Percussion rock drilling machine and drill rig

The present invention relates to a percussion rock drilling machine comprising a front head ( 1 ), in which front head ( 1 ) are arranged a flush housing ( 26 ) and a flush connector ( 25 ) for flushing medium. According to the invention, a sheath ( 31 ) of rust-resistant material is arranged at the front head ( 1 ) around the flush housing ( 26 ), such that flushing medium can enter the flush housing ( 26 ) through the flush connector ( 25 ), without coming into contact with the front head ( 1 ).

DRIVER FOR TORQUE AND ROTATION TRANSFER FROM A ROTATIONAL CHUCK TO A DRILL STEEL

A driver () for the transfer of torque and rotation from a rotation chuck () to a drill steel (), whereby the cross-section of the driver () is limited outwards by curves, in particular by arcs, united to form a closed FIG. that can be approximately described as a polygon, and limited inwards by splines (). The FIG. comprises four sides () and four corners (). The splines () comprise a number of spline teeth (), the number of which is divisible by four. 1. A driver for the transfer of torque and rotation from a rotation chuck to a drill steel , whereby the cross-section of the driver is limited outwards by curves , in particular by arcs , united to form a closed figure that can be approximately described as a polygon , and limited inwards by splines , wherein the figure comprises four sides and four corners , and wherein the splines comprise a number of spline teeth , the number of which is divisible by four.2. The driver according to claim 1 , wherein the splines comprise eight claim 1 , twelve or sixteen spline teeth.3. The driver according to claim 1 , wherein four of the spline teeth or spline spaces of the splines are symmetrically distributed around lines of symmetry through the figure.4. The driver according to claim 1 , wherein four of the spline teeth or spline spaces of the splines are asymmetrically distributed around lines of symmetry through the figure.5. The driver according to claim 3 , wherein the said lines of symmetry extend through the corners.6. The driver according to claim 1 , wherein each side comprises an arc of a circle and wherein the arcs of a circle of all sides have the same radius and length claim 1 , wherein each corner comprises an arc of a circle and wherein the arcs of a circle of all corners have the same radius and length.7. The driver according to claim 6 , wherein the connections between the arcs are arranged at points at which the tangents to the connected arcs coincide.8. The driver according to claim 1 , wherein the ratio ...

Downhole Tool Retainer And Guide Ring And Methods Of Fabricating The Same

A retainer and guide ring includes a first ring half and a second ring half that when placed adjacent to one another forms a complete ring. The retainer and guide ring also includes a kerf that is formed between ends of each of the first and second ring halves, which ranges from about zero inches to about 0.010 inches. In some exemplary embodiments, the retainer and guide ring is formed by obtaining two identical rings and making a cut along an edge of the diameter on each ring thereby forming a larger ring arc and a smaller ring arc for each of the rings. The two larger ring arcs are used to form the retainer and guide ring. In another exemplary embodiment, the retainer and guide ring is formed by obtaining a single ring and making a cut along the diameter.

Subsea casing drilling system

In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit.

Horizontal Directional Drill Pipe Drive Connection With Locking Feature

The present invention is directed to a spindle assembly for connecting a drill string to a rotational drive for use in a horizontal directional drilling operation. The assembly comprises a saver sub attached to the rotational drive, and a drive chuck for connection to the drill string. The drive chuck and saver sub form a torque-transmitting connection by engaging through a seat in the saver sub and an engagement point on the drive chuck. Dowel pins may be used to rotationally lock and provide the engagement between the saver sub and the drive chuck. A collar may thread to the saver sub and cause an interference fit by engaging the drive chuck at a shoulder.

Tapered Spline Connection for Drill Pipe, Casing, and Tubing

An apparatus comprises a first number of splines located near a first end of a first joint section and a second number of splines located near a second end of a second joint section. The first number of splines extends in an axial direction of the first joint section and spans a circumferential surface of the first joint section. Each of the first number of splines has a base, a tip, and a pair of flanks that extends from the base to the tip and forms an acute angle. Each of the first number of splines are configured to be received between adjacent pairs of splines in the second number of splines as the first end of the first joint section and the second end of the second joint section are joined. 1. An apparatus comprising:a first number of splines located near a first end of a first joint section, the first number of splines disposed on a circumferential outer surface of the first joint section, and extending in a first axial direction towards the first end and outwardly in a first radial direction from the circumferential outer surface, each of the first number of splines having a base, a tip, and a pair of flanks extending from the base to the tip wherein the pair of flanks forms an acute angle, wherein the first number of splines have first root radii at first interfaces between the first number of splines and the circumferential outer surface, and wherein a number of first edges of the first number of splines have a first rounded off portion;a second number of splines located near a second end of a second joint section, the second number of splines disposed on a circumferential inner surface of the second joint section and extending in a second axial direction towards the second end and inwardly in a second radial direction from the circumferential inner surface, each of the second number of splines having a base, a tip, and a pair of flanks extending from the base to the tip wherein the pair of flanks forms an acute angle. wherein the second number of splines ...

QUICK-RELEASE COUPLING FOR DRILLING AND RELATED METHODS

An apparatus in the form of an adapter for forming a connection comprising a first part adapted for coupling with a second part by a quick-release coupling formed by a first projection of the first part having an at least partial dovetail shape and a recess of the second part having an at least partial dovetail shape. An opening in the recess is adapted for receiving the projection in an axial direction. In other embodiments, the adapter is: (1) frictionally enhanced for engaging an internal portion of the drilling element; (2) includes a radial projection elongated in an axial direction for engaging the internal portion of the one drilling element; and/or (3) has a cutter for scoring an internal portion of the one drilling element upon being inserted therein and rotated. An adapter is also disclosed for use with a drill chuck, including for creating a “twist lock” connection. 1. An apparatus for forming a releasable connection , comprising:a first part adapted for coupling with a second part by a quick-release coupling formed by a first projection of the first part having an at least partial dovetail shape and a recess of the second part having an at least partial dovetail shape;wherein an opening in the recess is adapted for receiving the projection in an axial direction.2. The apparatus of claim 1 , wherein the projection comprises a full dovetail shape.3. The apparatus of claim 1 , wherein the recess comprises a full dovetail shape.4. The apparatus of claim 1 , wherein the first part is at least partially tubular and the second part is adapted to nest at least partially within the first part.5. The apparatus of claim 1 , wherein the first part includes two or more projections and the second part includes two or more corresponding recesses.6. The apparatus of claim 1 , wherein the first part comprises a drill bit and the second part comprises a carrier for the drill bit.7. The apparatus of claim 6 , wherein the carrier comprises a chuck adapted for fitting into a ...

Downhole Motor that Improved Thread Fastening Structure

A downhole motor having an improved thread fastening structure is proposed. In the downhole motor, a thread structure disposed therein and having ridges formed at both end portions at a predetermined distance from ends is improved and the internal structures of a first coupler and a second coupler in which the end portions of the thread are respectively inserted and fastened are improved to correspond to the end portions of the thread, thereby being able to improve sealing ability. 110. A downhole motor having an improved thread fastening structure to be used for drilling at an oil field , the downhole motor () comprising:{'b': 100', '102, 'a thread () having a hole therein formed through a first end and a second end and having ridges () formed on outer surfaces of a first end portion and a second end portion at predetermined distances respectively from the first end and the second end;'}{'b': 110', '111', '112', '113', '111', '100', '114', '113', '100, 'a first coupler () having a mud inlet () formed with a predetermined depth from a first end, having a first close-contact surface () and first grooves () that are sequentially formed from the inlet () to correspond to the first end portion of the thread (), and having a first coupling inlet () formed from the first grooves () to a second end to insert the thread () therein; and'}{'b': 120', '121', '100', '122', '123', '100, 'a second coupler () having a second coupling inlet () formed with a predetermined depth from a first end to insert the thread () therein, and having second grooves () and a second close-contact surface () sequentially formed from the second coupling inlet to a second end to correspond to the second end portion of the thread ().'}2100. The downhole motor of claim 1 , wherein the thread () is a National Pipe Taper (NPT) thread.3115102100112113. A downhole motor of claim 1 , wherein a first stopping step () to which the ridges () of the thread () are locked is formed on a border between the first ...

ANTI-ROTATION COUPLING FOR USE IN A DOWNHOLE ASSEMBLY

A downhole assembly that includes tubulars rotationally coupled to one another. An interface is between adjacent tubulars that makes up at least a portion of the rotational coupling. Certain surfaces of adjacent tubulars come into contact with one another when adjacent tubulars are rotationally coupled; and which are defined as contact surfaces. Each contact surface is profiled with facets that are complementary to facets on a corresponding contact surface of an adjacent tubular. The profiling of the contact surfaces is such that when a contact surface is brought together with a corresponding contact surface; facets on the contact surface abut facets on the corresponding contact surface along planes that are oblique or parallel with an axis of the tubular. At least some of a rotational torque transmitted between adjacent tubulars occurs across the abutting facets. 1. A downhole assembly comprising:a drill bit;a tubular member;a shaft connected to the drill bit and configured to rotate within and relative to the tubular member to rotate the drill bit; andthe shaft comprising a first shaft member with a first engagement area and a second shaft member with a second engagement area, the first and second engagement areas engaged with each other by a threaded connection,wherein at least one of the first and second engagement areas comprises one or more torsional locking elements.2. The downhole assembly of claim 1 , wherein the one or more torsional locking elements comprise raised members on at least one of the first and second engagement areas.3. The downhole assembly of claim 1 , wherein the threaded connection is a connection with a compression element.4. The downhole assembly of claim 1 , wherein the shaft and the tubular member are coupled by one or more bearings between the shaft and the tubular member.5. The downhole assembly of claim 1 , wherein the first and second engagement areas are under compression when engaged.6. The downhole assembly of claim 1 , wherein ...

BOTTOM HOLE ASSEMBLIES

A bottom hole assembly may include a shaft having threads, a first fastener member positioned on the shaft, the first fastener member having first fastener threads that mesh with a first portion of the threads on the shaft, and a second fastener member positioned downhole of the first fastener member on the shaft, the second fastener member having second fastener threads that mesh with a second portion of the threads on the shaft, wherein the first fastener member and the second fastener member interact with each other such that an uphole face of the first fastener threads are pressed against a downhole face of the first portion of the threads on the shaft and a downhole face of the second fastener threads are pressed against an uphole face of the second portion of the threads on the shaft. 1. A rotational to non-rotational force transfer system , comprising:a tubular shaft;a first bearing member coaxially mounted on the tubular shaft against a rotational component and providing rotational to non-rotational force transfer for the rotatable component;a first fastener member coaxially mounted on the tubular shaft against the first bearing member;a second fastener member coaxially mounted on the tubular shaft against the first fastener member, the first and second fastener members being tightened to each other; anda second bearing member coaxially mounted on the tubular shaft against the second fastener member and providing rotational to non-rotational force transfer for a non-rotational component.2. The system of claim 1 , further comprising external threads on the tubular shaft and internal threads on the first and second fastener members claim 1 , wherein the internal threads on the first and second fastener members push against the external threads on the tubular shaft in opposite directions when the first and second fastener members are tightened to each other.3. The system of claim 2 , wherein a distance between an internal thread on the first fastener member and ...

Shear Coupling

A shear coupling includes a first half, a second half, and a shear pin connected therebetween. The connections between the shear pin and the first half and the second half substantially isolate the shear pin from torsional, bending, and compression forces experienced by the first half or the second half. The connections between the shear pin and the first half and the second half transfer tension forces experienced by the first half and the second half to the shear pin from. A tension force above a predetermined threshold causes the shear pin to separate into two pieces that remain connected to the first and second halves. 1. A shear coupling , comprising:a first half having a connection feature adapted to connect the first half to another system component;a second half having a connection feature adapted to connect the second half to another system component;a shear pin connected between the first half and the second half, the connections between the shear pin and the first half and the second half being adapted to substantially isolate the shear pin from torsional, bending, and compression forces experienced by the first half or the second half, the connections between the shear pin and the first half and the second half begin adapted to transfer tension forces experienced by the first half and the second half to the shear pin from.2. A shear coupling as recited in claim 1 , wherein the shear pin is disposed at least partially within each of the first half and the second half.3. A shear coupling as recited in claim 1 , wherein the shear pin comprises a shear groove claim 1 , wherein the shear pin is adapted to separate into two pieces at the shear groove when a tension force above a predetermined threshold is applied to the shear pin.4. A shear coupling as recited in claim 3 , wherein a first piece of the two pieces of the shear pin remains connected to the first half when the shear pin separates into the two pieces.5. A shear coupling as recited in claim 3 , ...

OVERSHOT TOOL HAVING LATCH CONTROL MEANS

An overshot tool for releasable connection to a head assembly as part of a core barrel drilling apparatus. The overshot tool comprises a primary engaging portion and a secondary engaging portion and is configured for the automated coupling and de-coupling to a head assembly via selected engagement of the head assembly by the engaging portion. The overshot tool is configured to both deliver and retrieve a head assembly from a latched position at a cutting end the core barrel.

Threadless Torque Connector

A threadless connection assembly for use in connecting two tubular members. A connection assembly includes connection portions having interlocking splines and a link lock that secures the two connection portions axially. 1. A connection assembly for use in connecting a pair of wellbore tubular members in an end-to-end fashion , the connection assembly comprising:a first connection portion having a body with a first annular groove;a second connection portion having a body that can be reversibly assembled with the first connection portion, the second connection portion having a second annular groove that will align with the first annular groove to form a generally annular opening; anda link lock that is removably disposable within the annular opening to lock the first and second connection portions together axially.2. The connection assembly of wherein:the first connection portion has a splined section which presents a plurality of splines;the second connection portion has a splined section with a plurality of splines; andwherein the splines of the first connection portion become interlocked with the splines of the second connection portion when the connection portions are assembled so that the first and second connection portions are locked against rotation relative to each other.3. The connection assembly of wherein the link lock comprises a plurality of shear-resistant members that are flexibly connected together.4. The connection assembly of wherein the shear-resistant members are spherically shaped.5. The connection assembly of wherein the link lock is inserted into the annular opening through a lateral opening.6. The connection assembly of wherein at least one of the first and second connection portions includes a threaded connector to affixing the connection portion to a threaded wellbore tubular.7. The connection assembly of wherein the shear-resistant members are flexibly connected together by a cable that passes through each of the shear resistant members.8. ...

Trenchless drainage structure replacement

Replacement drainage structures and methods for replacing drainage structures are disclosed. An example method includes driving a plurality of sections of a replacement drainage structure around a buried drainage structure to be replaced. At least a portion of the drainage structure to be replaced is positioned within the interior of a section of the replacement drainage structure. Portions of the drainage structure to be replaced are removed.

Connecting Assembly and Receptacle Adapted to Receive Said Connecting Assembly for Connecting Two Tubing Sections, and Method for Installing and Connecting Two Tubing Sections in a Wellbore

The invention relates to a connecting assembly to be plugged into a mating receptacle in a wellbore, comprising a first sleeve including a second sleeve and having a top connecting end and a bottom connecting end, characterized in that: the first sleeve comprises the bottom end and has a top end opposite to said bottom connecting end, said bottom connecting end being provided with an end cap for preventing entrance of materials and capable of being opened; said second sleeve comprises said top connecting end located outside of the first sleeve and has a bottom end opposed to said top connecting end; said connecting assembly comprises a locking mechanism adapted to lock said second sleeve in a position relative to said first sleeve such that the bottom end of the second sleeve is inside said first sleeve, and the dimensions of the first sleeve and second sleeve are adapted such that when said locking mechanism is unlocked, said second sleeve is allowed to move relative to said first sleeve to impinge and open said end cap. 1. A connecting assembly to be plugged into a mating receptacle , the connecting assembly comprising:a first sleeve and including a second sleeve, the connecting assembly having a top connecting end, and a bottom connecting end,wherein the first sleeve comprises the bottom end and has a top end opposite to the bottom connecting end, the bottom connecting end being provided with a shutter for preventing entrance of materials;wherein the second sleeve comprises the top connecting end located outside of the first sleeve and has a bottom end opposed to the top connecting end;wherein the connecting assembly comprises a latching mechanism adapted to lock the second sleeve in a position relative to the first sleeve such that the bottom end of the second sleeve is inside the first sleeve, andwherein the dimensions of the first sleeve and second sleeve are adapted such that when the latching mechanism is unlocked, the second sleeve is allowed to move ...

