Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 16. Отображено 16.
19-02-2014 дата публикации

Multi-level pitch fracturing sliding sleeve capable of fishing ball seats

Номер: CN103590800A
Принадлежит:

The invention discloses a multi-level pitch fracturing sliding sleeve capable of fishing ball seats. The multi-level fracturing sliding sleeve capable of fishing the ball seats comprises connectors, elastic claws and an elastic claw pipe. The connectors comprise the upper connector and the lower connector. The upper connector is connected with the lower connector, and the upper end of the upper connector is provided with an upper locating groove, a lower locating groove and a side hole. The multi-level pitch fracturing sliding sleeve further comprises a sliding sleeve mechanism and a ball seat fishing mechanism. When the sliding sleeve mechanism and the ball seat fishing mechanism move downwards for opening the sliding sleeve, elastic claw gaps in the sliding sleeve mechanism correspond to the side hole, and the elastic claw pipe is communicated inside and outside. Self-locking elastic claws which are matched with a ball seat fishing mechanism inside an upper-level sliding sleeve and a ...

Подробнее
08-04-2015 дата публикации

Oil-gas well used controllable set packer for multistage acid fracturing

Номер: CN104500015A
Принадлежит:

The invention discloses an oil-gas well used controllable set packer for multistage acid fracturing. An upper joint is connected with the upper end of the outer part of a center pipe. A cylinder liner is connected with the lower end of the outer part of the center pipe. A lower joint is connected with the outer part of the center pipe and arranged between the center pipe and the cylinder liner. An expanded cavity and a pressure transmission hole are formed in the lower joint. The cylinder liner, the center pipe and the lower joint form a hydraulic cylinder. One end of the pressure transmission hole is communicated with the expanded cavity, and the other end of the pressure transmission hole is communicated with the hydraulic cylinder. A reducing ball seat is mounted in an annular groove on the top of a control liner. The reducing ball seat and the control liner are mounted in the lower joint and the reducing ball seat is arranged on the bottom of the center pipe. The reducing ball seat ...

Подробнее
01-04-2015 дата публикации

Method for oriented synthesis of three-dimensional metal organic framework microporous materials by solvent control method

Номер: CN104478946A
Принадлежит:

The invention discloses a method for oriented synthesis of three-dimensional metal organic framework microporous materials by solvent control method, a molybdenum precursor K4 [Mo (CN)8]18-C-6 crown ether DMF solution is placed on the bottom of a test tube, DMF, methanol and water are mixed into a mixture as a buffer layer, a nickel precursor [Ni (L) (H2O) 2] (ClO4)2 methanol solution is placed on the buffer layer, and placed still in a dark place, after two weeks, diamond shaped dark purple crystals are precipitated, or the diamond shaped dark purple crystals are transformed into bar shape dark purple crystals, the crystals are washed with methanol and naturally dried to obtain three-dimensional metal organic framework microporous materials with different structures. The method has the beneficial effects that: the three-dimensional metal organic framework microporous materials can be synthesized by use of moderate synthesis conditions of normal pressure and temperature solvent diffusion ...

Подробнее
18-02-2015 дата публикации

Cyano-bridged two-dimensional chromium-manganese coordination polymer magnetic material and preparation method thereof

Номер: CN104356169A
Принадлежит:

The invention discloses a cyano-bridged two-dimensional chromium-manganese coordination polymer magnetic material and a preparation method thereof and relates to preparation and properties of cyano-bridged molecular materials. A three-layer solvent diffusion method is adopted for preparation, the preparation method is relatively unique and practical, and the prepared material is good in crystal form and high in purity. The target product adopts a cyano-bridged two-dimensional structure, chromium and manganese interact with each other through ferrimagnetism, a low temperature zone presents the magnetism change behavior, and the material has the potential application value in the aspect of information storage.

Подробнее
08-10-2014 дата публикации

Excitation type differential pressure sliding sleeve

Номер: CN104088614A
Принадлежит:

The invention discloses an excitation type differential pressure sliding sleeve. The sliding sleeve comprises an upper joint and a lower joint which is in threaded connection with the upper joint. The upper joint is provided with a plurality of fracture holes. The sliding sleeve further comprises a sliding sleeve body, a shear pin, a rupture disk and a seal cap. The inner wall of the lower joint is provided with three steps, and the inner diameter of the lower joint is decreased step by step from top to bottom; the part, on the first step, of the lower joint is provided with internal threads connected with the upper joint; a second air cavity is reserved between the bottom end of the upper joint and the first step; the lower portion of the lower joint is provided with a through hole throughout the wall of the lower joint; the outer side of the through hole is sealed through the seal cap, and the inner side of the through hole is provided with the rupture disk; a first air cavity is reserved ...

