Drill Pipe Tubing and Casing Protector

An assembly and method for protecting a pipe string movable within a wellbore. A generally annular body () is internally dimensioned to fit around said pipe string, and an outer sleeve () formed from at least two part-annular sections () and rotatably located over the annular body (). A pair of substantially annular clamping means are adapted to restrict longitudinal movement of the body () and outer sleeve () relative to the pipe string, each clamping means comprising a one-piece clamping ring () and a fastener () adapted to tighten the clamping ring () around the pipe string. The body (), outer sleeve (), and clamping rings () may be formed from one or more sacrificial materials that can break up and be circulated out of the wellbore. 1. A protector assembly for a pipe string movable within the bore of a well , said protector assembly comprising:a generally annular body internally dimensioned to fit around said pipe string;an outer sleeve formed from at least two part-annular sections and located over the annular body so as to be rotatable relative thereto; anda pair of substantially annular clamping means adapted to restrict longitudinal movement of the body and outer sleeve relative to the pipe string, each clamping means comprising a one-piece clamping ring and a fastener adapted to tighten the clamping ring around the pipe string.2. The protector assembly of claim 1 , wherein the body claim 1 , outer sleeve claim 1 , and clamping rings are formed from one or more sacrificial materials.3. The protector assembly of claim 1 , wherein the body and outer sleeve are both formed from two part-annular sections claim 1 , and the part-annular sections are secured together using fasteners formed from sacrificial materials.4. The protector assembly of claim 1 , wherein the outer sleeve is formed from first and second part-annular sections claim 1 , wherein the first section has male and female engagement portions adapted to interlock with respective female and male ...

APPARATUS AND METHOD FOR TESTING FLOAT EQUIPMENT

Apparatus and method for testing float equipment used in the construction of wellbores for the hydrocarbon exploration and production industry. The apparatus has a housing and an opening for receiving an item of float equipment. A seal arrangement is configured to seal with the item of float equipment, such that the housing and seal arrangement together define a test chamber. The test chamber is pressurised to expose at least a part of the item of float equipment in the test chamber to a test pressure. In embodiments of the invention, at least a part of an outside surface and at least a part of the item of float equipment may be simultaneously loaded. The tests performed more closely simulate the conditions to which the equipment is exposed in a wellbore. 1. An apparatus for testing float equipment used in the construction of wellbores for the hydrocarbon exploration and production industry , the apparatus comprising:a housing and an opening for receiving at least a part of an item of float equipment;a seal arrangement configured to seal with the item of float equipment, such that the housing and seal arrangement together define a test chamber; andmeans for pressurising the test chamber to thereby expose at least a part of the item of float equipment in the test chamber to a test pressure.2. The apparatus according to claim 1 , wherein the seal arrangement comprises a compression seal claim 1 , which is operable to be energised by an actuator.3. The apparatus according to claim 2 , wherein the actuator comprises a setting collar.4. The apparatus according to claim 3 , wherein the seal arrangement is energised by rotating one or more axial bolts or screws to cause the setting collar to slide in an axial direction.5. The apparatus according to comprising one open end around which the seal arrangement is disposed.6. The apparatus according to claim 5 , wherein the housing comprises first and second open ends claim 5 , and further comprises a removable end cap.7. The ...

