CN108590578B - Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve - Google Patents
Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve Download PDFInfo
- Publication number
- CN108590578B CN108590578B CN201810379092.7A CN201810379092A CN108590578B CN 108590578 B CN108590578 B CN 108590578B CN 201810379092 A CN201810379092 A CN 201810379092A CN 108590578 B CN108590578 B CN 108590578B
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- sealing
- shell
- sealing sliding
- control ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 96
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000010008 shearing Methods 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 10
- 238000004033 diameter control Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a repeatable opening and closing sliding sleeve mechanism for a sleeve sliding sleeve, which comprises a shell, a sealing sliding sleeve and a lower sliding sleeve, wherein a liquid outlet hole is formed in the upper part of the shell, the sealing sliding sleeve and the lower sliding sleeve are both arranged in the shell, the liquid outlet hole is overlapped with one part of the sealing sliding sleeve, the lower end of the lower sliding sleeve is sealed in the lower hole of the sliding sleeve, an annular groove is formed in the inner wall of the upper part of the sealing sliding sleeve, the sealing sliding sleeve and the lower sliding sleeve are connected through a closed shearing pin, the lower sliding sleeve and the shell are fixedly connected through an opened shearing pin, a first groove is formed between the sealing sliding sleeve and the lower sliding sleeve, the first groove is formed below the closed shearing; the locking structure is characterized by further comprising a locking structure, wherein the first part of the locking structure is arranged on the lower portion of the inner wall of the shell, and the second part of the locking structure is arranged on the lower sliding sleeve. The invention solves the problems that the existing casing sliding sleeve tool can not be closed, the well completion pipe column can not keep the full drift diameter and the like, and can effectively reduce the construction cost of shaft treatment, horizon plugging and the like in the later period of the oil and gas field.
Description
Technical Field
The invention belongs to the technical field of oil and gas field development, and particularly relates to a sliding sleeve mechanism capable of being repeatedly opened and closed for a sleeve sliding sleeve.
Background
The development of the horizontal well of the oil-gas field at present widely adopts a casing sliding sleeve well completion worker and a light casing perforation well completion worker, wherein the casing sliding sleeve is mainly opened by throwing balls. Tools which influence the inner drift diameter, such as a plurality of ball seats and the like, exist in the sleeve sliding sleeve well completion string, the full drift diameter cannot be realized, and the later-stage shaft maintenance and measure transformation are not facilitated; the casing perforation completion process cannot repair the casing after perforation, and is not beneficial to later-stage horizon plugging operation.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art and meet the requirements of repeated use and full drift diameter of a well completion shaft.
The technical scheme provided by the invention is as follows:
a repeatable opening and closing sliding sleeve mechanism for a sleeve sliding sleeve comprises a shell, a sealing sliding sleeve and a lower sliding sleeve, wherein a liquid outlet hole is formed in the upper portion of the shell, the sealing sliding sleeve and the lower sliding sleeve are arranged in the shell, the liquid outlet hole is overlapped with one portion of the sealing sliding sleeve, the upper end of the lower sliding sleeve is arranged in a lower hole of the sealing sliding sleeve, an annular groove is formed in the inner wall of the upper portion of the sealing sliding sleeve, the sealing sliding sleeve and the lower sliding sleeve are connected through a closed shearing pin, the lower sliding sleeve and the shell are fixedly connected through an opened shearing pin, the sealing sliding sleeve and the lower sliding sleeve can move axially, a first groove is formed between the sealing sliding sleeve and the lower sliding sleeve, the first groove is formed below the closed shearing pin, and a variable-diameter control;
the locking structure comprises a first part and a second part which are matched with each other, the first part is arranged on the lower portion of the inner wall of the shell, and the second part is arranged on the lower sliding sleeve.
The novel sliding sleeve is characterized in that a second groove is arranged between the lower portion of the inner wall of the shell and the sliding sleeve, the second groove is big end to end, the smaller portion of the second groove is arranged on the outer wall of the sliding sleeve and penetrates through the whole second groove, the larger portion of the second groove is composed of a groove arranged on the inner wall of the shell and the lower end of the smaller portion of the outer wall of the sliding sleeve, the first portion of the second groove is a sawtooth locking ring arranged in the larger portion, the second portion of the second groove is a sawtooth thread arranged on the outer wall of the sliding sleeve, and the sawtooth thread is arranged on the upper portion.