METHOD OF AND APPARATUS FOR DRILLING A SUBTERRANEAN WELLBORE

A method of drilling a subterranean well bore comprising, monitoring the well bore for influx of formation fluid into the well bore, and, on detection of an influx, a) stopping any pump pumping fluid into the well bore, b) operating a first blow out preventer so that it closes within a first period of time, c) operating a second blow out preventer so that it closes within a second period of time, the second blow out preventer being located below the first blow out preventer, the second period of time being longer than the first period of time, d) circulating the influx out of the well bore via a flow line extending from below the second blow out preventer. 140-. (canceled)41. A method of drilling a subterranean well bore comprising , monitoring the well bore for influx of formation fluid into the well bore , and , on detection of an influx:a) stopping any pump pumping fluid into the well bore;b) operating a first blow out preventer so that it closes within a first period of time;c) operating a second blow out preventer so that it closes within a second period of time, the second blow out preventer being located below the first blow out preventer, the second period of time being longer than the first period of time; andd) circulating the influx out of the well bore via a flow line extending from below the second blow out preventer.42. The method according to wherein the second blow out preventer is capable of containing fluid at a higher pressure than the first blow out preventer.43. The method according to wherein there is a flow spool provided between the first blow out preventer and second blow out preventer with a fluid flow line hereinafter referred to as a pressure relief line extending from the flow spool claim 41 , the pressure relief line containing a pressure relief valve which is normally closed so as to substantially prevent flow of fluid along the pressure relief line claim 41 , and the method further includes the step of claim 41 , after the closing of ...

DOWNHOLE MOTOR COUPLING SYSTEMS AND METHODS

A drilling system includes a drillstring and a power section further including a stator having a stator axis and a rotor within the stator. The rotor rotates eccentrically within the stator in response to fluid flowing therebetween. Additionally, the system includes a coupling section including first, second, and third rotation members having a first, second, and third axes, respectively. The third rotation member is coupled to the first and second rotation members. The third rotation member is configured to move radially relative to the first and second rotation members as the first, second, and third rotation members rotate about the first, second, and third axes, respectively. Further, the system includes an input shaft coupled to the rotor and first rotation member. The input shaft and first rotation member rotate with the rotor eccentrically to the stator axis and the second rotation member rotates concentrically about the stator axis. 1. A downhole power generation assembly , comprising:a generator;a first shaft coupled to the generator, wherein the first shaft has a first central axis, and wherein rotation of the first shaft is configured to drive the generator to produce power;a second shaft having a second central axis that is oriented parallel to the first central axis and radially offset from the first central axis, wherein the second shaft is configured to be coupled to an end of a rotor of a downhole motor; anda coupling section coupling the first shaft to the second shaft and configured to transfer rotational torque from the second shaft to the first shaft; a first rotation member coupled to the first shaft and coaxially aligned with the first central axis;', 'a second rotation member coupled to the second shaft and coaxially aligned with the second central axis;', 'a third rotation member axially positioned between the first rotation member and the second rotation member, wherein the third rotation member is coupled to the first rotation member and ...

TOOL COUPLER WITH SLIDING COUPLING MEMBERS FOR TOP DRIVE

A drive unit of a top drive system includes a drive stem having a plurality of ports from an exterior thereof to an interior thereof. A plurality of sliding coupling members is disposed in the ports. A coupling collar encircles the drive stem and has actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position. 1. A drive unit of a top drive system comprising:a drive stem having a plurality of ports from an exterior thereof to an interior thereof;a plurality of sliding coupling members disposed in the ports; anda coupling collar encircling the drive stem and having actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.2. The drive unit of claim 1 , wherein the ports prevent the sliding coupling members from fully entering into the interior of the drive stem.3. The drive unit of claim 1 , wherein a radial depth of the recessed surfaces may be at least as large as a radial depth of the actuation surfaces.4. The drive unit of claim 1 , wherein the first position is a raised position.5. The drive unit of claim 1 , further comprising spring elements between the sliding coupling members and the coupling collar.6. The drive unit of claim 1 , further comprising actuators to move the coupling collar relative to the drive stem between the first position and the second position.7. The drive unit of claim 1 , further comprising a tool stem having coupling recesses engagable with the sliding coupling members.8. The drive unit of claim 7 , further comprising a load coupling comprising engagement of the sliding coupling members with the coupling recesses.9. The drive unit of ...

WELL TOOL DEVICE

A well tool device may include a first subsection and a second subsection connected to each other. The first subsection comprises a first connector having an outwardly facing first connection interface and the second subsection comprises a second connector having an inwardly facing second connection interface, where the second connector is provided radially outside of the first connector. The first connection interface is facing towards the second connection interface. The first connection interface comprises a first recess provided in the first connector. The second connection interface comprises a second recess provided in the second connector. The first and second recesses together are forming a bolt compartment. The well tool device further comprises a locking bolt provided in the bolt compartment formed by the first and second recesses in order to connect the first and second subsections to each other. The bolt compartment formed by the first and second recesses has an opening in the outer surface of the second connector. 1. A well tool device for use in an oil and/or gas well , comprising:a first subsection and a second subsection connected to each other, wherein the first and second subsection have a longitudinal axis;wherein the first subsection comprises a first connector having an outwardly facing first connection interface;wherein the second subsection comprises a second connector having an inwardly facing second connection interface;wherein the second connector is provided radially outside of the first connector;wherein the first connection interface is facing towards the second connection interface;wherein the first connection interface comprises a first recess provided in the first connector;wherein the second connection interface comprises a second recess provided in the second connector;wherein the first and second recesses together are forming a bolt compartment;wherein the well tool device further comprises a locking bolt provided in the bolt ...

ENHANCEMENTS OF MECHANICAL CONNECTOR TECHNOLOGY

A mechanical connector provided with a thread on substantially matching frustoconical surfaces extending between two sets of metal nipple seals is upgraded with an ability to transfer torque structurally in addition to friction, which is solely utilized to transfer torque in traditional connectors. Other than zero-pitch angle threads can be also effective in novel connector configurations. High torsional and bending load capacities are achieved structurally by use of: splines, dog-clutch teeth, fitted pins, keys, and/or interlocked thread systems, all used in isolation or in arbitrary combinations. Novel tapering of box and pin surfaces, fin and/or sandwich stiffeners and/or fairings, are provided to optimize loading in all regions of connectors and to meet specific design objectives. Thread angle mismatching between box and pin threads is introduced. Optionally assembly/disassembly fluids that solidify at least in some ranges of design temperatures can be used. 2. The mechanical connector provided with the zero-pitch angle thread on the substantially matching frustoconical surfaces of the box and the pin according to claim 1 , whereas at least one of said box or said pin is made of at least one of:a high strength steel,or a corrosion resistant alloy,or a titanium alloy,or an aluminum alloy,or a magnesium alloy,or a nickel based alloy,or a non-metallic material including a plastic material,or at least one of said box or said pin utilizes at least one of a lining or a cladding or a weld overlay.3. The mechanical connector provided with the zero-pitch angle thread on the substantially matching frustoconical surfaces of the box and the pin according to claim 1 , whereas at least one of said box or said pin features a plurality of grooves claim 1 , including a single groove claim 1 , located in an area adjacent to a metal nipple seal claim 1 , said plurality of grooves located in said area adjacent to said metal nipple seal increasing locally the flexibility of said box ...

FORCED SEPARATION DEVICE FOR SUBMARINE DRILLING MACHINE AND DRILLING TOOL

A forced separation device for a submarine drilling machine and a drilling tool comprises a transmission shaft, a main shaft, an electromagnetic transmission mechanism, a blasting separation mechanism and a pressure-resistant cabin, a gland is fastened to the upper portion of the pressure-resistant cabin, the electromagnetic transmission mechanism is provided with a driving sucker and a driven sucker, the driving sucker is connected with the transmission shaft, the driven sucker is connected with the main shaft, the gland is welded with the transmission shaft, and the driven sucker is welded with the lower portion of the pressure-resistant cabin; the blasting separation mechanism is provided with explosive packages and detonators, a plurality of explosive packages are distributed between the gland and the top surface of the pressure-resistant cabin, and each explosive package is connected with the corresponding detonator respectively; and the pressure-resistant cabin is further internally provided with a storage battery. 1. A forced separation device for a submarine drilling machine and a drilling tool , comprising a transmission shaft , a main shaft , an electromagnetic transmission mechanism , a blasting separation mechanism and a pressure-resistant cabin , wherein a gland is fastened to the upper portion of the pressure-resistant cabin , the electromagnetic transmission mechanism is provided with a driving sucker and a driven sucker which are attracted with each other , the driving sucker is connected with the transmission shaft , the driven sucker is connected with the main shaft , the gland is welded with the transmission shaft , and the driven sucker is welded with the lower portion of the pressure-resistant cabin;the blasting separation mechanism is provided with a plurality of explosive packages and detonators, the explosive packages are distributed between the gland and the top surface of the pressure-resistant cabin, and each explosive package is connected ...

HARDENED GROOVE FOR INDUCTIVE CHANNEL

A drill pipe joint includes an annular groove formed within its loadable primary or secondary shoulders. The groove may be formed in both shoulders. The groove may have parallel or non-parallel side walls and an undulating bottom wall. One or more of the respective walls may be deformed by peening that may increase the surface hardness of the respective walls. The hardened region may extend a distance from the deformed wall surfaces. An annular wired channel may be disposed within the groove. The channel may comprise a magnetically conductive electrically insulating material enclosing a wire coil on three sides and partially enclosing a top side of the channel. One end of the wire coil may be attached to a backstop that may be grounded to the walls of the groove. The other end of the wire coil may pass through an opening in the channel exiting the shoulder. 1. A hardened groove for an inductive channel , comprising:an annular adapter body having a first end and a second end;the first end comprising an annular groove comprising deformed, opposed wall surfaces joined by a deformed bottom wall surface, andthe annular groove comprising a hardened region extending a distance from the respective deformed wall surfaces into the adapter body, andthe second end being mountable to a drill pipe.2. The hardened groove of claim 1 , wherein the opposed wall surfaces are joined by a deformed claim 1 , undulating bottom wall surface.3. The hardened groove of claim 1 , wherein the respective wall surfaces each comprise a hardness greater than the remaining body of the adapter remote from the respective wall surfaces.4. The hardened groove of claim 1 , wherein an annular wired channel is disposed within the groove adjacent the respective deformed wall surfaces.5. The hardened groove of claim 1 , wherein the annular wired channel comprises an undulating bottom wall surface complementary with the undulating bottom wall surface of the hardened groove.6. The hardened groove of claim 1 , ...

Coupling Mechanism For Driveshaft Transmission Assembly

A driveshaft transmission assembly may include a coupling mechanism for coupling a radial bearing assembly to a driveshaft. The coupling mechanism may include a bearing cap for creating an interference fit with a downhole portion of the radial bearing assembly. The coupling mechanism may include locking pins and a retention sleeve to retain the locking pins in grooves of the driveshaft and openings in the radial bearing sleeve. The radial bearing assembly may include a catch mechanism for preventing the loss of certain driveshaft transmission assembly components downhole in the event of a failure of the driveshaft transmission. The coupling mechanism may prevent the loss of the driveshaft downhole subsequent to separation of certain driveshaft transmission assembly components. 1. A driveshaft transmission assembly , comprising:a coupling mechanism external to a driveshaft for coupling a radial bearing assembly to the driveshaft.2. The driveshaft transmission assembly of claim 1 , wherein the coupling mechanism is separate from the radial bearing assembly and the driveshaft and is positionable on the radial bearing assembly to prevent rotation and axial movement of the radial bearing assembly relative to the driveshaft.3. The driveshaft transmission assembly of claim 1 , wherein the coupling mechanism includes a bearing cap claim 1 , an uphole portion of the bearing cap being positionable radially adjacent to a downhole portion of the radial bearing assembly to couple the radial bearing assembly to the driveshaft using an interference fit.4. The driveshaft transmission assembly of claim 3 , wherein the downhole portion of the radial bearing assembly is positionable between the driveshaft and the uphole portion of the bearing cap.5. The driveshaft transmission assembly of claim 3 , wherein a downhole edge of the bearing cap is positionable proximate to a downhole shoulder on the driveshaft to create a gap between the downhole edge of the bearing cap and the downhole ...

Articulating Assembly For Transmitting Rotation Between Angularly Offset Members

An articulating assembly, including a first member having a first end, a second member, and a first coupling shaft engaged with the first end of the first member and with the second member, wherein the first coupling shaft has a first coupling shaft axis, the first coupling shaft is rotatable relative to the second member about the first coupling shaft axis, wherein the first member is rotatable relative to the first coupling shaft about a swivel axis, and wherein the swivel axis is perpendicular to the first coupling shaft axis, thereby providing an articulating coupling between the first end of the first member and the second member. The articulating assembly may further include an articulating coupling between a second end of the first member and a third member. 1. An articulating assembly comprising:(a) a first member having a first end, wherein the first end of the first member comprises a first thrust bearing surface;(b) a second member, wherein the second member comprises a second thrust bearing surface, and wherein the first end of the first member is received within the second member so that the first thrust bearing surface engages with the second thrust bearing surface; and(c) a first coupling shaft engaged with the first end of the first member and with the second member, wherein the first coupling shaft has a first coupling shaft axis, wherein the first coupling shaft is rotatable relative to the second member about the first coupling shaft axis, wherein the first member is rotatable relative to the first coupling shaft about a swivel axis, and wherein the swivel axis is perpendicular to the first coupling shaft axis.2. The articulating assembly as claimed in wherein one of the first end of the first member and the first coupling shaft defines an arcuate flange claim 1 , wherein the other of the first end of the first member and the first coupling shaft defines an arcuate groove claim 1 , and wherein the arcuate flange is received within the arcuate ...

DEVICE AND SYSTEM FOR PERCUSSION ROCK DRILLING

A drill bit for percussion rock drilling. An impact portion includes an impact surface for striking against rock in an impact direction. An engagement portion includes a holder configured to hold the drill bit axially in a drill head of a drill string, and a rotation engagement member configured to connect the drill bit with the drill head for rotating the drill bit. An anvil surface is directed opposite to the impact direction for receiving shock waves from a striker rod of the drill string. A flushing channel is configured to transfer flushing fluid to the impact surface. The holder and the anvil surface are inside a holder recess having an opening that is directed opposite to the impact direction. Also a drill string component, a system and a method. 1. A drill bit for top hammer percussion rock drilling including:an impact portion with an impact surface for striking against rock in an impact direction, a holder configured to hold the drill bit axially in a drill head of a drill string,', 'a rotation engagement member configured to connect the drill bit with the drill head for the purpose of rotation of the drill bit, and', 'a holder recess having an opening that is directed opposite to the impact direction, wherein the holder is arranged inside the holder recess,, 'an engagement portion comprising'}{'b': '15', 'an anvil surface being directed opposite to the impact direction for receiving shock waves from a striker rod () of the drill string,'}wherein the holder is directed inwards inside the holder recess for co-operation with corresponding holder elements on the striker rod,wherein the anvil surface is arranged inside the holder recess, andwherein the rotation engagement member is directed outwards for rotational force co-operation with corresponding elements protruding inwards inside a cavity of the drill head.2. The drill bit according to claim 1 , wherein the anvil surface is a bottom surface inside the holder recess.3. The drill bit according to claim 1 , ...

PIPE JOINT HAVING COUPLED ADAPTER

An adapter for a wired drill pipe joint includes an annular adapter having a first end and a second end, an annular recess extending partially into the first end of the adapter and an element of a communication coupler disposed at least partially within the annular recess, wherein the second end of the adapter is configured to be coupled to an end portion of the wired drill pipe joint. 1. An adapter for a wired drill pipe joint , comprising:an annular adapter having a first end and a second end;an annular recess extending partially into the first end of the adapter; andan element of a communication coupler disposed at least partially within the annular recess;wherein the second end of the adapter is configured to be coupled to an end portion of the wired drill pipe joint.2. The adapter of claim 1 , wherein the adapter comprises a first material having a first hardness claim 1 , the wired drill pipe joint comprising a second material having a second hardness claim 1 , and wherein the hardness of the first material is greater than the hardness of the second material.4. The adapter of claim 1 , wherein the adapter is at least partially coated with an electrically conductive material.5. The adapter of claim 1 , wherein the adapter comprises a first material having a first compressive strength claim 1 , wherein the wired drill pipe joint comprises a second material having a second compressive strength claim 1 , and wherein the compressive strength of the first material is greater than the compressive strength of the second material.6. The adapter of claim 1 , wherein the adapter comprises a first material having a first ductility claim 1 , wherein the wired drill pipe joint comprises a second material having a second ductility claim 1 , and wherein the ductility of the first material is lower than the ductility of the second material.7. The adapter of claim 1 , further comprising an annular latch that is in contact with the wired drill pipe joint and the adapter claim 1 ...