Downhole Swivel Tool

The invention provides a swivel tool for use in a wellbore. The tool comprises a tool body and a mandrel which is axially moveable relative to the tool body. The tool also comprises a lock member moveable between a first condition in which the mandrel is rotatably movable relative to tool body and a second condition in which the mandrel and a tool body are rotationally coupled. The lock member is configured to move between the first condition and second condition in response to a mechanical axial force and rotational force on the mandrel. 155-. (canceled)56. A swivel tool for use in a wellbore comprising:a tool body;a mandrel which is axially moveable relative to the tool body;and a lock member moveable between a first condition in which the mandrel is rotatably movable relative to the tool body and a second condition in which the mandrel and the tool body are rotationally coupled;wherein the lock member is configured to move between the first condition and second condition in response to a mechanical axial force and rotational force on the swivel tool.57. The swivel tool according to wherein the tool body is connectable to a downhole apparatus and/or to a downhole string.58. The swivel tool according to wherein the swivel tool is connectable to a drill string above a liner and/or to a drill string above a sand screen apparatus.59. The swivel tool according to wherein the lock member is configured to move between the first condition and second condition in response to tension and right-hand rotation of the mandrel or in response to tension and left-hand rotation of the mandrel.60. The swivel tool according to wherein the swivel tool is configured to be locked by mechanical manipulation of the mandrel or a downhole string connected to the mandrel.61. The swivel tool according to comprising a bearing member wherein the bearing member is located between an inner surface of the tool body and an outer surface of the mandrel claim 56 , and wherein the bearing member is ...

Head Apparatus

The invention provides an apparatus for dropping at least one object into a wellbore tubular string. The tool comprises a mandrel having an inlet and an outlet. The tool also comprises a movable member comprising a bore for receiving the at least one object. The member is movable relative to the mandrel between a first condition in which the bore is not aligned with the mandrel outlet and a second condition in which the bore is aligned with the mandrel outlet. 1. Apparatus for dropping at least one object into a wellbore tubular string , the apparatus comprising:a mandrel having an inlet and an outlet;a movable member comprising a bore configured to receive the at least one object;wherein the member is movable relative to the mandrel between a first condition in which the bore is not aligned with the mandrel outlet and a second condition in which the bore is aligned with the mandrel outlet.2. (canceled)3. The apparatus according to wherein the apparatus is connectable to a drill sting claim 1 , a cement head claim 1 , cement pump claim 1 , a fluid pump and/or to a top drive on a rig floor.4. (canceled)5. (canceled)6. (canceled)7. The apparatus according to wherein the mandrel outlet is configured to be connected to a tubular string and/or the mandrel inlet is configured to be connected to a fluid pump claim 1 , cement pump claim 1 , cement head and/or a tubular string.8. (canceled)9. (canceled)10. The apparatus according to wherein the movable member is configured to receive at least one tube wherein the at least one tube comprises the at least one object.11. The apparatus according to wherein the at least one tube is removably located and/or mounted within the bore of the movable member.12. The apparatus according to wherein the movable member is configured to allow the at least one tube to be inserted within the bore of the movable member when in the first condition and wherein the at least one object is configured to be released from the at least one tube when ...

Drill pipe tubing and casing protector

An assembly and method for protecting a pipe string movable within a wellbore. A generally annular body ( 56 ) is internally dimensioned to fit around said pipe string, and an outer sleeve ( 62 ) formed from at least two part-annular sections ( 58,60 ) and rotatably located over the annular body ( 56 ). A pair of substantially annular clamping means are adapted to restrict longitudinal movement of the body ( 56 ) and outer sleeve ( 62 ) relative to the pipe string, each clamping means comprising a one-piece clamping ring ( 70 ) and a fastener ( 74 ) adapted to tighten the clamping ring ( 70 ) around the pipe string. The body ( 56 ), outer sleeve ( 62 ), and clamping rings ( 70 ) may be formed from one or more sacrificial materials that can break up and be circulated out of the wellbore.

Well clean-up tool with improved cleaning member

Well cleaning apparatus comprises a tubular body member attached to a work string which supports one or more resilient and pliable cleaning members. Each cleaning member is provided with a means for allowing bypass as sized and adapted to wipe the well casing. In one embodiment, the apparatus may be used to plunge the well with the cleaning members providing the sealing relationship with the well casing.

Improved hanging apparatus and method

Apparatus, such as a liner, adapted to be hung in a downhole tubular such as casing is described. The apparatus includes one or more circumferentially distributed abrasive portions, arranged to be movable radially outwards by a dimple former or an expander. In an embodiment, the abrasive portions are provided on disks (21) movable in recesses (20) in the outer diameter (19) of the apparatus being hung. In an embodiment, the apparatus is hung by operating a dimple former provided on the running tool.

