CN113802992A - a plug-in tool - Google Patents
a plug-in tool Download PDFInfo
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- CN113802992A CN113802992A CN202010534807.9A CN202010534807A CN113802992A CN 113802992 A CN113802992 A CN 113802992A CN 202010534807 A CN202010534807 A CN 202010534807A CN 113802992 A CN113802992 A CN 113802992A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/021—Devices for subsurface connecting or disconnecting by rotation
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
本发明提出了一种回插工具，包括中心管，所述中心管的周向上设置有连接件，所述连接件上设置有若干带有外反向马牙扣的弹片；与所述中心管插接的回接筒，所述回接筒的内壁上设置有内反向马牙扣；其中，所述中心管与所述回接筒插接时，所述连接件设置在所述回接筒的内部，并且所述外反向马牙扣和所述内反向马牙扣相配合。本发明增大弹片张力，还设计带支撑缸的弹片锁紧机构，通过支撑缸支撑弹片，提高弹片上拉力。
The invention proposes a back-insertion tool, which includes a central tube, a connecting piece is arranged on the circumferential direction of the central tube, and a plurality of elastic pieces with an outer reverse horse tooth buckle are arranged on the connecting piece; A plug-in tie-back cylinder, the inner wall of the tie-back cylinder is provided with an inner reverse horse tooth buckle; wherein, when the central pipe is inserted into the tie-back cylinder, the connector is arranged on the tie-back cylinder the inside of the barrel, and the outer reverse horse tooth buckle and the inner reverse horse tooth buckle are matched. The invention increases the tension of the shrapnel, and also designs a shrapnel locking mechanism with a support cylinder, which supports the shrapnel through the support cylinder and improves the pulling force of the shrapnel.
Description
Technical Field
The invention relates to a back-plugging tool, and belongs to the field of oil and gas development tools.
Background
Along with the development of oil and gas reservoirs is promoted to a low-permeability compact reservoir, the wells are deeper and deeper, particularly the horizontal sections of horizontal wells are longer and longer, in the process of running the pipe columns, the friction force of the pipe columns in the horizontal sections is large, the running difficulty of the pipe columns is large, the pipe columns are usually required to be run in two times, the lower portions of the pipe columns are distributed in place and then released by adopting heavy weight of drill rods or drill collars, if the pipe columns are not connected back to the well mouth, the upper oil layer casing is large and is not beneficial to later operation, and therefore the pipe columns need to be connected with the lower pipe columns in a butt joint mode and connected back to the well mouth. The conventional back-inserting tool cannot be matched with a back-connecting cylinder of a feeding tool and cannot be directly used.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a back-inserting tool which is matched with a feeding tool for use, the back-inserting tool is pressurized to realize back-inserting after a pipe column is put in place by the feeding tool, the back-inserted pipe column can be taken out in a back-off manner through forward rotation after back-inserting, and meanwhile, in order to increase the tension of the elastic sheet, an elastic sheet locking mechanism with a supporting cylinder is also designed, and the elastic sheet is supported by the supporting cylinder, so that the tension on the elastic sheet is improved.
In order to achieve the above object, the present invention provides a back-insertion tool, including:
the connecting piece is arranged on the circumference of the central tube, and a plurality of elastic sheets with external reverse horse teeth buckles are arranged on the connecting piece;
the inner wall of the connecting cylinder is provided with an inner reverse horse-tooth buckle;
when the central tube is connected with the tieback cylinder in an inserting mode, the connecting piece is arranged inside the tieback cylinder, and the outer reverse horse teeth buckle is matched with the inner reverse horse teeth buckle.
The invention is further improved in that the upper end of the central tube is provided with an upper joint connected with an upstream assembly, the upper joint is connected with the central tube through threads, and the lower end of the upper joint is positioned on the outer wall of the upper part of the central tube and is in contact with a connecting piece.
The invention is further improved in that the connecting piece comprises an annular sleeve, and the elastic sheet is arranged at the lower end of the annular sleeve.
The invention has the further improvement that a plurality of strip-shaped grooves are axially arranged on the side wall of the central tube, and the elastic sheets of the connecting piece are clamped in the strip-shaped grooves, so that the connecting piece cannot rotate;
the lower end of the upper joint is clamped with the upper end of the connecting piece, so that the connecting piece cannot move up and down.