MULTI-FUNCTIONAL CONNECTOR, DRILL HEAD, AND METHOD

A multi-functional connector is arranged for connecting a functional drill element to a drill head, such as an extendable cylinder of a drill head. The multi-functional connector includes a first connecting element having a first receptacle, a second connecting element having a second receptacle, and a retainer element having a retainer opening. The first receptacle has at least two driving surfaces for transferring a torque in a first direction, the second receptacle has at least two driving surfaces for transferring a torque in a first direction and in a second, opposite direction, and the retainer element has at least one retaining section to prevent a movement of a second functional drill element relative to the second connecting element in a retracting position of the second functional drill element. 1. A multi-functional connector for connecting a functional drill element to a drill head , in particular to an extendable cylinder of a drill head , the multi-functional connector comprising:a first connecting element with a first receptacle arranged to receive a connecting section of a first functional drill element therein;a second connecting element arranged proximal to the first connecting element in a direction of a longitudinal axis of the multi-functional connector with a second receptacle arranged to receive a connecting section of a second functional drill element therein; anda retainer element arranged between the first and the second connecting elements, the retainer element having a retainer opening for receiving the connecting section of the second functional drill element therethrough, wherein the first receptacle has at least two driving surfaces for transferring a torque in a first direction to at least two corresponding contact surfaces on the connecting section of the first functional drill element, the second receptacle has at least two driving surfaces for transferring a torque in a first direction and in a second, opposite direction to at ...

Extendable cyclinder, drill head and method

The invention relates to an extendable cylinder ( 10 ), in particular an extendable cylinder for a drill head ( 2000 ), a drill head comprising an extendable cylinder, and a method of operating a drill head. The extendable cylinder comprises a shaft ( 100 ) with a shaft ring volume ( 101 ) between an inner part ( 110 ) and an outer part ( 120 ) of the shaft; a piston ( 200 ) with a piston ring volume ( 201 ) between an inner part ( 120 ) and an outer part ( 220 ) of the piston; the piston being moveable with respect to the shaft along a longitudinal axis (LX); a proximal end of the outer part of the piston being arranged between the inner and outer part of the shaft; and a distal end of the inner part of the shaft being arranged between the inner and outer part of the piston; and wherein the extendable cylinder is extendable and/or retractable along the longitudinal axis.

MULTI-START THREAD CONNECTION FOR DOWNHOLE TOOLS

A wellbore apparatus includes a first component having a first element and a second component having a second element. The first component and the second component are connected by a multi-start thread connection and the first element and the second element being operatively connected to one another. 1. A wellbore apparatus , comprising:a first component having a first element; anda second component having a second element, the first component and the second component being connected by a multi-start thread connection, the first element and the second element being operatively connected to one another.2. The wellbore apparatus of claim 1 , wherein the first element and the second elements are each a segment of a line.3. The wellbore apparatus of claim 2 , wherein the line is configured to convey one of: (i) an optical signal claim 2 , (ii) an electrical signal claim 2 , (iii) an acoustic signal claim 2 , (iv) a fluid claim 2 , (v) energy.4. The wellbore apparatus of claim 1 , further comprising a coupler operatively connecting the first element with the second element.5. The wellbore apparatus of claim 4 , wherein the coupler forms an induction coupling between the first element and the second element.6. The wellbore apparatus of claim 4 , wherein the coupler forms an electromagnetic resonance coupling between the first element and the second element.7. The wellbore apparatus of claim 4 , wherein the coupler forms a capacitive coupling between the first element and the second element.8. The wellbore apparatus of claim 4 , wherein the coupler forms a physical contact between the first element and the second element.9. The apparatus of claim 1 , wherein the first element is one of: a wire claim 1 , a sensor claim 1 , a hydraulic pump claim 1 , a hydraulic line claim 1 , a hydraulic consumer claim 1 , an electrical power generator claim 1 , an electrical power consumer claim 1 , an electromechanic actuator claim 1 , a hydraulic actuator claim 1 , an electric pump claim ...

Pipe Coupling

A coupling system between tubulars such as tubing, pipes, casing and liner for location in a well bore in which profiled sections () on the tubulars () are connected using a radially applied force to form a metal to metal sealed connection. Embodiments are provided in which the profiled sections are grooved and/or tapered, additional profiles are provided to prevent relative rotation of the tubulars, the radial force is applied inwardly, outwardly or in both directions, and a connector is used as an additional tubular member to form the coupling. 1. A coupling system between first and second tubular members comprising: a first tubular member having a first end which includes a first profiled section extending circumferentially and continuously around an outer surface; a second tubular member having a first end which includes a second profiled section extending circumferentially and continuously around an inner surface; the first end of the first tubular member being inserted within the first end of the second tubular member so that the profiled sections are coaxial and by application of a force creating a metal to metal seal between the tubular members at the profiled sections.2. A coupling system according to wherein the first and second tubular members have the same outer diameter and inner diameter.3. A coupling system according to any preceding wherein the force is applied radially outwardly.4. A coupling system according to wherein the force is applied radially inwards.5. A coupling system according to wherein the first profiled section comprises one or more circumferential grooves formed on the outer surface of the first end.6. A coupling system according to wherein the second profiled section comprises one or more circumferential grooves formed on the inner surface of the first end.7. A coupling system according to wherein a continuous annular rim is formed between each pair of grooves.8. A coupling system according to wherein grooves are formed on the first ...

ADAPTER ASSEMBLY FOR USE WITH A WELLBORE TOOL STRING

An adapter assembly for use with a wellbore tool string may include a tandem seal adapter (TSA) having a TSA body extending along an axial direction and a collar having a collar body formed in a substantially annular shape and extending in the axial direction. The collar may be provided outward from the TSA in a radial direction substantially perpendicular to the axial direction. The TSA body and the collar body may overlap in the axial direction. The collar may abut the TSA. 1. An adapter assembly for use with a wellbore tool string , the adapter assembly comprising:a tandem seal adapter (TSA) comprising a TSA body extending along an axial direction; anda collar comprising a collar body formed in a substantially annular shape and extending in the axial direction, the collar being provided outward from the TSA in a radial direction substantially perpendicular to the axial direction; wherein:the TSA body and the collar body overlap in the axial direction;the collar abuts the TSA; anda collar maximum outer diameter is larger than a TSA maximum outer diameter.2. The adapter assembly of claim 1 , wherein;the TSA further comprises a first seal provided on an outer surface of the TSA body;the collar further comprises a first collar coupling; andthe first seal overlaps with the first collar coupling in the axial direction.3. The adapter assembly of claim 2 , wherein a first housing of a first wellbore tool is provided between the first seal and the first collar coupling in the radial direction.4. The adapter assembly of claim 2 , wherein:the first seal is provided to a first side of a TSA center of the T SA body in the axial direction;the first collar coupling is provided to a first side of a collar center of the collar body in the axial direction;the TSA further comprises a second seal provided on the outer surface of the TSA body to a second side of the TSA center in the axial direction;the collar further comprises a second collar coupling provided to a second side of ...

Anti-Rotation Wedge

A key assembly is press fit into an annular space between a box and pin member to resist relative rotation of the box and pin members. The key assembly includes wedge like members that contact one another along complementary tapered surfaces, and when in contact generate radial forces into the box and pin member to secure the connection between the box and pin. The outer wedge is inserted first into the annular space between the box and pin members, and has rows of elongate teeth that project radially outward into contact with an inner surface of the box member. Because the outer wedge is pushed radially outward against the box member rather than axially sliding therebetween, the teeth protrude into the surface of the box member thereby increasing the anti-rotation force created by the outer wedge. 1. A connection system for a tubular string comprising:a box end on an end of a second tubular;a pin end on an end of a first tubular that is selectively insertable into the box end; anda key assembly comprising an interface member and backing member that are wedged together in an annular space between the box end and pin end and frictionally couple to both the box end and pin end.2. The connection system of claim 1 , wherein a pocket is provided in the annular space between the box end and pin end claim 1 , wherein the pocket extends along a portion of the circumference of the box end.3. The connection system of claim 1 , wherein the interface and backing members have complementary tapered surfaces claim 1 , and wherein when the backing member is inserted into the annular space and the tapered surfaces are in sliding contact claim 1 , the interface and backing members project radially outward into frictional engagement with the box and pin members.4. The connection system of claim 1 , wherein the interface member has teeth on a radially outward projecting surface that engage an inner surface of the box member When the backing member is inserted into the annular space.5. ...

MULTI-START THREAD CONNECTION FOR DOWNHOLE TOOLS

An apparatus for transferring rotary power to a consumer in a wellbore includes a rotary power source positioned along a conveyance device and a drive train connected to the rotary power source. The drive train transfers torque from the rotary power source to a consumer. The drive train includes at least two torque transmitting members connected by a multi-start thread connection. 1. An apparatus for transferring rotary power to a consumer in a wellbore , comprising:a conveyance device configured to be disposed in the wellbore;a rotary power source positioned along the conveyance device, the rotary power source generating a torque; anda drive train connected to the rotary power source, the drive train transferring the torque from the rotary power source to a consumer, wherein the drive train includes at least two torque transmitting members connected by a multi-start thread connection.2. The apparatus of claim 1 , wherein the multi-start thread connection is formed at a pin and box connection between the at least two torque transmitting members.3. The apparatus of claim 1 , wherein a number of starts of the multi-start thread connection is selected to increase torque capacity of a connection between the at least two torque transmitting members relative to a single start thread connection.4. The apparatus of claim 1 , wherein the rotary power source is a drilling motor.5. The apparatus of claim 1 , wherein the consumer is a drill bit.6. The apparatus of claim 1 , wherein at least one of the two torque transmitting members is one of: (i) a rotor claim 1 , (ii) flex shaft claim 1 , and (iii) a drive shaft.7. The apparatus of claim 1 , wherein the conveyance device is a drill string.8. The apparatus of claim 1 , wherein the multi-start screw has at least two intertwined helically wound threads.9. A method for transferring rotary power to a consumer in a wellbore claim 1 , comprising:disposing a conveyance device in the wellbore, the conveyance having a rotary power ...

DRIVESHAFT RETENTION ASSEMBLY

A retention apparatus can be used for a driveshaft transmission assembly. The retention apparatus may include a catch mechanism and a resilient member. The retention apparatus may be mounted to a radial bearing assembly of a driveshaft transmission assembly. The catch mechanism of the retention apparatus may be sized to prevent the loss of certain driveshaft transmission assembly components downhole in the event of a failure of the driveshaft transmission due to dynamic loads produced during operation in a drilling system. 1. A retention apparatus for a driveshaft transmission assembly , the retention apparatus comprising:a catch mechanism having an inner diameter sized to be slidably received onto a radial bearing assembly and an outer diameter sized to extend radially beyond an outer diameter of the radial bearing assembly, the catch mechanism including ridges that are positionable proximate to corresponding protrusions on the radial bearing assembly; anda resilient member sized to be slidably received onto the radial bearing assembly and to apply a compression force on the catch mechanism for coupling the catch mechanism to the radial bearing assembly.2. The retention apparatus of claim 1 , wherein the outer diameter of the catch mechanism is sized to prevent a loss of driveshaft transmission assembly components downhole subsequent to a separation of the driveshaft transmission assembly components.3. The retention apparatus of claim 1 , wherein the resilient member is a spring having a resiliency to apply the compression force on the catch mechanism such that the ridges are mounted to the corresponding protrusions having downhole edges shaped to mountably receive one of the ridges.4. The retention apparatus of claim 1 , wherein the ridges are sized to be mountably received by the corresponding protrusions having downhole edges shaped to prevent the catch mechanism from rotating.5. The retention apparatus of claim 1 , wherein the ridges are positionable to be ...

COMBINATION MUD MOTOR FLOW DIVERTER AND TILED BEARING, AND BEARING ASSEMBLIES INCLUDING SAME

A mud motor radial bearing, a combination flow diverter and integral radial mud motor bearing, and a mud motor bearing assembly including the combination. The flow diverter includes a body defining threaded box ends, a concentric longitudinal bore, a generally cylindrical outer surface, and a longitudinal axis. The longitudinal bore fluidly connects the first and second threaded box ends. The first threaded box end connects to a pin of a transmission of a mud motor rotor, and the second threaded box end connects to a pin of a mandrel. A portion of the generally cylindrical outer surface of the body in a region of the second threaded box end has bonded thereto a bearing material. The bearing material includes a plurality of tungsten carbide portions surrounded by a hard metal alloy matrix binder. 1. A mud motor radial bearing comprising:a rotatable cylindrical steel support having a generally cylindrical outer surface, at least portions of the outer surface having bonded thereto a bearing material, the bearing material comprising a plurality of tungsten carbide portions surrounded by a hard metal alloy matrix, the hard metal alloy matrix comprising at least one carbide selected from carbides of chrome, carbides of boron, and mixtures thereof, the remainder of the hard metal alloy matrix comprising a binder metal selected from iron, cobalt, nickel, and mixtures thereof; anda portion of a stationary cylindrical bearing housing having a generally cylindrical inner surface against which an outer surface of the bearing material interfaces as the rotatable cylindrical steel support rotates.2. The mud motor radial bearing according to wherein the at least one carbide is present at a weight percentage of at least 30 weight percent claim 1 , based on total weight of the at least one carbide and binder.3. The mud motor radial bearing according to wherein the generally cylindrical outer surface of the rotatable cylindrical steel support comprises a reduced diameter portion in ...

Weld Joints Involving Dissimilar Metals and Methods for Forming Same

A method of joining a steel first member to a stainless steel second member includes buttering a first joint surface on the first member, the buttering including: preheating the first joint surface; welding a border layer of weld material to the first joint surface; and heat treating the border layer and the first joint surface after welding the border layer. A weld is formed between the first and second members after heat treating the border layer and the first joint surface. The border layer and a second joint surface on the second member are preheated; and a body of weld material is added between the border layer and the second joint surface.

DOWNHOLE COUPLING MECHANISM

A downhole coupling mechanism for use in downhole tools that find application in wells exploited by a hydraulic refracturing process. The downhole coupling mechanism connects first and second tubular sections via a tensile load arrangement of wires located in complimentary grooves, a torque arrangement of interlocking lugs and notches on opposite ends, and a seal arrangement. The downhole coupling mechanism provides a thin walled coupling where a screw-threaded connection could not achieve the required tensile load, torque and sealing properties needed. Embodiments of a thin walled anchor and packer including the downhole coupling mechanism are described. 1. A downhole coupling mechanism between a first end of a first tubular section being part of a downhole tool and a second end of a second tubular section , comprising:one or more complimentary circumferential grooves machined in opposing surfaces of each end that malign when the first and second ends are arranged co-axially one inside the other;at least one wire located within one of the circumferential grooves on the first end and a complimentary one of the circumferential grooves on the second end, wherein each pair of complimentary grooves contains the at least one wire extending around the circumference of the surface of each end;at least one lug and corresponding notch arranged on opposite of the first and second ends providing interlocking engagement when the first and second ends are arranged co-axially one inside the other, wherein the at least one notch extends from an inner surface of the second tubular section and does not extend through the wall thickness of the second tubular member; andone or more seals arranged between the opposing surfaces when the first and second ends are arranged co-axially one inside the other.2. The downhole coupling mechanism according to claim 1 , wherein a wall thickness of the downhole coupling mechanism when the first and second ends are arranged co-axially one inside the ...

SYSTEMS AND METHODS FOR PRODUCING FORCED AXIAL VIBRATION OF A DRILLSTRING

Systems and methods for producing forced axial vibration of a drillstring. Systems include a cam housing positioned above a drill bit in a drillstring, a rotatable cam positioned internal of the cam housing, the rotatable cam having at least one cam surface exhibiting reciprocating axial movement upon rotation of the rotatable cam, and a non-rotatable cam follower positioned internal surface of the cam housing and having at least one cam follower surface engaging the cam surface. The cam follower transfers the reciprocating axial movement to the drill bit. The rotatable cam is rotated by a fluid-powered positive displacement power section positioned above and mechanically attached to the rotatable cam in the drillstring to effect the rotation of the rotatable cam, and thus effect the reciprocating axial movement of the drill bit. 1. A system for producing forced axial vibration of a drillstring comprising:a cam housing positioned above a drill bit in a drillstring;a rotatable cam positioned internal of the cam housing, the rotatable cam having at least one cam surface exhibiting reciprocating axial movement upon rotation of the rotatable cam;a non-rotatable cam follower positioned internal of the cam housing and having at least one cam follower surface engaging the at least one cam surface;the cam follower transferring the reciprocating axial movement to the drill bit; anda fluid-powered positive displacement power section positioned above and mechanically attached to the rotatable cam in the drillstring to effect the rotation of the rotatable cam, and thus effect the reciprocating axial movement of the drill bit.2. The system according to wherein the at least one cam housing claim 1 , rotatable cam claim 1 , stationary cam follower claim 1 , and fluid-powered positive displacement power section are generally cylindrical.3. The system according to wherein:the rotatable cam comprises a generally cylindrical body defining a central throughbore, the body having first ...