Downhole tool with actuable barrier

A downhole tool for use in a cased or lined well bore ( 40 ), the tool including a barrier ( 36 ) arranged on an outer surface of the tool. The barrier may be of a resilient material so that it can be deformed on actuation to control the passage of fluid between the tool and the casing or liner. Fluid flow is thus selectively diverted through flow paths ( 22 ) in the tool. Embodiments are described for actuating the barrier by hydraulic means and for filtering the fluid within the flow paths.

Downhole swivel tool

Apparatus and method for inflating packers in a drilling well

Apparatus and method is disclosed for setting inflatable packers in a well bore which includes the transporting of settable fluid from the surface with a work string or liner as it is run in the well. The invention therefore negates the requirement of having to pump cement or the like to precise locations down hole to the vicinity of the packers to be set.

Shoe for wellbore lining tubing

This invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In one embodiment, a shoe ( 30 ) is disclosed which includes a tubular outer body ( 32 ) that is coupled to a wellbore lining tubing ( 28 ), and a tubular inner body ( 36 ) located within the outer body and coupled to fluid supply tubing ( 38 ). A generally annular flow area ( 44 ) is defined between the bodies which is in selective fluid communication with the well-bore ( 10 ), for the return flow of fluid from the wellbore through a flow port ( 62 ) in the outer body, along the shoe and into an annulus ( 46 ) defined between the wellbore lining tubing and the fluid supply tubing. A valve assembly ( 40 ) of the shoe has an actuating member ( 92 ) located within the inner body, and a flow controller ( 96 ) for selectively closing the flow port. A ball ( 98 ) is used to prevent further fluid flow through the inner body into the wellbore. Exposure of the actuating member to fluid at a first fluid pressure then causes the actuating member to move to an actuating position where the flow controller closes the flow port. Exposure to fluid at a second fluid pressure higher than said first pressure reopens fluid flow from the inner body into the wellbore.

Down-hole tool with detachable cleaning pads

A down-hole tool for use in an oil or gas well is provided with detachable components 5 that are held to a body or tool housing 1 by longitudinal mechanical fasteners 2 disposed in a generally radial orientation. The mechanical fasteners 2 allow for the components to be quickly removed and refurbished or replaced, while also permitting radial movement or floating of the components during operation of the tool. A spring 3 or other biasing means may be incorporated to bias the components in a radial outward direction during operation.

Downhole swivel sub

A swivel sub (10) for connection in a work string between a workstring and a downhole apparatus is disclosed. The sub has a first substantially cylindrical body (12), including a sleeve portion (22) having one or more teeth (46) and a second - substantially cylindrical body (28) being partially located within the sleeve portion. The bodies are arranged to rotate relative to each other. A sliding sleeve (48), having one or more teeth (56) arranged mutually engage with the first teeth is axially moveable between disengaged and engaged positions, in one embodiment by a pressure differential being created in the sub. Methods of running the tool are described, with particular application to setting and hanging of liners and screens. The invention also offers advantages for drilling applications.

Rotating wear protector for a pipe string

Pipe string protector assembly 50 comprising an annular body 56 to fit over pipe string. Outer sleeve 62 formed from two part-annular sections 58/60 rotatably located over the annular body. A pair of clamping means 70 restrict longitudinal movement of the body and outer sleeve relative to the pipe. The clamping means comprises a clamping ring 70 and fastener 100/102. The body, outer sleeve and clamping means may be formed from sacrificial material. The body can be formed from two semi-annular sections 52/54. There may be a channel to receive the clamping band 70. The clamping means may comprise an end sleeve (64/66, fig.6) having an abutment surface. A method of causing wear of the protector assembly and circulating the broken parts out of the well is also disclosed.