The invention has the further improvement that the outer wall of the central tube is provided with an annular step structure, the annular sleeve is clamped on the step structure, and a certain distance is reserved between the elastic sheet and the central tube so as to form an annular space;
the lower part of the central tube is provided with a supporting cylinder, and the supporting cylinder moves upwards through the pressure in the central tube to enter the annular space and support the elastic sheet to be spread.
The invention is further improved in that a lower connecting cylinder is arranged below the central pipe, and the supporting cylinder is fixed on the lower connecting cylinder through shear pins; an annular groove is formed in the inner wall of the supporting cylinder, and a cavity is formed between the annular groove and the lower connecting cylinder;
the pressure transmission hole transmits the pressure in the flow channel to the cavity, when the pressure is increased to a certain value, the shear pin is sheared off, and the supporting cylinder moves upwards to the annular space under the action of the pressure.
A further improvement of the invention is that the lower end of the upper joint and the upper end of the annular sleeve cooperate through a saw-tooth like structure.
The invention has the further improvement that the lower part of the central tube is provided with a first limiting step, and the inner wall of the tieback cylinder is provided with a second limiting step; the central pipe is inserted into the connecting-back cylinder and moves downwards until the first limiting step and the second limiting step are contacted.
The invention is further improved in that a combined sealing assembly is arranged on the outer wall of the lower part of the central tube, and after the central tube is inserted into the tieback cylinder, the combined sealing assembly seals the contact surface between the central tube and the tieback cylinder.
The invention is further improved in that the lower end of the central tube is provided with a guide head.
Compared with the prior art, the invention has the advantages that:
the back-inserting tool is matched with a feeding tool for use, the back-inserting tool is used for pressurizing to realize back insertion after a pipe column is put in place by the feeding tool, the back-inserted pipe column can be taken out in a back-off mode through forward rotation after back insertion, meanwhile, in order to increase the tension of the elastic sheet, an elastic sheet locking mechanism with a supporting cylinder is further designed, the elastic sheet is supported by the supporting cylinder, and the tension on the elastic sheet is improved.
The invention adopts the elastic sheet type structure, so that the back-inserting tool has simple structure and simple field operation, and the elastic sheet supporting cylinder is designed, so that the bending strength of the elastic sheet is improved, the elastic sheet can bear higher tensile force, and meanwhile, the backward buckling can be realized through forward transmission, and the safety and the repeatability of the back-inserting tool are improved.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of a back-insertion tool according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the construction of a center tube and connections showing a grooved configuration according to one embodiment of the invention;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2, showing the structure of the groove and the spring;
FIG. 4 is a schematic diagram of a center tube and connection according to an embodiment of the present invention, showing a configuration with a step configuration, before the shear pin is sheared;
FIG. 5 is a schematic structural view of a center tube and connections according to an embodiment of the present invention, showing a structure provided with a step structure, after the shear pins are cut;
FIG. 6 is a schematic view of a portion of the structure of FIG. 4, showing the structure of a sawtooth structure;
fig. 7 is a schematic structural diagram of a tieback cylinder according to an embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
The meaning of the reference symbols in the drawings is as follows: 1. the connecting device comprises a central tube, a connecting piece, a top joint, a groove, a step structure, a ring-shaped space, a channel, a flow passage, a pressure transfer hole, a lower connecting tube, a supporting cylinder, a cavity, a shear pin, a lower connecting tube, a supporting cylinder, a lower connecting tube, a cavity, a shear pin, a lower connecting tube, a combined sealing component, a guide head, a lower connecting tube and a lower connecting tube, a.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
FIG. 1 schematically shows a back insertion tool according to one embodiment of the present invention. According to the back-inserting tool, the back-inserting tool is matched with a feeding tool for use, the back-inserting tool is pressurized to realize back-inserting after a pipe column is put in place, the back-inserted pipe column can be taken out in a back-off mode through forward rotation after back-inserting, meanwhile, in order to increase the tension of the elastic sheet 32, an elastic sheet 32 locking mechanism with a supporting cylinder 17 is further designed, the supporting cylinder 17 supports the elastic sheet 32, and the tension on the elastic sheet 32 is increased.