The diameter-variable control ring is a C-shaped position control ring, and the outer circle of the diameter-variable control ring is provided with a chamfer.
At least two sealing assemblies are arranged on the sealing sliding sleeve and are symmetrically arranged along the liquid outlet hole respectively.
When the sliding sleeve mechanism needs to be opened, the opening tool is sent to a preset position, the opening tool is anchored in the lower sliding sleeve and then seals an upper space and a lower space, then the upper space is pressurized, when the pressure difference between the upper space and the lower space is larger than the preset shearing force of the opening shearing pin, the opening shearing pin is sheared off, the opening tool, the lower sliding sleeve and the sealing sliding sleeve form a combined body and moves downwards, the liquid outlet hole in the shell is exposed to realize opening, when the combined body moves downwards to the lowest end, the lower sliding sleeve and the shell are locked by the locking structure, and fracturing construction can be carried out. After the fracturing construction is finished, the opening tool is lifted out, and the shaft keeps the full drift diameter, so that the production operation can be put into operation.
When the sliding sleeve mechanism needs to be closed, a closing tool fishing spear is sent to a preset position, the fishing spear is clamped in an annular groove in the inner wall of the sealing sliding sleeve, the fishing spear is lifted up to apply upward tension to the sealing sliding sleeve, the lower sliding sleeve and the sealing sliding sleeve are connected together through a closing shear pin and a variable-diameter control ring, the lifted tension acts on the combined body, after the closing shear pin is sheared off, the sealing sliding sleeve is stressed to move upwards to force the variable-diameter control ring to contract radially, at the moment, the sealing sliding sleeve is separated from the lower sliding sleeve, the sealing sliding sleeve moves upwards along with the closing tool to block a liquid outlet hole in the shell, and the sleeve sliding sleeve is closed; when the sealing sliding sleeve moves upwards to block the liquid outlet hole of the shell, the diameter-variable control ring loses external restraint and bounces again to prevent the sealing sliding sleeve from moving downwards, so that the sliding sleeve mechanism keeps a closed state.
The opening tool comprises a sealing component and a slip anchoring structure which are sequentially connected from top to bottom.
When the sliding sleeve mechanism needs to be opened again, the closing tool is put in to drag the spear to the annular groove of the inner wall of the sealing sliding sleeve, pressure is applied downwards to enable the diameter-variable control ring to shrink radially, the sealing sliding sleeve moves downwards until the liquid outlet hole is completely opened, meanwhile, the diameter-variable control ring bounces out in the first groove, and the sealing sliding sleeve and the lower sliding sleeve are connected, locked and locked again
The invention has the beneficial effects that:
the sliding sleeve mechanism capable of being repeatedly opened and closed for the sleeve sliding sleeve provided by the invention can realize the opening, selective closing and reopening of the sleeve sliding sleeve by using a special tool for connecting the coiled tubing, and a well completion shaft keeps a full drift diameter. The problems that the existing sleeve sliding sleeve tool cannot be closed, a well completion pipe column cannot keep a full drift diameter and the like are solved, and construction cost of shaft treatment, layer position plugging and the like in the later stage of an oil and gas field can be effectively reduced.
The following will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of an open implementation of the present invention;
FIG. 4 is a schematic view of the open state of the present invention;
FIG. 5 is a partial enlarged view of FIG. 4 at B;
FIG. 6 is a schematic diagram of a closed embodiment of the present invention;
FIG. 7 is a schematic diagram of a C-shaped position control loop configuration;
FIG. 8 is a schematic diagram of a shutdown implementation of the present invention;
FIG. 9 is a schematic view of the closed state of the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at D;
fig. 11 is a schematic view of the present invention in a reopened state.
In the figure: 1. a seal assembly; 2. sealing the sliding sleeve; 3. a housing; 4. closing the shear pin; 5. a C-shaped position control loop; 6. a lower sliding sleeve; 7. opening the shearing pin; 8. a saw-tooth lock ring; 9. a coiled tubing; 10. opening the tool; 11. closing the tool; 12. a liquid outlet hole; 13. an annular groove; 14. a first groove; 15. a second groove.