Downhole cleaning tool with shear clutch

A cleaning tool <B>1</B> for cleaning casing within a well bore comprises an upper <B>3</B> and lower <B>4</B> sleeve which are mounted on a work string <B>2</B> via ball bearings <B>5</B> to enable them to rotate independently of the work string <B>2</B>. The upper <B>3</B> and lower <B>4</B> sleeves limit the axial movement of a lantern <B>6</B> on which cleaning members <B>7</B> are mounted The lower sleeve <B>4</B> has a recess for receiving the lantern <B>6</B> and within which a clutch <B>9</B> sits. In normal operation the lantern <B>6</B> sits between the upper <B>3</B> and lower <B>4</B> sleeves and is able to rotate freely of the work string <B>2</B>, however when the work string <B>2</B> is picked up, friction from the casing wall will encourage the lantern <B>6</B> to engage the clutch <B>9</B>. With the clutch <B>9</B> engaged the lantern <B>6</B> will rotate with the work string. The clutch <B>9</B> is held to the work string by a shear pin so that if the resistance to rotation of the lantern <B>6</B> exceeds a given load the shear pin will break allowing the lantern <B>6</B> to rotate freely with respect to the work string <B>2</B> even if the clutch <B>9</B> is engaged.

Improved hanging apparatus and method

Apparatus, such as a liner, adapted to be hung in a downhole tubular such as casing is described. The apparatus includes one or more circumferentially distributed abrasive portions, arranged to be movable radially outwards by a dimple former or an expander. In an embodiment, the abrasive portions are provided on disks (21) movable in recesses (20) in the outer diameter (19) of the apparatus being hung. In an embodiment, the apparatus is hung by operating a dimple former provided on the running tool.

Compression set packer

A downhole packer for providing a seal in a well bore to allow integrity testing of the well bore. The packer is set by a sleeve moveable on a body of the packer being set down on a formation in the well bore. Movement of the sleeve compresses one or more packing elements. The packer further includes a by--bass channel which allows fluid to pass through the tool as it is run in the well bore, and brushes or scrapers for cleaning the well bore and preparing the location for the packer elements to be contacted upon.

Compression set packer

A downhole packer for providing a seal in a well bore to allow integrity testing of the well bore. The packer is set by a sleeve moveable on a body of the packer being set down on a formation in the well bore. Movement of the sleeve compresses one or more packing elements. The packer further includes a by--bass channel which allows fluid to pass through the tool as it is run in the well bore, and brushes or scrapers for cleaning the well bore and preparing the location for the packer elements to be contacted upon.

Compression set packer

A wellbore system with a tubular string extending from an earth surface down into a wellbore in the earth, a packer system with a selectively settable packer element, and a disconnect located between an end of the tubular string and the packer system, the disconnect operable from the surface by imposing a downward force on the tubular string. In one aspect the packer system's packer element is a tension-set packer element. A wellbore disconnect with a top sub ( 122 ), a mandrel ( 126 ) having an upper end secured to the top sub and a portion below the upper end releasably secured with at least one releasable member ( 138 ) to a carrier member ( 136 ), the carrier member having apparatus ( 156 ) for selectively gripping the mandrel, the apparatus for selectively gripping the mandrel also selectively gripping a bottom sub ( 144 ) within which the mandrel is moveable, the at least one releasable member releasable in response to a downward force on the disconnect.

Downhole tool with actuable barrier

A downhole tool for use in a cased or lined well bore (40), the tool including a barrier (36) arranged on an outer surface of the tool. The barrier may be of a resilient material so that it can be deformed on actuation to control the passage of fluid between the tool and the casing or liner. Fluid flow is thus selectively diverted through flow paths (22) in the tool. Embodiments are described for actuating the barrier by hydraulic means and for filtering the fluid within the flow paths.