COMBINED MULTI-COUPLER WITH ROTATING LOCKING METHOD FOR TOP DRIVE

A tool coupler includes a first component having a tubular body and a locking member and a second component. The second component includes a housing having an opening for receiving the tubular body; a locking ring having a latch; and an axial channel; a recess for receiving the locking member, wherein the latch is positioned in the channel to retain the locking member in the recess. 1. A tool coupler comprising:a first component having a tubular body and a locking member; and a housing having an opening for receiving the tubular body;', 'a locking ring having a latch;', 'an axial channel; and', 'a recess for receiving the locking member, wherein the latch is positioned in the channel to retain the locking member in the recess., 'a second component having2. The tool coupler of claim 1 , wherein the locking member is rotatable into or out of the recess.3. The tool coupler of claim 1 , wherein the locking ring is disposed around a recessed groove of the housing.4. The tool coupler of claim 3 , wherein the locking ring is axially movable in the recessed groove between an upper position and a lower position.5. The tool coupler of claim 1 , wherein the first component comprises a plurality of locking members.6. The tool coupler of claim 1 , wherein the locking member is disposed on an outer surface of the tubular body and protrudes outwardly in a radial direction.7. A tool coupler claim 1 , comprising:a first component having a tubular body and a plurality of circumferentially spaced locking receivers; and a housing having a tubular body and a plurality of locking members, wherein the plurality of locking receivers is rotatable into engagement with the plurality of locking members to axially lock the first component to the second component; and', an opening for receiving the plurality of locking receivers; and', 'a plurality of latches disposed in the opening, wherein the plurality of latches is disposable between the plurality of locking receivers to rotationally lock ...

Release assembly and method of forming drilling tool

A release assembly and a method of forming a drilling tool for rock or overburden drilling is provided. The release assembly is arranged axially between two drilling tool components. The release assembly includes a release mechanism allowing an initial axial length to shorten when a joint of the drilling tool components provided with connecting threads is turned in an opening direction. The release assembly has a decreased second axial length and friction forces in the joint decrease.

UPSET TELEMETRY TOOL JOINT AND METHOD

A drill string tool comprising a tube comprising a bore and a bore wall having externally and internally upset end portions in the bore wall. The upset end portions comprising one or more axial grooves in the bore wall open to the bore of the tube. The upset end portions further comprising a conical weld surface comprising an annular shoulder. The one or more axial grooves may be formed in the upset portions subsequent to forming the internal upset. Or, the axial grooves may be formed using a die and an internal upset mandrel comprising one or more axial lobes when the internal upset is formed in the bore wall. The upset end portions of the tube may be attached by friction welding to pin end and box end tool joints. The pin end and box end tools joints may comprise a conical weld surface comprising an annular shoulder. 1. A drill string tool and method , comprising:providing a tube comprising a central bore and a central bore wall suitable for use in a drill string tool;forming an annular external upset in the bore wall of the opposing end portions of the tube;forming an annular internal upset in the bore wall radially opposite the external upset comprising one or more axial grooves, whereinthe axial grooves in the bore wall are open to the bore of the tube.2. The method of claim 1 , wherein the internal upset further comprises a conical weld surface comprising an annular shoulder intersecting the bore and bore wall of the tube and the one or more axial grooves.3. The method of claim 1 , providing a pin end tool joint comprising a secondary shoulder comprising an annular groove communicating with an axial passageway within the tool joint.4. The method of claim 1 , wherein the pin end tool joint further comprises a conical weld surface comprising an annular shoulder.5. The method of claim 1 , providing a box end tool joint comprising a secondary shoulder comprising an annular groove communicating with an axial passageway within the tool joint.6. The method of claim 1 ...

Coiled Tubing Connector with Internal Anchor and External Seal

A connector for a coiled tubing end anchors internally and seals externally. The anchor profile is split with a gap to clear an internal spline without need to remove the spline to allow a seal to enter the coiled tubing since the seal is mounted internally to a sleeve that envelops the end of the coiled tubing. Component relative rotation extends the internal anchor radially against the coiled tubing inner wall to secure the connection with the seal engaged to the coiled tubing outer wall. 1. A connection for a borehole tool to a coiled tubing end , comprising:a mandrel having an interior surface with an axial inwardly-projecting spline;said mandrel having an end sub that extends into the coiled tubing end for anchoring to an interior surface of the coiled tubing end and a seal ring which extends over said coiled tubing end for selectively sealing said mandrel end to an outer surface of the coiled tubing end; anda lock ring having a split which straddles the spline when the end sub is within the coiled tubing end and which is expanded radially toward the interior surface upon a ramp of the mandrel to lock the mandrel within the coiled tubing end.2. The connection of claim 1 , wherein:said mandrel further comprises a surrounding sleeve supported by said mandrel defining an annular space in between, said annular space adapted to accept the coiled tubing end.3. The connection of claim 2 , wherein:said surrounding sleeve further comprises a seal extending into said annular space for said selective sealing to said outer surface of the coiled tubing end.4. The connection of claim 3 , wherein:said seal comprises at least one o-ring in a groove.5. The connection of claim 1 , wherein:one of said ramps is axially actuated by relative rotation of an exterior ring on said mandrel with respect to said mandrel.6. A well treatment method using a tool connected to a coiled tubing end with a connector. comprising:leaving in place a spline inside said coiled tubing;advancing a lock ...

STAB CONNECTOR ASSEMBLY AND METHODS USABLE FOR ESTABLISHING A FLUID CONNECTION

Systems and methods enable connection of, and are usable to connect, well servicing equipment to other well equipment, including wellheads, blowout preventers, and other well servicing equipment. The systems comprise connecting apparatus having a male connector and female connector. The male connector comprises an elongate body having an axial bore extending therethrough and a plurality of protrusions extending from the elongate body at an angle relative to the axial bore. The female connector can be adapted for connection with the male connector, wherein engagement between the male connector and female connector communicates the axial bore of the male connector with a bore of the female connector to define a flowpath for communicating a medium. The systems and methods enable the ability to connect or disconnect well equipment remotely without the need of a diver, an ROV, and without the need to bring the well equipment to the surface for disassembly. 1. A system for establishing a fluid connection , the system comprising: an elongate body having a bore extending longitudinally therethrough and a plurality of cavities on an outer surface of the elongate body;', 'a plurality of protrusions extending from the plurality of cavities along a radial axis, wherein the plurality of protrusions are biased in an extended position, wherein the plurality of protrusions are retractable into the plurality of cavities; and', 'a sleeve slidably positioned about the elongate body, wherein the sleeve is adapted to force the plurality of protrusions into the plurality of cavities; and, 'a male connector comprisinga female connector comprising a tubular body having a bore extending longitudinally therethrough and a plurality of apertures extending radially therethrough,wherein the elongate body of the male connector is adapted to enter the tubular body of the female connector,wherein the bore of the male connector and the bore of the female connector are adapted to join together to ...

Hydraulically Operated Polished Rod Clamp

A polished rod clamp includes a clamp housing having a central passage passing through a tapered bore. A wedge lock is arranged in the tapered bore such that a first surface of the wedge lock is in sliding engagement with a tapered surface of the tapered bore and a second surface of the wedge lock grips a rod in the central passage in a lock position. A first reciprocating piston is arranged to apply a first force to the wedge lock that effects a relative sliding motion between the wedge lock and the tapered surface in a first direction corresponding to the lock direction of the wedge lock. A second reciprocating piston is arranged to apply a second force to the wedge lock that effects a relative sliding motion between the wedge lock and the tapered surface in a second direction that is opposite to the first direction.

A COUPLING

A coupling assembly for coupling a first rod member with a second rod member, where the assembly includes a male connecting end of the first rod member being adapted for being received into a female connecting end of the second rod member, and a locking mechanism for preventing the first and second rod members from being uncoupled. The locking mechanism includes a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the female connecting end and the stop thereby preventing the male connecting end from being withdrawn from the female connecting end. 117-. (canceled)18. A coupling assembly for coupling a first rod member with a second rod member , the assembly comprising:a male connecting end of the first rod member being adapted for being received into a female connecting end of the second rod member, wherein at least a part of the male connecting end comprises an engaging surface adapted for engagement with an internal surface forming a cavity in the female connecting end and thereby preventing rotation of the male connecting end relative to the female connecting end; anda locking mechanism for preventing the first and second rod members from being uncoupled, the locking mechanism comprising a stop positioned in between the male connecting end and a locking member such that during use the locking member engages at least a part of the female connecting end and the stop thereby preventing the male connecting end from being withdrawn from the female connecting end.19. A rod assembly comprising:a male connecting end and a female connecting end such that the male connecting end of the rod assembly is adapted for being received into the female connecting end of another of the rod assembly, wherein at least a part of the male connecting end comprises an engaging surface adapted for engagement with an internal surface forming a cavity in the female connecting end and thereby preventing ...

Down-hole motor universal joint assembly

A universal joint (U-joint) assembly transmits torque from a drive component to a driven component across an articulating joint. The U-joint assembly includes male and female U-joint members, a central ball joint, and a retaining device configured to secure the assembly in an assembled configuration. The female U-joint member includes a cavity extending into a receptacle end thereof. The cavity terminates in a circular receptacle and includes a plurality of rectangular channels extending radially outward from the cavity at equal intervals, each channel defined by three planar drive surfaces. The male U-joint member has a drive end with a plurality of corresponding rectangular extensions protruding from an outer periphery of the drive end, each extension including a plurality of axial angular surfaces. When assembled, each of the angular surfaces of the drive end opposes a corresponding one of the drive surfaces of the cavity. Other embodiments are also disclosed.

CONNECTION METHODS AND SYSTEMS

Various novel connectors are provided. In one embodiment, the connector includes a collar configured to receive first and second components. In this embodiment, the connector may also include a load ring configured to be received in a groove of the second component and to move into and out of engagement with the collar when the second component is received by the collar. The connector of this illustrative embodiment may also include a cotter configured for installation to the second component and to inhibit disengagement of the load ring from the collar. In some embodiments, engagement of the load ring and the collar effects securing of the first and second components to one another. Other devices, systems, and methods related to connectors are also disclosed. 1. A system , comprising: a collar comprising first threads along a first end portion and second threads along a second end portion;', 'a first load ring having first mating threads; and', 'at least one anti-rotation feature configured to guide the first load ring into a first threaded engagement with the collar, wherein the first threaded engagement comprises the first threads mated with the first mating threads., 'a coupling, comprising2. The system of claim 1 , wherein the at least one anti-rotation feature comprises at least one rod claim 1 , key claim 1 , or snap ring.3. The system of claim 1 , wherein the first load ring comprises a first split load ring.4. The system of claim 3 , wherein the at least one anti-rotation feature is disposed in a first split in the first split load ring.5. The system of claim 4 , wherein the at least one anti-rotation feature comprises a rod.6. The system of claim 4 , wherein the at least one anti-rotation feature comprises a key having a fastener receptacle to receive a radial fastener.7. The system of claim 6 , wherein the first split ring comprises a first fastener receptacle disposed in a first circumferential end portion and a second fastener receptacle disposed in a ...

DOWNHOLE FORCE GENERATING TOOL

The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool. 1. A downhole tool , the tool comprising:a central element; anda sleeve rotatably and orbitally disposed around the central element, the sleeve rotates around the central element responsive to fluid flowing through the downhole tool.2. The tool of wherein the central element includes an outlet disposed therein to permit fluid to flow from a passageway disposed through the central element to an annulus area disposed between the central element and the sleeve.3. The tool of wherein the sleeve includes an exhaust port disposed therein to permit fluid to flow from the annulus area to outside of the downhole tool.4. The tool of wherein the central element has a rotor profile disposed thereon and the sleeve has a stator profile disposed on the inside to cooperate with the rotor profile to force the sleeve to rotate and orbit around the central member as fluid flows from the passageway claim 3 , through the outlet in the central member claim 3 , between the central member and the sleeve and out of the exhaust port.5. The tool of wherein the downhole tool further comprises a wobble joint assembly disposed adjacent to one end of the central member.6. The tool of wherein the wobble joint assembly includes a first spherical element supported by the sleeve and a second spherical element disposed on one end of the central member.7. The tool of wherein the wobble joint assembly further includes a first transition sleeve disposed around the second spherical element and a second transition sleeve disposed adjacent to the first transition sleeve and around the ...

METHOD OF USING A DOWNHOLE FORCE GENERATING TOOL

The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool. 1. A method , the method comprising:pumping fluid to a downhole tool to rotate and orbit a sleeve around a central member to advance the downhole tool into a wellbore.2. The method of wherein the downhole tool is included with other tools in a bottom hole assembly (BHA) and the downhole tool is used to advance the BHA into the wellbore.3. The method of wherein the central element includes an outlet disposed therein to permit fluid to flow from a passageway disposed through the central element to an annulus area disposed between the central element and the sleeve.4. The method of wherein the sleeve includes an exhaust port disposed therein to permit fluid to flow from the annulus area to outside of the downhole tool.5. The method of wherein the central element has a rotor profile disposed thereon and the sleeve has a stator profile disposed on the inside to cooperate with the rotor profile to force the sleeve to rotate and orbit around the central member as fluid flows from the passageway claim 4 , through the outlet in the central member claim 4 , between the central member and the sleeve and out of the exhaust port.6. The method of wherein the downhole tool further comprises a wobble joint assembly disposed adjacent to one end of the central member.7. The method of wherein the wobble joint assembly includes a first spherical element supported by the sleeve and a second spherical element disposed on one end of the central member.8. The method of wherein the wobble joint assembly further includes a first transition sleeve disposed around the ...

SHEAR COUPLING FOR SUCKER ROD STRING

The present disclosure relates, according to some embodiments, to a shear pin including a cylindrical shape positioned along a vertical axis having a first end having a common diameter with a second end; the first end and containing a first clutch at a point along the vertical axis that is furthest from the second end, the first clutch containing one of a recessing shape and a protruding shape; (c) the second end containing a second clutch at a point along the vertical axis that is furthest from the first end, the second clutch containing one of a recessing shape and a protruding shape; and (d) the curved portion including a diameter that is largest where the curved portion connects to each of the first end and the second end and then narrows along the curved portion, forming a curve that culminates at a neck where the diameter is smallest. 1. A shear pin configured to threadably connect within a shear coupling and to provide a point of failure for a sucker rod string , the shear pin comprising:(a) a cylindrical shape positioned along a vertical axis having a first end positioned at a top of the vertical axis and a second end positioned at a bottom of the vertical axis and having a curved portion connecting the first end to the second end; (i) a set of first threads on an outer circumference of the first end, the set of first threads having a first handedness and configured to threadably connect within the shear coupling; and', '(ii) a first clutch at a point along the vertical axis that is furthest from the second end, the first clutch comprising one of a recessing shape and a protruding shape;, '(b) the first end having a common diameter with the second end and comprising (i) a set of second threads on an outer circumference of the second end, the set of second threads having an opposite handedness from the set of first threads and configured to threadably connect within the shear coupling; and', '(ii) a second clutch at a point along the vertical axis that is ...

Connector assembly for a drilling apparatus

A connector assembly ( 10 ) for use with a drilling apparatus, comprises an input connector unit ( 12 ) which is connectable to a drill motor, an output connector unit ( 14 ) which is connectable to a drill pipe string and a number of shock absorption elements ( 16 ). The input and output connector units ( 14 ), ( 16 ) include top and bottom carrier plates ( 26 ) and ( 31 ), respectively. The shock absorption elements ( 16 ) are arranged adjacent one another between the carrier plates providing for absorption of both axial and rotational shock forces transmitted between the drill motor and the drill string. The connector assembly includes elongate link elements ( 70 ) extending between the top and bottom carrier plates which prevent separation of the carrier plates beyond a predetermined separation spacing limit.