Fig. 1 schematically shows a back-insertion tool according to an embodiment of the invention, comprising a central tube 1. The central tube 1 is cylindrical and has a hollow center. The cover is equipped with connecting piece 3 on the center tube 1, and connecting piece 3 is fixed in the week of center tube 1, be provided with a plurality of shell fragments 32 on the connecting piece 3, be provided with outer reverse horse tooth on the outer wall of shell fragment 32 and detain 33. The back-inserting tool of the embodiment further comprises a back-connecting cylinder 2, and an inner reverse molar buckle 23 (shown in fig. 7) is arranged on the inner wall of the back-connecting cylinder 2. When the central tube 1 is inserted into the tieback tube 2, the connecting piece 3 is arranged inside the tieback tube 2, and the outer reverse horse teeth buckle 33 is matched with the inner reverse horse teeth buckle 23.
When the back-inserting tool according to the embodiment is used, after the pipe column is put in place by the sending tool, the central pipe 1 and the back-connecting cylinder 2 in the back-inserting tool are back-inserted, and the back-inserted pipe column can be taken out by reversely buckling through forward rotation after back-insertion.
In one embodiment, as shown in fig. 1, 2 and 4, the upper end of the base pipe 1 is provided with an upper joint 4, and the upper joint 4 is used for connecting an upstream assembly. In this embodiment, the inner wall of the lower portion of the upper joint 4 is provided with an internal thread 41, the outer wall of the upper portion of the central tube 1 is provided with an external thread 41, and the upper portion of the central tube 1 is inserted into the lower portion of the upper joint 4 and connected by the thread 41. The lower end of the upper joint 4 is located on the outer wall of the upper part of the central tube 1 and is in contact with the connecting piece 3.
In one embodiment, the connecting member 3 includes a circular ring-shaped sleeve 31, and the elastic pieces 32 are arranged below the ring-shaped sleeve 31 and arranged side by side for a circle. Wherein, the size of the inner circle of the annular external member 31 matches with the outer circle of the central tube 1, and the annular external member 31 is sleeved on the central tube 1, and the elastic sheet 32 faces the direction of the tieback cylinder 2.
In a preferred embodiment, as shown in fig. 2 and 3, the side wall of the central tube 1 is provided with a plurality of strip-shaped grooves 11, and the number and the shape of the strip-shaped grooves 11 are matched with those of the elastic sheets 32. When the connecting piece 3 is sleeved on the central tube 1, the elastic pieces 32 on the connecting sleeves are respectively placed in the grooves 11, and the elastic pieces 32 are clamped through the grooves 11, so that the connecting piece 3 cannot rotate relative to the central tube 1. The lower end of the upper joint 4 is clamped with the upper end of the connecting piece 3, so that the connecting piece 3 cannot move up and down. In this way, the connecting piece 3 can be fixed on the central tube 1.
According to the back-inserting tool of the embodiment, the elastic sheet 32 can be clamped in the groove 11 through the groove 11 and cannot move left and right, and the upper end of the connecting piece 3 is blocked through the upper joint 4 so that the connecting piece cannot move up and down. In this way the connecting element 3 can be stationary relative to the central tube 1, ensuring that the connecting element 3 can also rotate with it when rotating the central tube 1.
In another preferred embodiment, as shown in fig. 4 and 5, an annular step structure is provided on the outer wall of the central tube 1, and the annular sleeve 31 of the connecting member 3 is snapped on the step structure. And a circle of structure with smaller radius than the step structure is formed below the step structure. The spring plate 32 is spaced from the central tube 1 to form an annular space 13. Wherein, the lower part of the central tube 1 is provided with a supporting cylinder 17, and the supporting cylinder 17 moves upwards by the pressure in the central tube 1 to enter the annular space 13 and support the elastic sheets 32 to be spread.
In the reinsertion tool according to the present embodiment, the elastic piece 32 is in a free state, and can be expanded or compressed. When the tieback cylinder 2 is connected with the central tube 1, the elastic sheet 32 has certain elasticity, the inner reverse latch 23 in the tieback cylinder 2 is matched with the outer reverse latch 33 on the elastic sheet 32, and finally the elastic sheet 32 is supported and opened through the supporting cylinder 17, so that the elastic sheet 32 is connected with the tieback cylinder 2.