Tools down in the well

Casing centraliser

A centraliser for centralising tubular members in downhole applications is provided. The centraliser (10) comprises a substantially tubular body (16) having an inner surface (40), an outer surface (44), and a plurality of apertures (26) extending between the inner and outer surfaces (40,44). The centraliser also comprises a plurality of projecting elements (14) which are located in the apertures (26) so as to project radially from the outer surface (44) of the body (16). Each projecting element (14) includes a base portion (28) adapted to contact the body (16) and limit the outward radial movement of the element (14). A projecting element for use in the centraliser, and a method of selecting and assembling a centraliser are also provided.

Compression set packer

Downhole swivel tool

The invention provides a swivel tool for use in a wellbore. The tool comprises a tool body and a mandrel which is axially moveable relative to the tool body. The tool also comprises a lock member moveable between a first condition in which the mandrel is rotatably movable relative to tool body and a second condition in which the mandrel and a tool body are rotationally coupled. The lock member is configured to move between the first condition and second condition in response to a mechanical axial force and rotational force on the mandrel.

Downhole fluid sampler

A downhole tool and method of operation is described for collecting fluid samples in a downhole environment. The tool is connectable on a work string and is activated by dropping a ball through the work string. On activation a sleeve arranged on the body of the tool is caused to shift from a first to a second position thereby creating a chamber between the sleeve and body. The sample fluid is drawn into the chamber as it is created and is prevented from exiting by a non-return valve. The tool locks the sleeve in the second position to fix the chamber. The sample can then be retrieved along with the tool.

Wellhead seal unit

A wellhead seal unit for sealing a subsea oil and/or gas well at the wellhead. The unit comprises a sleeve, sealingly engaged to the workstring and to which, blow out preventer rams can engage. The unit allows the workstring to be rotated and reciprocated within the wellbore without releasing the seal. Methods of cleaning the sealed well and performing an inflow test are described.

Hanging Apparatus And Method

Apparatus, such as a liner, adapted to be hung in a downhole tubular such as casing is described. The apparatus includes one or more circumferentially distributed abrasive portions, arranged to be movable radially outwards by a dimple former or an expander. In an embodiment, the abrasive portions are provided on disks moveable in recesses in the outer diameter of the apparatus being hung. In an embodiment, the apparatus is hung by operating a dimple former provided on the running tool.

Disengageable downhole tool

Downhole swivel sub

Verbesserte hängevorrichtung und -verfahren

Shoe for wellbore lining tubing

Provided is a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.

Method and apparatus for video validation

A validation tool (100) has a central body member (10) with threaded connections at each end (12, 13), as well as a central bore (11) extending there through. At least one battery powered video camera (20) or other optical data sensor is disposed along an outer surface of the body member and can be selective activated and de-activated. Optional mirror(s) (50) are provided to permit optimum viewing of the surrounding environment, while visual images and/or other sensed data is recorded and stored on at least one data storage media. The validation tool can be used for various purposes including wellbore integrity and verification that drilling mud has been fully displaced with completion fluid in a wellbore.

Apparatus and method for testing float equipment

Improved shoe for wellbore lining tubing

Provided is a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.

Improved shoe for wellbore lining tubing

Provided is a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.

Forbedret sko for ror for borehullsfôring

Den foreliggende oppfinnelse vedrører en sko for borehullsforingsrør og en fremgangsmåte for å plassere borehullsforingsrør i et borehull. I særdeleshet, men ikke alene vedrører den foreliggende oppfinnelse en sko for borehulls-foringsrør med en forbedret avledersammenstilling for fluidstrøm for å styre sirkulering av fluid i borehullet.

Improved shoe for wellbore lining tubing

IMPROVED SHOE FOR WELLBORE LINING TUBING 5 THE PRESENT INVENTION RELATES TO A SHOE FOR WELLBORE LINING TUBING AND TO A METHOD OF LOCATING WELLBORE LINING TUBING IN A WELLBORE. IN PARTICULAR, BUT NOT EXCLUSIVELY, THE PRESENT INVENTION RELATES TO A SHOE FOR WELLBORE LINING TUBING HAVING AN IMPROVED FLUID FLOW DIVERTER ASSEMBLY FOR CONTROLLING CIRCULATION OF FLUID IN THE WELLBORE. 10

Azuche mejorado para la tubería de revestimiento de perforaciones.