SHANK ADAPTOR WITH REINFORCED FLUSHING SLOT

A rock drilling shank adaptor includes an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The adaptor wall at the region of the entry hole is reinforced such that an internal diameter of the flushing bore at the reinforced region is less than an internal diameter of the bore at a position axially beyond the reinforced region. 1. A rock drilling shank adaptor comprising:an elongate body having a first end arranged to be positioned towards a piston and a second end arranged to be positioned towards a drill string;the body having an axially extending internal bore to allow passage of a flushing fluid to the drill string via the second end;not more than two flush holes extending radially through the body to the internal bore; anda cross sectional area of the body at an axially reinforced region at the flush holes being equal to or greater than a cross sectional area of the body at an axial position of the internal bore axially beyond the reinforced region.2. The adaptor as claimed in claim 1 , wherein the reinforced region extends axially at either side or at least to one side of the flush holes such that a cross sectional area of the body to at least one axial side of the flush holes is greater than the cross sectional area of the body at the a position of the internal bore axially beyond the reinforced region.3. The adaptor as claimed in claim 2 , wherein a wall thickness of the body at the reinforced region is greater than a wall thickness of the body at the position axially beyond the reinforced region.4. The adaptor as claimed in claim 1 , wherein an axial length of the reinforced region is in the range 2% to 20% of a total axial length of the adaptor.5. The adaptor as claimed in claim 4 , wherein the range is 4% to 15%.6. The adaptor as claimed in claim 1 , wherein the cross sectional area of the body at an axial position of the flush holes is in the range 0% to 50% ...

FLOAT EQUIPMENT

There is provided a float equipment attachment assembly comprising: a float equipment for mounting to a tubing string, the float equipment comprising a tubular body and a plurality of gripping arms extending longitudinally away from the tubular body arranged to deflect radially inwards; and, an attachment sleeve, wherein the inner diameter of the attachment sleeve is tapered to form a conical abutment portion, wherein when the attachment sleeve and float equipment are arranged axially around the tubing string and pressed together the gripping arms are deflected radially inward by the conical abutment portion to grip the tubing string to mount the float equipment to the tubing string. 1. A float equipment attachment assembly comprising:a float equipment for mounting to a tubing string, the float equipment comprising a tubular body and a plurality of gripping arms extending longitudinally away from the tubular body arranged to deflect radially inwards; and,an attachment sleeve, wherein the inner diameter of the attachment sleeve is tapered to form a conical abutment portion,wherein when the attachment sleeve and float equipment are arranged axially around the tubing string and pressed together the gripping arms are deflected radially inward by the conical abutment portion to grip the tubing string to mount the float equipment to the tubing string.2. A float equipment attachment assembly according to claim 1 , in which the float equipment further comprises a seal groove for retaining a seal claim 1 , the groove arranged on an inner wall of the float equipment such that a seal can be created between the float equipment and the tubing string when the float equipment is mounted on the tubing string.3. A float equipment attachment assembly according to claim 2 , in which the seal groove is annular and extends circumferentially around the inner wall of the tubular body.4. A float equipment attachment assembly according to claim 1 , in which the float equipment further ...

Horizontal Directional Drill Pipe Drive Connection With Locking Feature

The present invention is directed to a spindle assembly for connecting a drill string to a rotational drive for use in a horizontal directional drilling operation. The assembly comprises a saver sub attached to the rotational drive, and a drive chuck for connection to the drill string. The drive chuck and saver sub form a torque-transmitting connection by engaging through a seat in the saver sub and an engagement point on the drive chuck. Dowel pins may be used to rotationally lock and provide the engagement between the saver sub and the drive chuck. A collar may thread to the saver sub and cause an interference fit by engaging the drive chuck at a shoulder. 1. A torque-transmitting assembly comprising:a saver sub;a drive chuck;an internal locking mechanism that maintains the drive chuck and saver sub in rotationally-fixed relationship; anda collar that surrounds at least a portion of the saver sub and drive chuck;wherein the saver sub and the drive chuck are in torque-transmitting engagement only at the internal locking mechanism and the collar.2. The assembly of wherein the internal locking mechanism comprises at least one dowel pin.3. The assembly of wherein the drive chuck defines at least one depression for placement of the at least one dowel pin.4. The assembly of wherein the internal locking mechanism comprises six dowel pins.5. The assembly of wherein the at least one dowel pin is characterized by a circular cross-section.6. The assembly of claim 1 , the saver sub and the drive chuck each having a rim in which a plurality of concavities are formed.7. The assembly of in which the plural concavities in one rim are alignable in one-to-one face-to-face correspondence with the plural concavities in the other rim.8. The assembly of in which the internal locking mechanism comprises a plurality of dowel pins positionable between the plural concavities of the saver sub and the plural concavities of the drive chuck.9. The assembly of wherein each of the plural dowel ...

Connection System for Subsea Connection of a Subsea Umbilical to a Subsea Appliance

A connection system for subsea connection of a subsea umbilical to a subsea appliance, the system comprising a termination box fixed to the umbilical; a first coupling part mounted to the termination box; a second coupling part; a connection unit, to which the termination box is slidably mounted; and a landing unit, which has a fixed position in relation to the second coupling part. Guide members are provided on the connection unit and the landing unit for guiding the connection unit into a correct position in relation to the landing unit when the connection unit is lowered downwards into contact with the landing unit. The termination box is displaceable axially forwards in relation to the connection unit by means of an actuating unit so as to bring the first coupling part into contact with the second coupling part. 1. A connection system for subsea connection of a first subsea umbilical to a subsea appliance in the form of a second subsea umbilical or an umbilical termination assembly , wherein the first subsea umbilical and the subsea appliance comprise several fluid conduits , the connection system comprising:a termination box fixed to an end section of the first subsea umbilical, the termination box comprising a front end and an opposite rear end, wherein the first subsea umbilical extends through an opening at the rear end of the termination box;a first umbilical coupling part mounted to the termination box at the front end thereof, this coupling part comprising several first coupling members, each of which being connected to one of the fluid conduits of the first subsea umbilical;a second umbilical coupling part which is connectable to the first umbilical coupling part and comprises several second coupling members, each of which being connected to one of the fluid conduits of the subsea appliance and being configured to engage with one of the first coupling members when the first umbilical coupling part and the second umbilical coupling part are connected to ...

SHANK ADAPTOR WITH STRENGTHENED FLUSHING HOLE

A rock drilling shank adaptor has at least one flush hole extending radially through the body of the adaptor in communication with an axially extending internal bore. The flush hole in a direction from an external side to an internal side includes a surface at a rearward region that is curved at least at a radially inner portion to extend in an axial direction towards a forwardmost end of the adaptor to increase the resistance of the adaptor to stress concentrations whilst achieving a desired flow rate of flushing fluid flow into the internal bore. 1. A rock drilling shank adaptor comprising:an elongate body having a first end arranged to be positioned towards a piston and a second end arranged to be positioned towards a drill string, the body including an axially extending internal bore arranged to allow passage of a flushing fluid to the drill string via the second end; anda flush hole extending radially through the body to the internal bore, the hole having an axially forward region positioned closer to the second end than an axially rearward region positioned closer to the first end and having a radially external side positioned at an external surface of the adaptor and a radially internal side positioned at the internal bore, the external and internal sides being coupled via a generally radially extending surface that defines the flush hole extending through the body, the flush hole at the axially rearward region being reinforced relative to the axially forward region in that in the radial direction from the external side to the internal side, the surface at the rearward region at least at a radially inner portion being curved or aligned transverse relative to a radially innermost portion of the surface of the hole at the axially forward region in the radial direction such that the surface of the rearward region at the internal side is positioned axially closer to the second end than the surface of the rearward region at the external side.2. The adaptor as ...

Cam Indexing Apparatus

An indexing apparatus for use with a downhole tool may include a tubular body and a mandrel. The tubular body may have a first end and a second end. The tubular body may also have a plurality of body detents on the second end of the tubular body and a recess in a surface of the tubular body. The mandrel may include a plurality of mandrel detents on a surface of the mandrel. The mandrel detents may be sized and shaped to engage with the body detents on the second end of the tubular body. The indexing apparatus may also include a cam sized to be received in the recess of the surface of the tubular body and a spring coupled to the first end of the tubular body. 1. An indexing apparatus comprising: a first end and a second end;', 'a plurality of body detents on the second end of the tubular body; and', 'a recess in a surface of the tubular body;, 'a tubular body comprisinga mandrel comprising a plurality of mandrel detents on a surface of the mandrel, each mandrel detent of the plurality of mandrel detents being sized and shaped to engage with a body detent of the plurality of body detents on the second end of the tubular body;a cam sized to be received in the recess of the surface of the tubular body; anda spring coupled to the first end of the tubular body.2. The indexing apparatus of claim 1 , further comprising a piston positioned at an end of the mandrel for applying a force to the end of the mandrel.3. The indexing apparatus of claim 1 , wherein the cam is fixed to a housing of a tubing string in which the indexing apparatus is positioned.4. The indexing apparatus of claim 1 , wherein the body detents and the mandrel detents are helically cut.5. The indexing apparatus of claim 1 , wherein the indexing apparatus has a length that is between approximately 1 foot and approximately 4 feet.6. The indexing apparatus of claim 1 , wherein the mandrel is movable axially towards the tubular body in response to a force being applied on an end of the mandrel.7. The indexing ...

CONNECTOR SYSTEM

A system including a connector system configured to couple a first tubular to a second tubular, including a sleeve configured to couple to an exterior surface of the first tubular, wherein the sleeve comprises a coupling feature, a lock ring configured to couple to the exterior surface of the second tubular and radially engage the coupling feature on the sleeve, and a support ring configured to energize the lock ring into engagement with the sleeve. 1. A system , comprising: a sleeve configured to couple to an exterior surface of the first tubular, wherein the sleeve comprises a coupling feature;', 'a lock ring configured to couple to the exterior surface of the second tubular and radially engage the coupling feature on the sleeve; and', 'a support ring configured to energize the lock ring into engagement with the sleeve., 'a connector system configured to couple a first tubular to a second tubular, comprising2. The system of claim 1 , wherein the lock ring comprises one or more protrusions configured to engage the sleeve.3. The system of claim 1 , wherein the coupling feature comprises one or more grooves configured to receive the lock ring.4. The system of claim 1 , wherein the lock ring rests within an annular groove on the second tubular.5. The system of claim 1 , wherein the sleeve comprises a first radial aperture that enables the tool to couple to the sleeve.6. The system of claim 5 , wherein the sleeve comprises a second radial aperture that enables the tool to extend through the sleeve and couple to the support ring.7. The system of claim 1 , wherein the sleeve and the first tubular are a one-piece structure.8. The system of claim 1 , wherein the support ring comprises a first angled surface and the lock ring comprises a second angled surface claim 1 , and the first and second angled surfaces form an angled interface.9. The system of claim 1 , wherein the coupling feature comprises first threads and the lock ring comprises second threads claim 1 , and the ...

SUBSEA CASING DRILLING SYSTEM

In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit. 1. A casing drilling system , comprising:a casing;a drilling member coupled to the casing;a retrievable motor releasably coupled to the casing and includes a power section configured to rotate the drilling member relative to the casing; and a coupling attached to the drilling member; and', 'a retractable dog configured to couple or decouple the output shaft to the coupling., 'a releasable coupling assembly for coupling an output shaft of the motor to the drilling member, wherein the releasable coupling assembly includes2. The system of claim 1 , wherein the motor includes a rotating portion and non-rotating housing claim 1 , wherein the power section comprises an annular area between the rotating portion and a non-rotating portion.3. The system of claim 2 , wherein the motor includes an arcuate recess formed in non-rotating housing claim 2 , wherein a ball received at an end of the arcuate recess prevents relative rotation between the rotating portion and the non-rotating housing.4. The system of claim 1 , further comprising a cement diverter for diverting cement from the power section of the drilling motor.5. The system of claim 1 , wherein the releasable coupling assembly further comprising a biased sleeve configured to retain the dog in a retracted position.6. The system of claim 1 , further comprising a locking mechanism to prevent relative rotation between drilling member and the casing.7. The system of claim 6 , wherein the locking mechanism includes:a locking segment attached to the casing;a first set of teeth formed on the locking segment; anda second set of teeth formed on the drilling member, wherein ...

On-Off Tool for Sucker Rod String

An on-off tool for latching a sucker rod to a plunger rod has a housing, a pawl, guide pines, and a key. One end of the housing is connected to the sucker rod, and an interior of the housing defines a key slot terminating at a seat inside the interior. The pawl is disposed in the interior of the housing and is biased longitudinally preferably by disc springs. Bearings in the form of elongate pins are engaged between the pawl and the housing and dispose longitudinally in slots to guiding longitudinal movement of the pawl in the interior and preventing rotation of the pawl. The key has a head at its distal end that is passable through the key slot, interlockable with the pawl, and seatable on the seat. The key's head preferably defines a waist thereabout to provide the head with greater load bearing surface to engage the housing's seat. 1. A tool for latching a sucker rod to a plunger , the tool comprising:a housing having first and seconds ends and defining an interior, the interior defining at least one longitudinal slot, the first end connecting to the sucker rod, the interior defining a key slot at the second end of the housing, the key slot terminating at a seat inside the interior;a pawl disposed in the interior of the housing and biased longitudinally therein away from the first end toward the seat, the pawl defining a longitudinal side pocket;at least one bearing being an elongate pin and being engaged between the longitudinal side pocket of the pawl and longitudinal slot of the housing, the at least one pin guiding longitudinal movement of the pawl in the interior and preventing rotation of the pawl in the interior; anda key having distal and proximal ends, the proximal end connecting to the plunger, the distal end having a head extending on a stem from the proximal end, the head passable through the key slot, interlockable with the pawl, and seatable on the seat.2. The tool of claim 1 , wherein the housing comprises at least one biasing element disposed in ...

DOWNHOLE TOOL RETAINER AND GUIDE RING

A retainer and guide ring includes a first ring half and a second ring half that when placed adjacent to one another forms a complete ring. The retainer and guide ring also includes a kerf that is formed between ends of each of the first and second ring halves, which ranges from about zero inches to about 0.010 inches. In some exemplary embodiments, the retainer and guide ring is formed by obtaining two identical rings and making a cut along an edge of the diameter on each ring thereby forming a larger ring arc and a smaller ring arc for each of the rings. The two larger ring arcs are used to form the retainer and guide ring. In another exemplary embodiment, the retainer and guide ring is formed by obtaining a single ring and making a cut along the diameter. 1. A multi-component downhole tool , comprising:an upper cylindrical casing having a channel extending through the casing;a lower component movably coupled to the upper cylindrical casing, the lower component comprising an undercut formed circumferentially around a portion of the upper portion of the lower component; anda split retainer and guide ring being coupled around the undercut, the split retainer and guide ring comprising a first ring half and a second ring half,wherein a kerf is formed between the first ring half and the second ring half, the kerf ranging from about zero inches to about 0.010 inches.2. The multi-component downhole tool of claim 1 , wherein the kerf ranges from about zero inches to about 0.005 inches.3. The multi-component downhole tool of claim 1 , wherein the kerf ranges from about zero inches to about 0.002 inches.4. The multi-component downhole tool of claim 1 , wherein the split retainer and guide ring remains stationary with respect to the casing and is securely coupled around the undercut portion claim 1 , a portion of the undercut portion continuously maintaining contact with the internal surface of the guide ring as the undercut portion moves axially or rotationally within the ...

Bearing Assembly For Drilling A Subterranean Formation

Various embodiments disclosed relate to bearing assembly for drilling a subterranean formation and methods of using the same. In various embodiments, the present invention provides a method of drilling a subterranean formation. The method includes flowing a drilling fluid through a drill string disposed in the subterranean formation, with the drill string including a bottom hole assembly including a bearing assembly including a low flow bearing. The method includes flowing a first part of the drilling fluid into contact with the low flow bearing, while simultaneously flowing a second part of the drilling fluid through a bypass channel around the low flow bearing. The method also includes discharging the first and second part of the drilling fluid between the bottom hole assembly and the subterranean formation. 1. A method of drilling a subterranean formation , the method comprising:flowing a drilling fluid through a drill string disposed in the subterranean formation, the drill string comprising a bottom hole assembly comprising a bearing assembly comprising a low flow bearing;flowing a first part of the drilling fluid into contact with the low flow bearing, while simultaneously flowing a second part of the drilling fluid through a bypass channel around the low flow bearing; anddischarging the first and second part of the drilling fluid between the bottom hole assembly and the subterranean formation.2. The method of claim 1 , wherein flowing the first part of the drilling fluid into contact with the low flow bearing comprises cooling the low flow bearing with the first part of the drilling fluid claim 1 , lubricating the low flow bearing with the first part of the drilling fluid claim 1 , or a combination thereof.3. The method of claim 1 , wherein the low flow bearing is a radial bearing claim 1 , a thrust bearing claim 1 , an on-bottom bearing claim 1 , an off-bottom bearing claim 1 , or a combination thereof.4. The method of claim 1 , wherein the low flow bearing ...