Подробнее
27-10-2010 дата публикации

Multi-way releasing device

Номер: CN0101871332A
Принадлежит:

The invention relates to a multi-way releasing device, belonging to the technical field of manufacturing releasing tools for downhole operation, and comprising an upper joint, a connection sleeve and a lower connection tube, a thread spring lock tube, a releasing lock tube and a releasing lock. The upper joint is connected with the upper end of the thread spring lock tube, the lower end of the connection sleeve is connected with the lower connection tube, the lower end of the releasing lock tube is connected with the releasing lock, and the lower end of the thread spring lock tube is providedwith split thread, thus the problem of unsuccessful releasing in the prior art is changed; the invention invents multiple releasing mechanisms, and provides a multi-way releasing device which has theadvantages of multiple releasing ways, simple structure and simple and convenient operation.

Подробнее
20-10-2010 дата публикации

Split type anchor suspension packer

Номер: CN0101864923A
Принадлежит:

The invention discloses a split type anchor suspension packer, which relates to the field of manufacturing technology of downhole tools for oil and gas wells. The packer comprises an upper anchor mechanism and a lower anchor mechanism, the lower end of upper anchor is provided an upper cone, a bushing, an upper swelling-preventing ring assembly, an upper packing element seat, a lower packing element seat, an upper packing element, a lower packing element, a lower swelling-preventing ring and an upper cylinder liner in sequence. A middle joint is downward provided with a lower cone, a lower cone connecting pipe and a lower anchor in sequence, and a pressure transmitting hole is arranged at the lower end of the middle joint. The provided split type anchor suspension packer suspended in a sleeve pipe can solve the problems of jamming or early packing caused by anchor breakage during drilling down in the prior art, and has the characteristics of small step-by-step locking stop clearance, convenient ...

Подробнее
03-08-2011 дата публикации

Hydraulic switch sliding bush

Номер: CN0101265792B
Принадлежит:

The invention discloses a sliding sleeve for a hydraulic switch, which belongs to the manufacture technology field of underground tool for cementing operation in the oil and natural gas drilling engineering, and comprises a sliding sleeve structure for switch and a control structure. The sliding sleeve structure for switch comprises an upper joint, a piston sleeve, a switch sleeve, a central tubeand a lower joint, wherein the piston sleeve is sleeved outside the upper joint, the switch sleeve is sleeved outside the central tube, and the lower joint is connected with the lower end of the central tube; the control structure comprises a connecting joint, a cylinder sleeve, a piston rod and a sealing plug, wherein the connecting joint is connected with the cylinder sleeve, the sealing plug is arranged on the lower end of the piston rod, and the control structure is arranged in the upper joint of the sliding sleeve structure for switch. The invention provides a sliding sleeve for hydraulic switch ...

Подробнее
08-12-2010 дата публикации

Oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure

Номер: CN0101906955A
Принадлежит:

The invention discloses an oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure, relates to the technical field of underground tool manufacturing for yield increasing modification of oil and gas wells, and designs the oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure capable of realizing multi-zone layer-by-layer fracture acidizing construction. The structure is sequentially connected with a back-off machine, a circulating valve, a positioned, a centralizing hydraulic anchor, an upper packer, an upper adjustment pup joint, a sand blasting and acid jetting machine, a lower adjustment pup joint, a lower packer and a centralizer, can solve the problem of not strong pertinency of yield increasing modification positions in the prior art, and has the characteristic of simple structure.

Подробнее
11-04-2023 дата публикации

Multi-channel shaft cleaning device

Номер: CN115949372A
Принадлежит:

The invention provides a multi-channel shaft cleaning device. The multi-channel shaft cleaning device comprises an upper connector, a cleaning module and a lower connector which are connected in sequence. The cleaning module comprises a shell, a core shaft unit and a channel switching unit, wherein the core shaft unit and the channel switching unit are arranged in the shell from inside to outside. Wherein a plurality of circulation holes are formed in the shell; the mandrel unit comprises an upper mandrel and a lower mandrel; wherein the upper core shaft is provided with a plurality of first bypass holes, the channel switching unit can enable the first bypass holes and the circulation holes in the shell to be in a communicated or closed state, in the closed state, fluid flowing into the upper core shaft can flow into the lower core shaft and flow out of the lower connector, and in the communicated state, the fluid flows out of the lower connector. And fluid flowing into the upper core shaft ...

Подробнее
17-09-2008 дата публикации

Hydraulic switch sliding bush

Номер: CN0101265792A
Принадлежит:

The invention discloses a sliding sleeve for a hydraulic switch, which belongs to the manufacture technology field of underground tool for cementing operation in the oil and natural gas drilling engineering, and comprises a sliding sleeve structure for switch and a control structure. The sliding sleeve structure for switch comprises an upper joint, a piston sleeve, a switch sleeve, a central tube and a lower joint, wherein the piston sleeve is sleeved outside the upper joint, the switch sleeve is sleeved outside the central tube, and the lower joint is connected with the lower end of the central tube; the control structure comprises a connecting joint, a cylinder sleeve, a piston rod and a sealing plug, wherein the connecting joint is connected with the cylinder sleeve, the sealing plug is arranged on the lower end of the piston rod, and the control structure is arranged in the upper joint of the sliding sleeve structure for switch. The invention provides a sliding sleeve for hydraulic ...