In one embodiment, a lower connecting cylinder 16 is arranged below the central tube 1, and a circle of step-shaped structures are arranged on the lower connecting cylinder 16. The support cylinder 17 is fixed to the lower connector barrel 16 and the lower edge of the support cylinder 17 abuts against the stepped structure of the lower connector barrel 16. And, the lower portion of the support cylinder 17 is connected to the lower connecting cylinder 16 by a shear pin 19. An annular groove is formed in the inner wall of the supporting cylinder 17 and extends to the lower end face of the supporting cylinder 17, so that the inner wall face of the lower portion of the annular groove is in contact with the outer wall face of the upper portion of the lower connecting cylinder 16, and a cavity 18 is formed among the annular groove, the lower connecting cylinder 16 and the central tube 1. In this embodiment, the central tube 1 is provided with a pressure transfer hole 15 opened along the radial direction, and the pressure transfer hole 15 communicates with the flow channel 14 and the cavity 18 in the center of the central tube 1 and transfers the fluid pressure in the flow channel 14 to the cavity 18.
When the tieback tool according to the present embodiment is used, as shown in fig. 4, when the tieback cartridge 2 is connected to the tieback position on the base pipe 1, the tieback cartridge 2 and the pipe string are sent to the design position and released by the putting tool, pressure is applied to the base pipe 1, the pressure in the base pipe 1 is increased, and the pressure in the cavity 18 is increased through the pressure transmission hole 15. When the pressure in the central tube 1 and the chamber 18 increases to a certain value, the shear pin 19 between the support cylinder 17 and the lower connecting cylinder 16 is sheared off by the pressure. At this time, as shown in fig. 5, the supporting cylinder 17 is separated from the lower connecting cylinder 16, and the supporting cylinder 17 moves upward by the pressure, and its upper end enters into the annular space 13 between the elastic piece 32 and the center tube 1, thereby supporting the elastic piece 32 to be opened.
In one embodiment, as shown in fig. 6, the lower end of the upper fitting 4 and the upper end of the annular sleeve 31 are coupled by a serrated structure 42. In this embodiment, the lower end surface of the upper joint 4 is provided with a first saw-tooth structure, the upper end surface of the annular sleeve 31 of the connecting member 3 is provided with a second saw-tooth structure, and the first saw-tooth structure and the second saw-tooth structure are engaged with each other. The saw-toothed structure 42 may be rectangular saw teeth arranged side by side, or triangular or circular arc saw teeth. In the embodiment shown, the serrations 42 are rectangular in configuration.
When assembling the back-inserting tool according to the embodiment, the connecting piece 3 is firstly sleeved on the central tube 1, and then the upper joint 4 is installed on the upper part of the central tube 1 and screwed down by the thread 41. During screwing in the upper joint 4, the first sawtooth structure and the second sawtooth structure are matched with each other, so that the connecting piece 3 and the upper joint 4 are relatively static in the circumferential direction, and under the action of the sawtooth structure 42, the connecting piece 3 rotates and is static along with the upper joint 4. Thus, after the upper joint 4 is installed, the connecting body cannot rotate freely under the action of the sawtooth-shaped structure 42, and the connecting body is ensured to be static relative to the circumferential direction of the central tube 1.
In one embodiment, the lower part of the central tube 1 is provided with a first limit step 20, and the inner wall of the tieback cylinder 2 is provided with a second limit step 24. In the preferred embodiment, the first limit step 20 has a cross-section of a slope, which is tapered at the lower portion of the central tube 1. The second limit step 24 is matched with the first limit step 20 in structure, has the same shape and is opposite in direction. When the central tube 1 is inserted into the connecting cylinder 2 and moves downwards until the first limiting step 20 and the second limiting step 24 are contacted, the first limiting step 20 and the second limiting step 24 are overlapped, and the connecting surfaces of the first limiting step 20 and the second limiting step 24 are fully contacted. Through setting up first spacing step 20 and second spacing step 24 make center tube 1 and tieback section of thick bamboo 2 can play spacing effect when pegging graft, avoid center tube 1 to pass tieback section of thick bamboo 2.
In one embodiment, the lower portion of the center tube 1 is provided with a composite seal assembly 21, and the composite seal assembly 21 is a cylindrical structure that wraps around the outer wall of the lower portion of the center tube 1. Preferably, the composite seal assembly 21 is a seal structure having elasticity. In this embodiment, the composite seal assembly 21 is disposed below the first retention step 20. After the central tube 1 and the tieback cylinder 2 are plugged, the combined sealing assembly 21 seals the contact surface between the central tube 1 and the tieback cylinder 2.
In a preferred embodiment, the lower end of the central tube 1 is provided with a guiding head 22. The guide head 22 is provided with a tapered surface. During the process of inserting the central tube 1 and the tieback cylinder 2, the guide head 22 can guide the central tube 1 to move downwards in the tieback cylinder 2.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.