CONNECTOR

A connector comprises a first coupling part having a flat surface with a shaft projecting therefrom; and a second coupling part having a corresponding flat surface and a hole, such that the flat surfaces may be in abutment when the shaft is inserted into the hole and the first coupling part is positioned transverse to the second coupling part. The first coupling part is movable relative to the second coupling part from a position in which the shaft is inserted into the hole to a position in which the coupling parts are held so as to be inseparable by the shaft being captured inside the hole. The first coupling part is rotatable relative to the second coupling part about the shaft when the first coupling part is in the position in which the coupling parts are held so as to be inseparable. The first coupling part and the second coupling part are provided with load transference surfaces arranged to transfer load forces between the coupling members when the first coupling part is rotated relative to the second coupling part to an engaged position. 1. A connector comprising:a first coupling part having a flat surface with a shaft projecting therefrom;a second coupling part having a corresponding flat surface and a hole, such that the flat surfaces may be in abutment when the shaft is inserted into the hole and the first coupling part is positioned transverse to the second coupling part;wherein the first coupling part is movable relative to the second coupling part from a position in which the shaft is inserted into the hole to a position in which the coupling parts are held so as to be inseparable by the shaft being captured inside the hole;wherein the first coupling part is rotatable relative to the second coupling part about the shaft when the first coupling part is in the position in which the coupling parts are held so as to be inseparable;wherein the first coupling part and the second coupling part are provided with load transference surfaces arranged to transfer ...

MANOEUVRING MEMBER

Manoeuvring member () provided with a frame () comprising an axial-symmetrical tubular portion () internally delimited by an inner cylindrical mantle () extending in a given direction (D); the frame () being provided with a first end () and with a second end (); a blocking device () being associated with the second end (); the blocking device () comprising at least one pin () carried by the second end () in a radially movable manner between a back position (P), where the pin () is arranged flush with the cylindrical mantle (), and a forward position (P), where the pin () projects inside the cylindrical mantel (); the blocking device () being of the hydraulic type. 111010010210121414030143032143210223210230. Manoeuvring member () provided with a frame () comprising an axial-symmetrical tubular portion () internally delimited by a cylindrical mantle () extending in a given direction (D); said frame () being provided with a first end () , so designed as to interface an actuating rotary member (A) , and with a second end () , provided with coupling means () so designed as to couple in a bayonet-manner; blocking means () being associated with said second end (); said blocking means () comprising at least one pin () carried in a radially movable manner by said second end () between a back position (PI) , where said pin () is arranged flush with said cylindrical mantle () , and a forward position (P) , where said pin () projects inside said cylindrical mantel (); characterized in that said blocking means () are hydraulic means.26030. Member according to claim 1 , characterized by comprising a hydraulic actuating group () in hydraulic communication with said blocking means ().312122124100122124. Member according to claim 2 , characterized in that said first end () is modular and provided with a plate () and with a flange () delimiting said tubular portion () at the top; said plate () and said flange () being connected together in a releasable and selectively fixed manner ...

RECEPTACLE FOR TUBULAR DRILLING TOOLS HAVING DIFFERENT DIAMETERS

The invention relates to a tool holder on a drill transmission for tubular drilling tools having at least two different diameters, wherein the holder is equipped with a hollow-cylindrical recess and with at least one radially oriented locking bolt which is installed in the wall of the hollow-cylindrical recess and which engages in a corresponding opening in the drilling tool, wherein there is at least one further hollow-cylindrical recess which is complementary to one of the different drilling tools. 2. Tool receptacle according to claim 1 , characterized in thatinto a first hollow cylindrical recess with large internal diameter there can be inserted a spacer ring,which has a hollow cylindrical recess with small internal diameter and, 'the locking bolts are extended to the extent that they project through the passages of the spacer ring into the openings of a drilling tool with small diameter.', 'contains passages for the locking bolts and'}3. Tool receptacle according to claim 2 , characterized in thata first row of locks comprises short locking bolts, which can be inserted into the openings of a drilling tool with large diameter anda second row of locks comprises long locking bolts,which can be pushed through the passages into the openings of a drilling tool with small diameter andwhich can be drawn back into the wall of the first hollow cylindrical receptacle.4. Tool receptacle according to claim 2 , characterized in that the locking boltscan be fixed by the locks in a first operating position, in which they only project into the openings of a drilling tool with large diameter and additionallycan be fixed by the locks in a second operating position, in which they only project into the openings of a drilling tool with small diameter.5. Tool receptacle according to claim 1 , characterized in that the spacer ring consists of segments claim 1 ,which are fastened on the tool receptacle so as to be pivotable andwhich are pivotable out of the first hollow cylindrical ...

TANDEM SEAL ADAPTER, ADAPTER ASSEMBLY WITH TANDEM SEAL ADAPTER, AND WELLBORE TOOL STRING WITH ADAPTER ASSEMBLY

An adapter assembly for use with a wellbore tool string may include a tandem seal adapter (TSA) comprising a TSA body extending along an axial direction and a collar comprising a collar body formed in a substantially annular shape and extending in the axial direction. The collar may be provided outward from the TSA in a radial direction substantially perpendicular to the axial direction. The TSA body and the collar body may overlap in the axial direction. 1. An adapter assembly for use with a wellbore tool string , the adapter assembly comprising: a TSA body extending along an axial direction; and', 'a TSA rib extending radially outward from the TSA body in a radial direction substantially perpendicular to the axial direction; and, 'a tandem seal adapter (TSA) comprising a collar body formed in a substantially annular shape and extending in the axial direction, the collar being provided outward from the TSA in the radial direction; and', 'a collar rib extending radially inward from the collar body in the radial direction;, 'a collar comprisingwherein the TSA body and the collar body overlap in the axial direction;the TSA rib and the collar rib overlap in the radial direction; a first TSA rib wall extending radially outward from the TSA body;', 'a second TSA rib wall extending radially outward from the TSA body, the second TSA rib wall being spaced apart from the first TSA rib wall in the axial direction;', 'a first TSA rib step surface extending in the axial direction from the first TSA rib wall toward the second TSA rib wall;', 'a second TSA rib step surface extending in the axial direction from the second TSA rib wall toward the first TSA rib wall; and', 'a third TSA rib wall extending in the radial direction from the first TSA rib step surface to the second TSA rib step surface; and, 'the TSA rib comprisesthe collar rib and the third TSA rib wall overlap in the radial direction.2. The adapter assembly of claim 1 , wherein;the TSA further comprises a first seal ...

Adjustable Bent Drilling Tool Having in situ Drilling Direction Change Capability

An adjustable bent drilling tool capable of changing in situ drilling direction to facilitate horizontal drilling. The drilling tool may be controlled from the surface and eliminates the need to bring the tool to the surface for reconfiguration. In one embodiment, the drilling tool utilizes a communications module to communicate with upstream sections of the tool. The communications module is connected to a programmable electronic control module which controls an electric motor. A hydraulic valve assembly follows the control module, which receives input signals and controls a pilot piston between two fixed points of a mid-assembly typically located adjacent to and downstream of the hydraulic valve assembly on the drill tool. A lower assembly is attached to the drill tool immediately following the mid-assembly, and provides both a safety release sub-assembly as well as a bendable sub-assembly which directs the adjustable drill tool to change drilling angle and direction. 1. A coupling assembly for non-rotatably coupling two sections of a drill tool , comprising:a first cylindrical section having an annular cavity located concentrically within the first section, and a slot adjacent a first end of the first section;a second cylindrical section having a circumferential groove disposed coaxially on the outer surface of the second section and adjacent a first annular end of the second section, the first end of the second section having a diameter smaller than the diameter of the cavity;a pin hole located in the circumferential groove; and,a semi-circular key, the key having a pin located at an end thereto;wherein the first end of the second section is inserted into the annular cavity of the first section such that the pin hole is aligned with the slot, the semi-circular key used to operatively couple the first and second cylindrical sections together.2. The coupling assembly of wherein the pin of the key is inserted into the pin hole and the second section is rotated ...

DRILL PIPE WITH REPLACEABLE TOOL JOINTS

A drill string including tool assembly. The tool assembly includes a tool joint adapter and a tool joint coupled to the tool joint adapter through a faceted pin. The faceted pin includes a faceted fitting having a fitting face. The drill string includes a locking pin that extends through the tool joint adapter and tool joint. The locking pin extends through a locking pin groove of the fitting face. The locking pin locks the tool joint adapter and tool joint together. 1. A drill pipe assembly , comprising:a drill pipe body;first and second tool joint adapters coupled to the drill pipe body;a replaceable pin tool joint coupled to the first tool joint adapter; anda replaceable box tool joint coupled to the second tool joint adapter;wherein the first and second tool joint adapters are welded to the drill pipe body, andwherein the replaceable pin end tool joint and the replaceable box end tool joint are detachably coupled to the drill pipe body.2. A tool assembly , comprising:a tool joint adapter;a tool joint coupled to the tool joint adapter through a faceted pin, wherein the faceted pin includes a faceted fitting having a fitting face;a dowel pin which extends through the tool joint adapter and tool joint, wherein the dowel pin extends through a dowel pin groove of the fitting face.3. The assembly of claim 2 , wherein the tool joint and tool joint adapter are coupled together through a faceted socket engaged with the faceted pin.4. The assembly of claim 2 , wherein the dowel pin extends through a dowel pin channel which faces the dowel pin groove.5. The assembly of claim 2 , wherein the faceted pin includes a sealing pin which forms a seal between the tool joint and tool joint adapter.6. The assembly of claim 2 , wherein a locking sleeve body and a second drill rod tool joint include inner and outer race regions claim 2 , respectively claim 2 , which face each other.7. The assembly of claim 2 , further including a fastener which fastens the dowel pin in the dowel pin ...

APPARATUS AND METHOD RELATING TO MANAGED PRESSURE DRILLING

The integration joint assembly includes an integration joint body () having a through bore (), the body being for connection with a riser system. The integration joint assembly permits a tubular work string () to pass there through such that there is an annulus created between the inner through bore () of the integration joint body () and the outer surface of the tubular work string (). The integration joint body () can also include at least two () and more preferably three sealing devices () within its through bore (). A method of drilling is also described as including the steps of installing an integration joint assembly in a riser string and running a tubular work string () through the through bore () thereof.

ENHANCEMENTS OF MECHANICAL CONNECTOR TECHNOLOGY

A mechanical connector provided with a thread on substantially matching frustoconical surfaces extending between two sets of metal nipple seals is upgraded with an ability to transfer torque structurally in addition to friction, which is solely utilized to transfer torque in traditional connectors. Other than zero-pitch angle threads can be also effective in novel connector configurations. High torsional and bending load capacities are achieved structurally by use of: splines, dog-clutch teeth, fitted pins, keys, and/or interlocked thread systems, all used in isolation or in arbitrary combinations. Novel tapering of box and pin surfaces, fin and/or sandwich stiffeners and/or fairings, are provided to optimize loading in all regions of connectors and to meet specific design objectives. Thread angle mismatching between box and pin threads is introduced. Optionally assembly/disassembly fluids that solidify at least in some ranges of design temperatures can be used. 2. The mechanical connector provided with the zero-pitch angle thread on the substantially matching frustoconical surfaces of the box and the pin according to claim 1 , whereas at least one of said box or said pin is made of at least one of:a high strength steel,or a corrosion resistant alloy,or a titanium alloy,or an aluminum alloy,or a magnesium alloy,or a nickel based alloy,or a non-metallic material including a plastic material,or at least one of said box or said pin utilizes at least one of a lining or a cladding or a weld overlay.3. The mechanical connector provided with the zero-pitch angle thread on the substantially matching frustoconical surfaces of the box and the pin according to claim 1 , whereas at least one of said box or said pin features a plurality of grooves claim 1 , including a single groove claim 1 , located in an area adjacent to a metal nipple seal claim 1 , said plurality of grooves located in said area adjacent to said metal nipple seal increasing locally the flexibility of said box ...

Ground drilling device for cable-guided drilling, method for cable-guided ground drilling , and use during cable-guided drilling

A ground drilling device for cable-guided drilling comprising a drive for connecting and/or moving rod sections of a drill string along a drill string axis, wherein a cable reserve for receiving a cable with a length of at least two rod sections is provided and a contact device for electrical contacting of one end of the cable of the cable reserve is provided.

FULL CONTACT CONSTANT VELOCITY TRANSMISSION ASSEMBLY

A CV joint for a BHA includes an inner driven rod, an outer drive coupling, and a thrust plate. The inner driven rod includes at least one lobe extending radially therefrom. The outer drive coupling includes a keyway formed therein corresponding to and adapted to receive each lobe. A thrust plate is positioned between at least one side of each lobe and the corresponding keyway. The thrust plate may allow for the reduction of point or line stress loading on the lobe and keyway. 1. A full contact constant velocity (CV) joint comprising:an inner driven rod, the inner driven rod having at least one lobe extending radially therefrom;an outer drive coupling, the outer drive coupling having a keyway formed therein corresponding to and adapted to receive each lobe; anda thrust plate positioned between at least one side of each lobe and the corresponding keyway.2. The full contact CV joint of claim 1 , wherein each lobe is generally box shaped claim 1 , each lobe having a curved top profile and first and second curved side profile claim 1 , the curved top profile and the first curved side profile adapted to remain in continuous contact with the keyway as the inner driven rod pivots with respect to the outer drive coupling claim 1 , and the second curved side profile adapted to contact a corresponding curved profile of each thrust plate claim 1 , such that the thrust plate transfers loading between the lobe and the keyway across a portion of the curved side profile.3. The full contact CV joint of claim 1 , wherein each lobe is generally round claim 1 , each lobe having a curved top profile and first and second curved side profile claim 1 , the curved top profile and the first curved side profile adapted to remain in continuous contact with the keyway as the inner driven rod pivots with respect to the outer drive coupling claim 1 , and the second curved side profile adapted to contact a corresponding curved profile of each thrust plate claim 1 , such that the thrust plate ...

DOWN-HOLE MOTOR UNIVERSAL JOINT ASSEMBLY

A universal joint (U-joint) assembly transmits torque from a drive component to a driven component across an articulating joint. The U-joint assembly includes male and female U-joint members, a central ball joint, and a retaining device configured to secure the assembly in an assembled configuration. The female U-joint member includes a cavity extending into a receptacle end thereof. The cavity terminates in a circular receptacle and includes a plurality of rectangular channels extending radially outward from the cavity at equal intervals, each channel defined by three planar drive surfaces. The male U-joint member has a drive end with a plurality of corresponding rectangular extensions protruding from an outer periphery of the drive end, each extension including a plurality of axial angular surfaces. When assembled, each of the angular surfaces of the drive end opposes a corresponding one of the drive surfaces of the cavity. Other embodiments are also disclosed. 110-. (canceled)11. A transmission assembly for transmitting torque across an angular connection between a torsional drive component and a torsionally driven component , the transmission assembly comprising:a flexible shaft operably coupled with the torsional drive component; andno more than one universal joint (U-joint) assembly operably coupled between the flexible shaft and the driven component, the U-joint assembly comprising a female U-joint member coupled with the torsionally driven component and defining a longitudinal axis, a central ball seat seated within the female U-joint member, and a male U-joint member coupled with the flexible shaft and axially mounted about the central ball seat and within the female U-joint member in a manner that transmits a torsional force applied by the torsional drive component upon the male U-joint member to the female U-joint member in a perpendicular direction to the longitudinal axis.12. The transmission assembly of claim 11 , wherein:the female U-joint member ...

Directional drilling system and methods

A directional drilling steering system is configured to direct a tubular sleeve arranged at the bottom of a drill string adjacent the drill bit at a selected tilt angle with respect to the longitudinal axis of the uphole drill string and at a selected azimuth. Tilt angle can be achieved by axial movement of one or more pistons in engagement with the downhole tubular sleeve. Azimuth can be achieved by axial movement of the pistons or by rotation of the drill string. The movement of the downhole sleeve along the deviated path causes movement of the drill bit shaft and the drill bit coupled thereto.