Detailed Description
Example 1:
the embodiment provides a repeatable opening and closing sliding sleeve mechanism for a sleeve sliding sleeve, which comprises a shell 3, a sealing sliding sleeve 2 and a lower sliding sleeve 6, the upper part of the shell 3 is provided with a liquid outlet 12, the sealing sliding sleeve 2 and the lower sliding sleeve 6 are both arranged in the shell 3, the liquid outlet hole 12 is overlapped with a part of the sealing sliding sleeve 2, the upper end of the lower sliding sleeve 6 is sealed in the lower hole of the sliding sleeve 2, the inner wall of the upper part of the sealing sliding sleeve 2 is provided with an annular groove 13, the sealing sliding sleeve 2 is connected with the lower sliding sleeve 6 through a closed shearing pin 4, the lower sliding sleeve 6 is fixedly connected with the shell 3 by opening a shearing pin 7, the sealing sliding sleeve 2 and the lower sliding sleeve 6 can axially move, a first groove 14 is arranged between the sealing sliding sleeve 2 and the lower sliding sleeve 6, the first groove 14 is arranged below the closed shearing pin 4, and a variable-diameter control ring is arranged in the first groove 14;
the locking structure comprises a first part and a second part which are matched with each other, the first part is arranged on the lower part of the inner wall of the shell 3, and the second part is arranged on the lower sliding sleeve 6.
The working process is as follows: the sliding sleeve mechanism provided by the present embodiment is run into the design position together with the casing. When the sliding sleeve mechanism needs to be opened, the opening tool 10 is sent to a preset position, the opening tool 10 is anchored in the lower sliding sleeve 6 and then seals an upper space and a lower space, then the upper space is pressurized, when the pressure difference between the upper space and the lower space is larger than the preset shearing force of the opening shearing pin 7, the opening shearing pin 7 is sheared off, the opening tool 10, the lower sliding sleeve 6 and the sealing sliding sleeve 2 form a combined body and move downwards, the liquid outlet hole 12 on the shell 3 is exposed to realize opening, and when the combined body moves downwards to the lowest end, the lower sliding sleeve 6 and the shell 3 are locked by the locking structure, and then fracturing construction can be carried out. After fracturing construction is finished, the opening tool 10 is lifted out, and the shaft keeps the full drift diameter, so that production operation can be carried out.
When the sliding sleeve mechanism needs to be closed, a closing tool 11 is sent into a preset position, the fishing spear is clamped in an annular groove 13 on the inner wall of the sealing sliding sleeve 2, the fishing spear is lifted up to apply upward tension to the sealing sliding sleeve 2, the lower sliding sleeve 6 and the sealing sliding sleeve 2 are connected together through a closing shear pin 4 and a variable-diameter control ring, the lifted tension acts on the combined body, after the closing shear pin 4 is sheared off, the sealing sliding sleeve 2 is stressed to move upwards to force the variable-diameter control ring to radially contract, at the moment, the sealing sliding sleeve 2 is separated from the lower sliding sleeve 6, the sealing sliding sleeve 2 moves upwards along with the closing tool 11 to seal a liquid outlet hole 12 on the shell 3, and the sleeve sliding sleeve is closed; when the sealing sliding sleeve 2 moves upwards to block the liquid outlet 12 of the shell 3, the diameter-variable control ring loses external restraint and bounces again to prevent the sealing sliding sleeve 2 from moving downwards, so that the sliding sleeve mechanism keeps a closed state.
When the sliding sleeve mechanism needs to be opened again, the closing tool 11 is put in to drag for the spear to the annular groove 13 on the inner wall of the sealing sliding sleeve 2, pressure is applied downwards, the variable-diameter control ring is made to shrink radially, the sealing sliding sleeve 2 moves downwards until the liquid outlet hole 12 is completely opened, meanwhile, the variable-diameter control ring bounces in the first groove 14, and the sealing sliding sleeve 2 and the lower sliding sleeve 6 are connected and locked again.
Example 2:
on the basis of embodiment 1, the present embodiment provides a repeatable opening and closing sliding sleeve mechanism for a casing sliding sleeve as shown in fig. 1 and fig. 2, wherein a second groove 15 is provided between the lower portion of the inner wall of the casing 3 and the lower sliding sleeve 6, the second groove 15 is large in size, a smaller portion is provided on the outer wall of the lower sliding sleeve 6 and penetrates through the whole second groove 15, a larger portion is composed of the groove provided on the inner wall of the casing 3 and the lower end of the smaller portion provided on the outer wall of the lower sliding sleeve 6, the first portion is a sawtooth locking ring 8 provided in the larger portion, the second portion is a sawtooth thread provided on the outer wall of the lower sliding sleeve 6, and the sawtooth thread is provided on the upper portion of the smaller portion of the second groove 15.