Claims (10)
1. A reinsertion tool, comprising:
the connecting piece is characterized by comprising a central tube (1), wherein a connecting piece (3) is arranged on the peripheral direction of the central tube (1), and a plurality of elastic sheets (32) with external reverse tinsel buttons (33) are arranged on the connecting piece (3); and
the inner wall of the tieback cylinder (2) is provided with an inner reverse jaw buckle (23);
when the central tube (1) is connected with the connecting cylinder (2) in an inserting mode, the connecting piece (3) is arranged inside the connecting cylinder (2), and the outer reverse horse teeth buckle (33) is matched with the inner reverse horse teeth buckle (23).
2. A reinsertion tool according to claim 1, characterized in that the upper end of the central tube (1) is provided with an upper joint (4) for connecting upstream components, the upper joint (4) is connected to the central tube (1) by a thread (41), and the lower end is located on the outer wall of the upper part of the central tube (1) and is in contact with the connecting piece (3).
3. Reinsertion tool according to claim 2, characterized in that the connector (3) comprises a ring-shaped sleeve (31), the spring plate (32) being arranged at the lower end of the ring-shaped sleeve (31).
4. The reinsertion tool as claimed in claim 3, characterized in that the side wall of the central tube (1) is provided with a plurality of strip-shaped grooves (11) along the axial direction, and the elastic sheet (32) of the connecting member (3) is clamped in the strip-shaped grooves (11) to prevent the connecting member (3) from rotating;
the lower end of the upper joint (4) is clamped with the upper end of the connecting piece (3), so that the connecting piece (3) cannot move up and down.
5. A reinsertion tool according to claim 3, characterized in that the outer wall of the central tube (1) is provided with an annular step structure, the annular sleeve (31) is clamped on the step structure, and the spring sheet (32) and the central tube (1) are at a certain distance so as to form an annular space (13);
the lower part of the central pipe (1) is provided with a supporting cylinder (17), and the supporting cylinder (17) moves upwards through the pressure in the central pipe (1) to enter the annular space (13) and support the elastic sheets (32) to be spread.
6. A reinsertion tool according to claim 5, characterized in that a lower connecting cylinder (16) is arranged below the central tube (1), the supporting cylinder (17) being fixed to the lower connecting cylinder (16) by means of shear pins (19); an annular groove is formed in the inner wall of the supporting cylinder (17), and a cavity (18) is formed between the annular groove and the lower connecting cylinder (16);
the central pipe (1) is provided with a flow channel (14) connecting the central pipe (1) and a pressure transmitting hole (15) of the cavity (18) along the radial direction, the pressure transmitting hole (15) transmits the pressure in the flow channel (14) into the cavity (18), when the pressure is increased to a certain value, the shear pin (19) is sheared off, and the supporting cylinder (17) moves upwards into the annular space (13) under the action of the pressure.
7. Reinsertion tool according to claim 5 or 6, characterized in that the lower end of the upper joint (4) and the upper end of the annular sleeve (31) cooperate through a saw-tooth structure (42).
8. Reinsertion tool according to one of claims 4 to 7, characterized in that the lower part of the central tube (1) is provided with a first stop step (20) and the inner wall of the tieback cartridge (2) is provided with a second stop step (24); the central tube (1) is inserted into the connecting-back tube (2) and moves downwards until the first limiting step (20) and the second limiting step (24) are contacted.
9. The back-inserting tool according to claim 8, characterized in that a combined sealing component (21) is arranged on the outer wall of the lower part of the central tube (1), and after the central tube (1) is inserted into the connecting cylinder (2), the combined sealing component (21) seals the contact surface between the central tube (1) and the connecting cylinder (2).