Rotor Catch Assembly

A catch assembly is provided for a downhole motor assembly of a drilling system. The catch assembly may include a catch basket that may be coupled to a saver sub. The saver sub may be coupled to a stator tube housing a rotor of a downhole motor. The rotor knob may be coupled to the rotor and include a flange that may be positioned in the catch basket. The flange may be positioned up-hole of an internal shoulder of the catch basket. Subsequent to a connection failure in or near the stator tube, the flange may engage the internal shoulder of the catch basket to prevent the rotor from falling downhole. 1. A catch assembly , comprising:a rotor knob including a flange and a knob body that has a downhole threaded end couplable to an end portion of a rotor; and an uphole threaded end couplable to the saver sub;', 'an internal shoulder positionable uphole of the end portion of the rotor and downhole of a connection point between the saver sub and the stator tube; and', 'a catch basket body defining a through-bore extending from the uphole threaded end to the internal shoulder, at least one portion of the through-bore sized to receive the flange of the rotor knob., 'a catch basket positionable internal to a saver sub and a stator tube, the catch basket including2. The catch assembly of claim 1 , wherein the internal shoulder is sized to prevent a loss of the rotor downhole by interfering with the flange of the rotor knob.3. The catch assembly of claim 1 , wherein the uphole threaded end is positionable uphole of the connection point between the saver sub and the stator tube to prevent a loss of the rotor downhole subsequent to the stator tube separating from the saver sub.4. The catch assembly of claim 1 , wherein the flange is positionable uphole of the internal shoulder.5. The catch assembly of claim 1 , wherein the flange includes grooves sized to engage a wrench for coupling the flange to the end portion of the rotor.6. The catch assembly of claim 1 , wherein the ...

A TOP DRIVE WELL DRILLING INSTALLATION

The present invention relates to a top drive well drilling installation comprising a trolley guided along one or more vertical rails along the drilling tower, which trolley is provided with a support frame supporting the top drive unit and a rotating head-clamp. The rotating headclamp comprises an open-centered rotary body defining a pipe passage; a thrust bearing supporting the rotary body; and multiple mobile pipe retainers supported by the rotary body providing an operative and a non-operative position allowing passage of a pipe and engagement below a shoulder of a pipe of the drill string so as to suspend said drill string therefrom. At least the tubular stem is vertically movable relative to the rotating headclamp between an upper remote position allowing the engagement of a pipe of the drill string by the rotating headclamp and a lower connection position allowing the attachment of the tubular stem with the pipe. 1. A top drive well drilling installation comprising:a drilling tower;a top drive unit including a tubular stem which is to be connected to an upper end of a drill string for rotation therewith about an axis of the drill string, and a motor adapted to rotate the tubular stem and thereby the connected drill string;one or more vertical rails supported by the drilling tower;a trolley guided along said one or more vertical rails, which trolley is provided with a support frame supporting the top drive unit, at least so as to absorb reaction torque from the motor of the top drive unit;a hoisting device for moving the trolley up and down; and an open-centered rotary body defining a pipe passage in line with a drill string axis to allow passage of a pipe of the drill string;', 'a thrust bearing supporting the rotary body, allowing rotation thereof; and', 'multiple mobile pipe retainers supported by the rotary body so as to provide an operative and a non-operative position of the rotating headclamp, the pipe retainers being adapted to—in the non-operative ...

ROD COUPLER AND COUPLED ROD ASSEMBLY

A coupler for a drill rod includes a body defining an inner bore extending along a longitudinal axis, at least a portion of the inner bore defining a non-circular profile having a plurality of flats including a first pair of adjacent flats defining a vertex therebetween. A cross aperture of the body has a central axis that is perpendicular to and offset from the longitudinal axis. A radially-innermost portion of the cross aperture extends perpendicular to a reference line extending from the longitudinal axis to the vertex.

CENTERING CONTROL TYPE DRILL SYSTEM FOR OFFSHORE STRUCTURE

Disclosed herein is a centering control type drill system for offshore structures. The centering control type drill system is installed to be elevated in a derrick for offshore drilling and rotates a drill string. The centering control type drill system includes a motor providing rotational force for offshore drilling, a gear box unit placed below the motor and increasing the rotational force of the motor, a main rotary shaft placed below the gear box unit and rotating the drill string; an intermediate bracket provided to the gear box unit, a dolly bracket disposed to be elevated in the derrick, a first dolly arm retractably coupled between the dolly bracket and the intermediate bracket by a hinge, a second dolly arm retractably coupled between the dolly bracket and the intermediate bracket by a hinge, and a cylinder rotating the second dolly arm about the hinge. 1. A centering control type drill system for offshore structures , which is installed to be elevated in a derrick for offshore drilling and rotates a drill string , the centering control type drill system comprising:a motor providing a rotational force for offshore drilling;a gearbox unit placed below the motor and increasing rotational force of the motor;a main rotary shaft placed below the gearbox unit and rotating the drill string;an intermediate bracket provided to the gearbox unit;a dolly bracket disposed to be elevated in the derrick;a first dolly arm retractably coupled between the dolly bracket and the intermediate bracket by a hinge;a second dolly arm retractably coupled between the dolly bracket and the intermediate bracket by a hinge; anda cylinder rotating the second dolly arm about the hinge.2. The centering control type drill system according to claim 1 , wherein the first dolly arm comprises an upper dolly arm placed at an upper portion of the dolly bracket claim 1 , and the second dolly arm comprises a lower dolly arm placed at a lower portion of the dolly bracket.3. The centering control ...

REMOTELY OPERATED FLUID CONNECTION AND SEAL

A remotely-operated fluid connection assembly to hold higher internal pressures in larger diameters. Disclosed embodiments gain advantage from the internal work pressure to provide improved seal performance. The assembly comprises a fluid connection adapter and a fluid connection housing assembly. When the adapter enters the housing assembly: (A) locking elements on the housing assembly constrict about the adapter; and (B) at least a first seal section on the adapter sealingly contacts a first seal bore on the housing assembly. Progressive engagement of a locking ring upon the locking elements urges the locking elements to tighten against the adapter. Internal pressure encourages adapter displacement, which then further tightens the adapter against the locking elements as now restrained by the locking ring. Internal pressure further encourages the first seal section on the adapter to expand radially to tighten the contact with the first seal bore in the housing assembly. 1. A fluid connection assembly , comprising:a fluid connection adapter having first and second adapter ends, the fluid connection adapter providing in order towards the second adapter end: (a) a tapered lock engagement surface, (b) a locking element actuating section, and (c) at least a first seal section;a fluid connection housing assembly having first and second housing ends, the fluid connection housing assembly providing: (i) a retractable locking ring; (ii) a plurality of locking elements, and (iii) at least a first seal bore;wherein each locking element is disposed to constrict radially via rotation about a corresponding pivot pin provided in the fluid connection housing assembly;wherein each locking element has a locking element inner surface, a locking element outer surface and a locking element rocking surface;wherein, during entry of the second adapter end into the first housing end: (A) the locking element actuating section contacts the locking element rocking surfaces, thereby causing ...

TAPERED THREAD CONFIGURATION WITH IMPROVED DURABILITY

Underground drilling operation often requires connecting a drill tool (e.g., drill bit, backreamer, etc.) to a drill string. It is desirable to connect the drill tools to a drill string in a manner that facilitates quick and easy assembly and disassembly. Low torque coupling, commonly referred to as “torque-less” connection, can provide such functionality. The useful life and strength of such connections can be improved upon. The present disclosure provides a low torque coupling with improved strength and durability. 129-. (canceled)30. A threaded interface for use in connecting a removable down hole tool to a drill string , the threaded interface comprising:a threaded tapered section that extends between a first non-threaded portion and a second non-threaded portion, the first non-threaded portion being up hole from the second non-threaded portion, the threaded tapered section including threads thereon; andan annular stress relief notch providing a transition between the threaded tapered section and one of the first and second non-threaded portions, wherein first and second portions of the annular stress relief notch are circumferentially offset 180 degrees from one another about a longitudinal axis of the threaded interface, the first and second portions having the same notch profile and being positioned at the same axial position along the longitudinal axis.31. The threaded interface of claim 30 , wherein the annular stress relief notch has a width greater than the width of a thread on the threaded tapered section.32. The threaded interface of claim 30 , further comprising an exterior surface at a down hole end having a non-circular profile.33. The threaded interface of claim 32 , wherein a plurality of flats are provided at the exterior surface claim 32 , the flats being configured to correspond with internal flats of a collar.34. The threaded interface of claim 30 , wherein threads on the threaded tapered section are asymmetric claim 30 , and wherein a distance ...

SWIVEL

A swivel configured to rotationally decouple an upper section of a work string from a lower section of the work string. The swivel includes an upper body coupled to a lower body by a ring member and a plurality of shearable members. The lower body has a plurality of teeth members that engage a plurality of teeth members of the ring member. Rotation of the upper body is transmitted to the lower body by the ring member. The upper body is rotatable relative to the lower body when the shearable members are sheared.

DOWNHOLE FORCE GENERATING TOOL

The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool. 1. A downhole tool , the tool comprising:a central element; anda sleeve rotatably and orbitally disposed around the central element, the sleeve rotates around the central element responsive to fluid flowing through the downhole tool.2. The tool of wherein the central element includes an outlet disposed therein to permit fluid to flow from a passageway disposed through the central element to an annulus area disposed between the central element and the sleeve.3. The tool of wherein the sleeve includes an exhaust port disposed therein to permit fluid to flow from the annulus area to outside of the downhole tool.4. The tool of wherein the central element has a rotor profile disposed thereon and the sleeve has a stator profile disposed on the inside to cooperate with the rotor profile to force the sleeve to rotate and orbit around the central member as fluid flows from the passageway claim 3 , through the outlet in the central member claim 3 , between the central member and the sleeve and out of the exhaust port.5. The tool of wherein the downhole tool further comprises a wobble joint assembly disposed adjacent to one end of the central member.6. The tool of wherein the wobble joint assembly includes a first spherical element supported by the sleeve and a second spherical element disposed on one end of the central member.7. The tool of wherein the wobble joint assembly further includes a first transition sleeve disposed around the second spherical element and a second transition sleeve disposed adjacent to the first transition sleeve and around the ...

Washpipe seal assembly

A washpipe assembly includes a seal stack including at least one packing ring adapted to seal between a washpipe and the seal housing; a packing spacer ring adapted to maintain spacing between the seal housing and the washpipe, and a guide bushing ring positioned between the packing spacer ring and the washpipe. The guide bushing ring is made from a softer material than the wash pipe such that any contact therebetween will avoid damage to the washpipe. Additionally, the inclusion of the guide bushing ring may allow the packing spacer ring to be offset further from the washpipe than otherwise allowable.

Mud Motor Bearing Pack Lower End With Catch Ring

It is desirable to secure a lower end of a down hole assembly in the event of a down hole failure, such as a fractured drive shaft, enabling recovery of the bottom hole assembly and drill bit. To secure the lower end of the down hole assembly, a catch apparatus according to embodiments herein may be used, the catch apparatus including a rotating bearing having a distal end threadably coupled to a distal portion of a drive shaft. The apparatus may also include a stationary bearing having a proximal end threadably coupled to a distal end of an outer housing. A catch ring may be threadably coupled to a proximal end of the rotating bearing, the catch ring having a shoulder radially overlapping a shoulder of the stationary bearing. 1. An apparatus for securing a lower end of a down hole assembly comprising:a rotating bearing, wherein a distal end of the rotating bearing is threadably coupled to a distal portion of a drive shaft;a stationary bearing, wherein a proximal end of the stationary bearing is threadably coupled to a distal end of an outer housing; anda catch ring threadably coupled to a proximal end of the rotating bearing, wherein a shoulder of the catch ring radially overlaps a shoulder of the stationary bearing outer housing.2. The apparatus of claim 1 , wherein the shoulder of the outer housing comprises an upwardly facing shoulder disposed on a proximal end of the stationary bearing.3. The apparatus of claim 1 , wherein the shoulder of the catch ring is a downwardly facing distal shoulder.4. The apparatus of claim 1 , wherein the catch ring is configured to protrude radially outward from the rotating bearing.5. The apparatus of claim 1 , wherein the catch ring is a solid ring.6. The apparatus of claim 1 , wherein the shoulder of the outer housing is integral with the stationary bearing.7. The apparatus of claim 1 , wherein the shoulder of the outer housing comprises a ring which is separate from said stationary bearing.8. The apparatus of claim 1 , further ...

COMBINED MULTI-COUPLER FOR TOP DRIVE

In one embodiment, a coupling system for a top drive and a tool includes a housing of the top drive having a bore therethrough, an adapter of the tool, a latch member at least partially disposed within the housing and radially movable between an extended position and a retracted position, wherein the latch member is configured to longitudinally couple the housing to the adapter, and a lock member at least partially disposed within the housing and longitudinally movable relative to the housing, wherein the lock member is configured to move the latch member between the extended and the retracted positions. 1. A coupling system for a top drive and a tool , comprising:a housing of the top drive having a bore therethrough;an adapter of the tool;a latch member at least partially disposed within the housing and radially movable between an extended position and a retracted position, wherein the latch member is configured to longitudinally couple the housing to the adapter; anda lock member at least partially disposed within the housing and longitudinally movable relative to the housing, wherein the lock member is configured to move the latch member between the extended and the retracted positions.2. The coupling system of claim 1 , wherein the lock member is configured to retain the latch member in the extended position.3. The coupling system of claim 1 , wherein the adapter includes a bore configured to receive the housing.4. The coupling system of claim 1 , wherein the lock member includes a tapered surface configured to engage the latch member.5. The coupling system of claim 1 , an actuator configured to longitudinally move the lock member.6. The coupling system of claim 1 , wherein the housing has a port formed therethrough.7. The coupling system of claim 6 , wherein an actuator is at least partially disposed through the port.8. The coupling system of claim 6 , wherein the latch member is at least partially disposed in the port.9. The coupling system of claim 1 , the ...

COMBINED MULTI-COUPLER WITH LOCKING CLAMP CONNECTION FOR TOP DRIVE

In one embodiment, a coupling system for a top drive and a tool includes a drive stem of the top drive configured to transfer torque to the tool, a key disposed on the drive stem and movable to an extended position, an adapter of the tool configured to receive the drive stem, a key recess disposed on the adapter and configured to receive the key in the extended position, and a biasing member configured to bias the key towards the extended position. 1. A method for coupling a top drive to a tool , comprising:moving the tool adjacent to the top drive, the top drive including a drive stem having a key movable to an extended position and the tool including an adapter having a key recess configured to receive the key in the extended position;inserting the drive stem into the adapter; andbiasing the key towards the extended position to couple the drive stem and the adapter.2. The method of claim 1 , further comprising operating an actuator to move the key to a retracted position.3. The method of claim 1 , further comprising transferring at least one of power claim 1 , data claim 1 , electronics claim 1 , hydraulics claim 1 , and pneumatics between the drive stem and the adapter.4. The method of claim 1 , wherein biasing the key towards the extended position further comprises moving the key pivotally relative to the drive stem.5. The method of claim 1 , further comprising moving the key to a retracted position to decouple the drive stem and the adapter.6. The method of claim 5 , wherein moving the key to a retracted position further comprises:operating an actuator coupled to the key; andengaging the drive stern with a rod of the actuator.7. The method of claim 5 , wherein moving the key to a retracted position comprises:operating an actuator coupled to the drive stem; andengaging the key with a rod of the actuator.8. A coupling system for a top drive and a tool claim 5 , comprising:a drive stem of the top drive configured to transfer torque to the tool;a key disposed on ...

Drill String Rotation Brake

A rotation brake for stopping rotation of a spindle assembly on a horizontal directional drill. The rotation brake comprises a brake lock that is actuated by a cylinder and spring to interact with a non-rotating brake cap and a rotating pinion, thereby stopping rotation of the pinion. The brake lock is removed from the pinion by applying pressurized fluid to a cylinder such that a cylinder rod moves the brake lock out of a cavity between the brake cap and the pinion. Upon removing fluid pressure from the cylinder, a compressed spring moves the brake lock back to into the cavity, preventing rotation. 1. A system , comprising:a motor;a rotatable spindle;a drive train configured to rotationally couple the motor to the spindle and comprising a series of intermeshed gears; anda brake element disposed in laterally offset relationship to one of the gears and movable between a first position, out of engagement with the gear, and a second position, in engagement with the gear;in which the gear is rotatable in the first position of the brake element and is not rotatable in the second position of the brake element.2. The system of in which the spindle is tubular and further comprising a fluid supply element configured to furnish fluid to tubular interior of the spindle.3. The system of in which the shape of the brake element is complementary to the shape of at least a portion of the gear.4. The system of further comprising an actuator engageable with the brake element and configured to move the brake element between its first and second positions.5. The system of in which the actuator comprises a spring disposed in force-transmitting relationship to the brake element.6. The system of in which the actuator comprises:a chamber;a reciprocating piston disposed within the chamber;an axially reciprocating rod secured to the piston, extending out of the chamber at its first end, the first end engageable with the brake element.7. The system of further comprising pressurized fluid ...