Подробнее
20-03-2018 дата публикации

Bridging plug is exempted from to bore by big latus rectum with sit and seal function of giving up

Номер: CN0207122297U

The utility model discloses a bridging plug is exempted from to bore by big latus rectum with sit and seal function of giving up, including center tube, packing element mechanism, cone mechanism, slips mechanism with sit and seal a releasing mechanism, the draw -in groove has been seted up along the axial in the center tube lower part, packing element mechanism, cone mechanism and slips mechanismin proper order the suit on the center tube, and the taper surface cooperation in slips mechanism and the cone mechanism, slips mechanism includes the slip spider, is provided with inside protruding lug in the slip spider, in the draw -in groove of lug embedding center tube lower part, sit sealing releasing mechanism and setting up in the center tube, including shear pin, give up elastic claw anddabber, give up the elastic claw suit outside the dabber, the elastic claw lower extreme of giving up is provided with boss and inside protruding interior bead to the evagination, and upper portion isprovided ...

Подробнее
20-10-2010 дата публикации

Compression type dual-sealing open hole packer

Номер: CN0101864922A
Принадлежит:

The invention provides a compression type dual-sealing open hole packer, which relates to the technical field of the manufacture of underground tools of horizontal open hole completion. The compression type dual-sealing open hole packer consists of an upper joint, a center pipe, sealing rubber tubes, a rubber tube seat, a lock sleeve, a cylinder sleeve, a locking ring, a piston, a sealing ring, a balance cylinder sleeve, a shearing ring and a lower joint. The compression type dual-sealing open hole packer of the invention is provided with two sealing rubber tubes, one setting hydraulic cylinder and one balance hydraulic cylinder, and the invention adopts the sectional packing design principle, provides the compression type dual-sealing open hole packer used for yield increase improvement operation of each production level, can solve the problem of incapability of meeting the horizontal open hole completion construction of the prior art, and can effectively improve the yield increase improvement ...

Подробнее
11-06-2014 дата публикации

Novel casing coupling positioner for coiled tubing

Номер: CN103850676A
Принадлежит:

The invention discloses a novel casing coupling positioner for a coiled tubing and relates to the field of downhole tools of an oil gas well for developing petroleum. The novel casing coupling positioner for the coiled tubing comprises a body, an upper cover cap, a positioning plate, spiral springs and a lower cover cap, the body is hollow column-shaped, an axial groove is opened in the outer wall of the body, the positioning plate is inserted in the axial groove, at least three uniformly distributed spiral grooves are mounted between the positioning plate and the axial groove, the upper cover cap and the lower cover cap are fixed on the body and respectively limit the positioning plate. The novel casing coupling positioner for the coiled tubing is capable of positioning precisely in a casing and realizing an obvious and uniform hanging load change when passing through the coupling and is very suitable for precisely positioning the coiled tubing in a non-air tight seal casing.

Подробнее
10-11-2010 дата публикации

Self-sealing setting ball seat

Номер: CN0101881142A
Принадлежит:

The invention discloses a self-sealing setting ball seat, which relates to the technical field of the manufacturing of underground packer tools in petroleum and natural gas industries. The invention provides the self-sealing setting ball seat, which adopts two-way sealing design and can realize the positive and negative sealing of a tubular column of an underground packer. The self-sealing setting ball seat comprises a self-sealing mechanism and a shell mechanism, wherein a self-sealing tube of the self-sealing mechanism is arranged in a self-sealing sleeve; four side holes are uniformly distributed at corresponding positions on the self-sealing tube and the self-sealing sleeve; and a shell of the shell mechanism is in threaded connection with a joint. The self-sealing setting ball seat solves the problem that only positive sealing can be performed in the prior art, and has the characteristic of the realization of positive and negative sealing in the construction of a high-pressure oil-gas ...

Подробнее
10-11-2010 дата публикации

Drillable ball injection sliding sleeve suitable for horizontal well

Номер: CN0101881143A
Принадлежит:

The invention provides a drillable ball injection sliding sleeve suitable for a horizontal well, belonging to the technical field of manufacturing downhole tools in oil and gas industry. The invention adopts a design way of opening before locking, and provides a drillable ball injection sliding sleeve suitable for a horizontal well which comprises a joint device and an elastic claw tube structure, wherein the upper joint and the lower joint of the joint device is connected by a thread; and the elastic claw tube structure is composed of elastic claw tubes. The invention overcomes the problems that the ball injection sliding sleeve in the prior art can not be self-locked after being opened, the ball seat can not be drilled, circumferential fixation does not exist and drilling and grinding can not be realized. The invention has the advantages of large designed outer diameter and relatively small level difference of seatbores and has operation tubular columns which can finish eight layer sections ...

Подробнее