Un azuche para tubería de revestimiento de perforación, comprendiendo el azuche: un cuerpo tubular exterior adaptado para acoplarse a la tubería de revestimiento de la perforación, teniendo el cuerpo tubular exterior al menos una abertura de flujo para la comunicación del fluido entre la perforación y un interior del cuerpo exterior; un cuerpo interior localizado dentro del cuerpo tubular exterior y que se adapta para acoplarse a la tubería de suministro de fluido localizado dentro de la tubería de revestimiento de la perforación para el flujo del fluido a través del cuerpo interior tubular dentro de la perforación; un conjunto de desviación del flujo que es operativo para moverse entre una primera posición en la que se permite el flujo de fluido desde la perforación hasta un espacio anular definido entre la tubería de revestimiento de la perforación y la tubería de suministro de fluido y una segunda posición en la que se impide el flujo de fluido desde la perforación a un espacio anular definido entre la tubería de revestimiento de la perforación y la tubería de suministro de fluido; medios de actuación para accionar el movimiento del conjunto de desviación del flujo entre su primera y su segunda posiciones; comprendiendo los medios de actuación un asiento adaptado para recibir un elemento de contención del flujo, en el que el azuche se adapta de modo que, tras su actuación, se impide el flujo del fluido desde la tubería de alimentación de fluido dentro de la perforación hasta que el conjunto de desviación del flujo está en su segunda posición; caracterizado por que los medios de actuación comprenden además un mecanismo de liberación para el elemento de contención del flujo.

Verbesserter schuh für bohrlochrohrauskleidung

Verbesserter schuh für bohrlochrohrauskleidung

Improved shoe for wellbore lining tubing

The present invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore lining tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.

Shoe for wellbore lining tubing

The present invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore lining tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.

Safety mechanism for weight-set downhole tool

Safety mechanism for weight-set downhole tool

Apparatus and method for running down hole liners

Downhole circulation valve operated by dropping balls

Apparat for fanging av avfall i et borehull

Disengagable reamer

Method and apparatus for running tubulars

Casing centraliser

A centraliser for centralising tubular members in downhole applications is provided. The centraliser (10) comprises a substantially tubular body (16) having an inner surface (40), an outer surface (44), and a plurality of apertures (26) extending between the inner and outer surfaces (40,44). The centraliser also comprises a plurality of projecting elements (14) which are located in the apertures (26) so as to project radially from the outer surface (44) of the body (16). Each projecting element (14) includes a base portion (28) adapted to contact the body (16) and limit the outward radial movement of the element (14). A projecting element for use in the centraliser, and a method of selecting and assembling a centraliser are also provided.

Downhole circulation valve operated by dropping balls

Apparat for Õ fange opp rusk i et brönnhull

Disengageable downhole tool

A disengageable downhole tool (10) for use in the oil and gas industry. The tool can be decoupled from a work string to allow further tools to be operated from the work string on being run deeper into a wel. The tool is then picked-up by the work string on retrieval from the well. In one embodiment a milling tool (28, 32)is described having a hex-drive system for operation of the tool from the work string with coupling and decoupling being achieved via shear pins (40) and a mating ledge and shoulder.

Fremgangsmate og apparat for setting av ror

En fremgangsmåte er beskrevet for å sette en kompletteringsstreng, slik som et foringsrør inn i et forboret borehull under dreining av en komponent nede i brønnen i forhold til kompletteringsstrengen. Komponenten i brønnen kan for eksempel være en boresko eller en rømmersko. Det er også beskrevet en borbar eller fresbar drivsammenstilling for å drive dreiningen av en del av foringsrørsammenstillingen og andre anvendelser derav.