AXIAL AND ROTATIONAL ALIGNMENT SYSTEM AND METHOD

An axial and rotational alignment system including a casing string having an axial orientation feature and a rotational orientation feature; and a tubing string having an axial and rotational orientation assembly thereon, the assembly including a rotational alignment subassembly having a selectively actuable member that is selectively engagable with the rotational orientation feature. 1. An axial and rotational alignment system comprising:a casing string having an axial orientation feature and a rotational orientation feature; anda tubing string having an axial and rotational orientation assembly thereon, the assembly including a rotational alignment subassembly having a selectively actuable member that is selectively engagable with the rotational orientation feature.2. The system as claimed in wherein the feature is a recess.3. The system as claimed in wherein the member is radially extendible.4. The system as claimed in wherein the member is biased to a radially extended position.5. The system as claimed in wherein the member is a pawl.6. The system as claimed in wherein the axial and rotational orientation assembly includes an axial alignment subassembly.7. The system as claimed in wherein the axial alignment subassembly includes a dog housing and a dog biased radially outwardly from the dog housing.8. The system as claimed in wherein the dog includes a profile at a surface thereof engagable with the casing string.9. The system as claimed in wherein the rotational alignment subassembly includes a friction reducer at an interface between the rotational alignment subassembly and an axial alignment subassembly.10. The system as claimed in wherein the rotational alignment subassembly includes a communication device.11. The system as claimed in wherein the communication device is a transceiver.12. The system as claimed in wherein the communication device is a transducer.13. The system as claimed in wherein the communication device is housed in a communication housing. ...

Boring tool

Electrical transmission apparatus through rotating tubular members

The present invention provides an apparatus for the communication of power or data signals across the rotating gap of two tubular members, such as the stator and rotor of a mud motor, and between said rotating members of a drill string through inductive couplers located axially along the drill string.

一种活动键固定可靠的钻机组合式驱动套

本发明公开了一种活动键固定可靠的钻机组合式驱动套，包括驱动套本体，活动键，固定挡块，活动挡块，螺栓；固定挡块固定在驱动套本体凹槽的一端，活动挡块通过螺栓固定在驱动套本体凹槽的另一端，活动键通过固定挡块与活动挡块固定在驱动套本体的凹槽内。本发明的优点在于：驱动套活动键固定可靠，不易脱落；驱动套活动键的安装方式简单，制造成本低；更换活动键的操作空间大，劳动强度低；活动键上下对称，可以倒置互换。

Patent RU2016148607A3

`”ВУ’” 2016148607” АЗ Дата публикации: 26.09.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016148607/03(078082) 04.05.2015 РСТ/ЕР2015/059686 04.05.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14168027.2 13.05.2014 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ХВОСТОВОЙ ПЕРЕХОДНИК С УСИЛЕННОЙ ПРОМЫВОЧНОЙ ЩЕЛЬЮ Заявитель: САНДВИК ИНТЕЛЛЕКЧУАЛ ПРОПЕРТИ АБ, 5Е 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 17/03 (2006.01) Е21В 21/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В17/00, Е21В 17/02, Е21В 17/03, Е21В21/00, Е21В21/12, Е21В 21/14 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): ЕАРАТТЪУ, Езрасепес, РАТЕМТСОРЕ, Рабеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

Drill string for upward drilling and components

FIELD: petroleum industry. SUBSTANCE: group of inventions is referred to drill string for upward drilling and to its components. The drill string includes shank adapter, first drill rod, extension stem and drill bit. The said components are capable of transferring shockwaves and circulating medium. The shank adapter includes the first and the second disconnectable parts. The first drill rod includes socket outlet with untrue inner wall to match relevant end of the adapter coupling. The socket is located in the bushing made conjointly with untrue section of the rod and includes the shock transfer surface arranged at right angle to the central line of the first rod. The extension stem includes socket outlet with untrue inner wall to match relevant end of the adapter coupling. The socket is located in the bushing made conjointly with untrue section and free end of the rod has untrue cross-section to match socket outlet of another extension stem or socket outlet of the first drill rod. Each end of the extension stem includes shock transfer surface arranged at right angle to the central line of the extension stem. Length of the first rod and extension stem is less than 1 m. EFFECT: replacement of the rock drill components without disassembly. 12 cl, 7 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 331 751 (13) C2 (51) ÌÏÊ E21B 6/02 (2006.01) E21B 17/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2006103370/03, 27.05.2004 (72) Àâòîð(û): ÊÎÑÈ× Âëàäî (ZA), ÕÅËÈÍ Àéìî (FI) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 27.05.2004 (73) Ïàòåíòîîáëàäàòåëü(è): ÑÀÍÄÂÈÊ ÀÁ (SE) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 07.07.2003 ZA 2003/5240 (43) Äàòà ïóáëèêàöèè çà âêè: 27.06.2006 (45) Îïóáëèêîâàíî: 20.08.2008 Áþë. ¹ 23 2 3 3 1 7 5 1 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: SU 899899 A, 23.01.1982. SU 335377 A, 11.04.1972. SU 941569 A, 07.07.1982. SU 1254148 A1, 30.08.1986. RU ...

具有悬挂轴承的双轴钻探装置

钻探装置包括限定纵轴线的壳体。该装置的动力部分包括适于响应于钻探流体穿过动力部分而以偏心旋转运动相对于纵轴线运动的转子。动力传动轴具有上端和下端，其中，上端联接至转子，并且能够以转子的偏心运动而运动，下端被约束成相对于纵轴线以同心方式旋转。大体刚性的扭杆具有被约束成以同心方式旋转的上端和下端，并且扭杆的上端联接至动力传动轴的下端。

A kind of architectural engineering pile driving equipment

本发明属于打桩设备技术领域，具体的说是一种建筑工程用打桩设备，包括两根立柱，每根立柱上配合安装滑动套，滑动套之间安装固定框，固定框的中部设置钻机，钻机的输出轴朝下并安装配合块，固定框内设有两个圆环滑轨，圆环滑轨之间配合设有环形滑动圈，包括控制器、支架、电机、滑杆、齿轮副、转轴和弹性绳，所述环形滑动圈上对称固接着两支架；两支架之间连接有两弹性绳；所述弹性绳的两端均通过转轴转动连接在支架上，弹性绳上均串接有两滑板；所述滑板均对称分布在钻机两侧；电机的输出轴连接着滑杆；所述滑杆通过两组齿轮副驱动转轴转动；本发明通过找正机构实现钻机与桩柱的精确对正，从而提高了装置的工作效率和使用寿命。

Extending device, drilling head and method

FIELD: manufacturing technology.SUBSTANCE: group of inventions relates to a drilling head, a method of its operation and a sliding device for a drilling head. Retractable device for drilling head comprises main and drive sections, extension and working sections. Main section and drive section are movable relative to extending section and working section along lengthwise axis. At that, drive section and working section are rigidly connected to each other with possibility of rotation, main section and sliding section are rigidly connected to each other with possibility of rotation, drive section and working section are connected with sliding section with possibility of rotation.EFFECT: safe operation and longer service life.14 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 689 001 C1 (51) МПК E21B 3/02 (2006.01) E21B 19/08 (2006.01) E21D 20/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 17/03 (2018.08); E21B 17/07 (2018.08); E21B 3/02 (2018.08); E21B 7/027 (2018.08); E21D 20/00 (2018.08); E21D 20/003 (2018.08) (21)(22) Заявка: 2018111741, 14.10.2015 14.10.2015 (73) Патентообладатель(и): САНДВИК ИНТЕЛЛЕКЧУАЛ ПРОПЕРТИ АБ (SE) Дата регистрации: 23.05.2019 (56) Список документов, цитированных в отчете о поиске: US 2007/0086862 A1, 19.04.2007. RU 2416509 C2, 20.04.2011. US 3603207 A1, 07.09.1971. US 2007/0114070 A1, 24.05.2007. US 2014/0112724 A1, 24.04.2014. (45) Опубликовано: 23.05.2019 Бюл. № 15 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.05.2018 (86) Заявка PCT: 2 6 8 9 0 0 1 R U (87) Публикация заявки PCT: WO 2017/063692 (20.04.2017) C 1 C 1 EP 2015/073813 (14.10.2015) 2 6 8 9 0 0 1 Приоритет(ы): (22) Дата подачи заявки: 14.10.2015 R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): ХАБЕРЕР Кристоф (AT), БИШОФ Андреас (AT) Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" (54) Выдвижное устройство, бурильная головка и способ (57) Реферат: ...

UPPER DRILLING CORE AND ITS COMPONENTS

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2006 103 370 (13) A (51) ÌÏÊ E21B 17/03 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006103370/03, 27.05.2004 (71) Çà âèòåëü(è): ÑÀÍÄÂÈÊ ÀÁ (SE) (30) Êîíâåíöèîííûé ïðèîðèòåò: 07.07.2003 ZA 2003/5240 (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 07.02.2006 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (87) Ïóáëèêàöè PCT: WO 2005/003507 (13.01.2005) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U (57) Ôîðìóëà èçîáðåòåíè 1. Áóðèëüíà êîëîíêà äë íàïðàâëåííîãî ââåðõ óäàðíîãî áóðåíè â îãðàíè÷åííîì ïðîñòðàíñòâå, ñîäåðæàùèé ïåðåõîäíóþ ìóôòó (11, 14) õâîñòîâèêà, íà÷àëüíóþ øòàíãó (25), óäëèíèòåëüíóþ øòàíãó (26) è áóðîâîå äîëîòî (15), ïðè ýòîì óêàçàííûå êîìïîíåíòû èìåþò ñðåäñòâà (13, 22, 14À, 14Â, 17) äë ïåðåäà÷è óäàðíûõ âîëí è ïðîìûâî÷íîé ñðåäû, îòëè÷àþùèéñ òåì, ÷òî ïåðåõîäíà ìóôòà ñîäåðæèò ïåðâóþ è âòîðóþ ÷àñòè, ðàçúåìíî ñîåäèíåííûå ìåæäó ñîáîé. 2. Áóðèëüíà êîëîíêà ïî ï.1, îòëè÷àþùà ñ òåì, ÷òî ïåðâà ÷àñòü (11) ïåðåõîäíîé ìóôòû íà ïåðåäíåì êîíöå ñîäåðæèò ãíåçäî (20), èìåþùåå ãíåçäîâîé ñîåäèíèòåëüíûé ýëåìåíò (21) è íèæíþþ ïîâåðõíîñòü (22) äë ïåðåäà÷è óäàðíûõ âîëí íà âòîðóþ ÷àñòü (14) ïåðåõîäíîé ìóôòû, è äëèíà (L2) âòîðîé ÷àñòè (14) ìåíüøå äëèíû (L1) ïåðâîé ÷àñòè (11), ïðåäïî÷òèòåëüíî äëèíà (L2) âòîðîé ÷àñòè (14) ïåðåõîäíîé âòóëêè ñîñòàâë åò 60-140 ìì. 3. Ïåðåõîäíà ìóôòà äë ïåðôîðàòîðà äë óäàðíîãî áóðåíè ïîðîäû, èìåþùà óäëèíåííóþ îñíîâíóþ ôîðìó, ïðîìûâî÷íûé êàíàë (17) è óäàðíóþ ïîâåðõíîñòü (13, 22) äë ïåðåäà÷è óäàðíûõ èìïóëüñîâ, îòëè÷àþùà ñ òåì, ÷òî ñîäåðæèò ïåðâóþ ÷àñòü (11) è âòîðóþ ÷àñòü (14), ðàçúåìíî ñîåäèíåííûå ìåæäó ñîáîé. 4. Ìóôòà ïî ï.3, îòëè÷àþùà ñ òåì, ÷òî ïåðâà ÷àñòü (11) ñîäåðæèò ãíåçäî (20), èìåþùåå ãíåçäîâîé ñîåäèíèòåëüíûé ýëåìåíò (21) è íèæíþþ ïîâåðõíîñòü (22) äë ïåðåäà÷è óäàðíûõ âîëí íà âòîðóþ ÷àñòü (14), è äëèíà (L2) âòîðîé ÷àñòè (14) ...

Shank adaptor with reinforced flushing slot

FIELD: soil or rocks drilling.SUBSTANCE: group of inventions relates to a shank adaptor having a reinforced region of the flush hole. Rock drilling device comprises a shank adaptor. Shank adaptor comprises an elongated body having a first end to be positioned towards a piston and a second end to be positioned towards a drill string. Body has an axially extending internal bore to allow passage of a flushing fluid to the drill string via the second end. Adaptor comprises one flush hole or two diametrically arranged flush holes extending radially through the body to the internal bore. Cross sectional area of the body at an axially reinforced region of the flush hole is equal to or greater than a cross sectional area of the body at an axial position of the internal bore axially beyond the reinforced region.EFFECT: reduction of localised stress concentrations in the wall of the adaptor.15 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 679 933 C2 (51) МПК E21B 17/03 (2006.01) E21B 21/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 17/03 (2018.08); E21B 21/00 (2018.08) (21)(22) Заявка: 2016148607, 04.05.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): САНДВИК ИНТЕЛЛЕКЧУАЛ ПРОПЕРТИ АБ (SE) 14.02.2019 (56) Список документов, цитированных в отчете о поиске: GB 2352671 A, 07.02.2001. RU 13.05.2014 EP 14168027.2 (43) Дата публикации заявки: 13.06.2018 Бюл. № 17 (45) Опубликовано: 14.02.2019 Бюл. № 5 2310056 C2, 10.11.2007. US 6109620 A, 29.08.2000. GB 2212747 A, 02.08.1989. WO 2003/ 078788 A1, 25.09.2003. WO 2004/079152 A1, 16.09.2004. WO 2012/032485 A2, 15.03.2012. (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.12.2016 EP 2015/059686 (04.05.2015) (87) Публикация заявки PCT: 2 6 7 9 9 3 3 WO 2015/173045 (19.11.2015) R U 2 6 7 9 9 3 3 Приоритет(ы): (30) Конвенционный приоритет: R U 04.05.2015 (72) Автор(ы): ЛЕЙОН ...

Drilling motor with coupling rotating in one direction

Группа изобретений относится к оборудованию, применяемому в области бурения. Узел бурового двигателя содержит корпус, шпиндель, содержащий выемку, собачку, выполненную с возможностью выборочного вхождения в зацепление с выемкой, причем собачка имеет ось вращения и, в целом, плоскую контактную поверхность, которая выполнена с возможностью входить в зацепление с, в целом, плоской контактной поверхностью выемки, и при этом входящие в зацепление контактные поверхности собачки и выемки расположены под углом к радиусу, проходящему от оси вращения до входящих в зацепление контактных поверхностей собачки и выемки. Собачка выполнена с возможностью поворота вокруг шарнирного пальца, вставленного в удлиненное отверстие, такое что шарнирный палец расположен на расстоянии от корпуса в направлении удлиненной части поперечного сечения удлиненного отверстия, при этом шарнирный палец не передает крутящий момент между корпусом и шпинделем при предотвращении относительного вращения между корпусом и шпинделем. Обеспечивается отсутствие восприятия сжимающей силы шарнирными пальцами собачки при передаче крутящего момента от корпуса шпинделю. 3 н. и 28 з.п. ф-лы, 5 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 633 625 C2 (51) МПК E21B 4/02 (2006.01) E21B 17/02 (2006.01) F16D 41/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015111832, 16.10.2012 (24) Дата начала отсчета срока действия патента: 16.10.2012 (72) Автор(ы): ДАУНИ Эндрю М. (GB), КРЭМПТОН Кристофер П. (GB) 16.10.2017 Приоритет(ы): (22) Дата подачи заявки: 16.10.2012 (56) Список документов, цитированных в отчете о поиске: US 2008/0264692 A1, 30.10.2008. US (43) Дата публикации заявки: 10.12.2016 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.05.2015 (86) Заявка PCT: US 2012/060345 (16.10.2012) (87) Публикация заявки PCT: 2 6 3 3 6 2 5 R U Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара C 2 C 2 WO ...

Coiled Tubing Quick Connect

A bottom hole assembly supported by coiled tubing has components attached to each other with quick connections that do not require threading to provide the integral connection capable of supporting the BHA's required, torque, tensile and pressure loads. This quick connect feature provides torque transmission capability and does not need rig equipment such as tongs for makeup. Connecting the components is faster and safer particularly when the connections have to be made well above a rig floor. The lower end of the coiled tubing connector can also be provided with a quick connection half to mate with the uppermost tool in the bottom hole assembly.