10. Reinsertion tool according to claim 9, characterized in that the lower end of the central tube (1) is provided with a guide head (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534807.9A CN113802992A (en) | 2020-06-12 | 2020-06-12 | a plug-in tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534807.9A CN113802992A (en) | 2020-06-12 | 2020-06-12 | a plug-in tool |
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| Publication Number | Publication Date |
|---|---|
| CN113802992A true CN113802992A (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010534807.9A Pending CN113802992A (en) | 2020-06-12 | 2020-06-12 | a plug-in tool |
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| CN (1) | CN113802992A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020121379A1 (en) * | 2001-03-01 | 2002-09-05 | Doane James Christopher | Lock ring for pipe slip pick-up ring |
| CN2898269Y (en) * | 2006-04-26 | 2007-05-09 | 中国石油天然气股份有限公司 | A multifunctional screen hanger |
| CN102444387A (en) * | 2011-12-13 | 2012-05-09 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN202273618U (en) * | 2011-10-29 | 2012-06-13 | 中国石油集团西部钻探工程有限公司 | Reliable releasing running tool |
| CN203463461U (en) * | 2013-09-11 | 2014-03-05 | 常州市武进凤市通信设备有限公司 | Novel anti-rotation threaded connector |
| CN204252886U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气集团公司 | A kind of Multilateral Wells pressure break tieback releasing tool |
| CN205979039U (en) * | 2016-07-29 | 2017-02-22 | 深圳市新国都技术股份有限公司 | Camera horizontal direction angle adjusting device |
| WO2017197608A1 (en) * | 2016-05-18 | 2017-11-23 | 思达斯易能源技术(集团)有限公司 | Tailpipe hanger assembly |
| CN207526432U (en) * | 2017-12-07 | 2018-06-22 | 中国石油化工股份有限公司 | A kind of retrievable tie back liner device of anchoring |
| CN208900073U (en) * | 2018-08-17 | 2019-05-24 | 东营市瑞丰石油技术发展有限责任公司 | Hanging packer for horizontal well fracturing |
| CN109899047A (en) * | 2017-12-07 | 2019-06-18 | 中国石油化工股份有限公司 | A kind of tieback fracturing process and the retrievable tieback pressure break pit shaft of anchoring |
| CN110374570A (en) * | 2019-08-05 | 2019-10-25 | 中国石油集团长城钻探工程有限公司 | A kind of bi-lateral horizontal well naked eye staged fracturing construction method |
| CN110651100A (en) * | 2017-03-08 | 2020-01-03 | 阿登纳控股有限公司 | Underground anchoring mechanism |
| CN210714550U (en) * | 2019-07-31 | 2020-06-09 | 中国石油天然气股份有限公司 | Expansion pipe subsidy top tie-back intubate and sealing device |
-
2020
- 2020-06-12 CN CN202010534807.9A patent/CN113802992A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020121379A1 (en) * | 2001-03-01 | 2002-09-05 | Doane James Christopher | Lock ring for pipe slip pick-up ring |
| CN2898269Y (en) * | 2006-04-26 | 2007-05-09 | 中国石油天然气股份有限公司 | A multifunctional screen hanger |
| CN202273618U (en) * | 2011-10-29 | 2012-06-13 | 中国石油集团西部钻探工程有限公司 | Reliable releasing running tool |
| CN102444387A (en) * | 2011-12-13 | 2012-05-09 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN203463461U (en) * | 2013-09-11 | 2014-03-05 | 常州市武进凤市通信设备有限公司 | Novel anti-rotation threaded connector |
| CN204252886U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气集团公司 | A kind of Multilateral Wells pressure break tieback releasing tool |
| WO2017197608A1 (en) * | 2016-05-18 | 2017-11-23 | 思达斯易能源技术(集团)有限公司 | Tailpipe hanger assembly |
| CN205979039U (en) * | 2016-07-29 | 2017-02-22 | 深圳市新国都技术股份有限公司 | Camera horizontal direction angle adjusting device |
| CN110651100A (en) * | 2017-03-08 | 2020-01-03 | 阿登纳控股有限公司 | Underground anchoring mechanism |
| CN207526432U (en) * | 2017-12-07 | 2018-06-22 | 中国石油化工股份有限公司 | A kind of retrievable tie back liner device of anchoring |
| CN109899047A (en) * | 2017-12-07 | 2019-06-18 | 中国石油化工股份有限公司 | A kind of tieback fracturing process and the retrievable tieback pressure break pit shaft of anchoring |
| CN208900073U (en) * | 2018-08-17 | 2019-05-24 | 东营市瑞丰石油技术发展有限责任公司 | Hanging packer for horizontal well fracturing |
| CN210714550U (en) * | 2019-07-31 | 2020-06-09 | 中国石油天然气股份有限公司 | Expansion pipe subsidy top tie-back intubate and sealing device |
| CN110374570A (en) * | 2019-08-05 | 2019-10-25 | 中国石油集团长城钻探工程有限公司 | A kind of bi-lateral horizontal well naked eye staged fracturing construction method |
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