The diameter-variable control ring is a C-shaped position control ring 5, and the outer circle of the diameter-variable control ring is provided with a chamfer.
The working process is as follows: when the sliding sleeve mechanism needs to be opened, as shown in fig. 3, an opening tool 10 is conveyed to a preset position by using a continuous oil pipe 9, the opening tool 10 is anchored in the lower sliding sleeve 6 and then seals an upper space and a lower space, then the upper space is pressurized, when the pressure difference between the upper space and the lower space is greater than the preset shearing force of the opening shearing pin 7, the opening shearing pin 7 is sheared off, the opening tool 10, the lower sliding sleeve 6 and the sealing sliding sleeve 2 form a combined body and moves downwards, and a liquid outlet hole 12 on the shell 3 is exposed to realize opening, so that fracturing can be carried out, as shown in fig. 4; as shown in fig. 5, when the united body moves downwards to the lowest end, the sawtooth thread on the lower sliding sleeve 6 enters the sawtooth lock ring 8 in the second groove 15, and the lower sliding sleeve 6 is locked and can not move upwards, and after the fracturing construction is finished, the opening tool 10 is finally lifted out, so that the fracturing and production operation can be carried out. When fracturing construction is carried out, because certain frictional resistance exists between the opening tool 10 and the lower sliding sleeve 6, the combined body formed by the lower sliding sleeve 6 and the sealing sliding sleeve 2 can be prevented from lifting along with the opening tool 10, and the sliding sleeve mechanism is prevented from being closed again.
When the sliding sleeve mechanism needs to be closed, as shown in fig. 6, a fishing spear of a closing tool 11 is sent to a preset position by a continuous oil pipe 9, the fishing spear is clamped in an annular groove 13 on the inner wall of the sealing sliding sleeve 2, the fishing spear is lifted up to apply upward tension to the sealing sliding sleeve 2, because the lower sliding sleeve 6 and the sealing sliding sleeve 2 are connected together by a closing shear pin 4 and a C-shaped position control ring 5, the lifted-up tension acts on the combined body, because the lower sliding sleeve 6 is locked by a sawtooth locking ring 8 and can not move upwards, the upward tension applied to the sealing sliding sleeve 2 acts on the closing shear pin 4 firstly, when the closing shear pin 4 is sheared off, the tension acts on the C-shaped position control ring 5, when the sealing sliding sleeve 2 is forced to move upwards by force, the C-shaped position control ring 5 contracts radially, and at the moment, the sealing sliding sleeve 2 and the lower sliding sleeve 6 are unlocked, the sealing sliding sleeve 2 moves upwards along with the closing tool 11 to block the liquid outlet hole 12 on the shell 3, so as to close the sleeve sliding sleeve, as shown in fig. 8. As shown in fig. 9, when the sealing sliding sleeve 2 moves upwards to close the liquid outlet 12 of the housing 3, the C-shaped position control ring 5 loses external restraint and springs back (as shown in fig. 10), so as to prevent the sealing sliding sleeve 2 from moving downwards, and keep the casing sliding sleeve in a closed state.
When the sleeve sliding sleeve needs to be opened again, as shown in fig. 11, the coiled tubing 9 is used for running the closing tool 11 into the annular groove 13 on the inner wall of the sealing sliding sleeve 2, pressure is applied downwards, when the radial component force generated by the pressing force is larger than the radial contraction resistance of the C-shaped position control ring 5, the C-shaped position control ring 5 is forced to contract radially, the sealing sliding sleeve 2 moves downwards until the sleeve sliding sleeve is completely opened, and meanwhile, the C-shaped position control ring 5 bounces in the first groove 14, and the lower sliding sleeve 6 and the sealing sliding sleeve 2 are locked again.
When the sliding sleeve mechanism needs to be opened again, the closing tool 11 is put in to drag for the spear to the annular groove 13 on the inner wall of the sealing sliding sleeve 2, pressure is applied downwards, the variable-diameter control ring is made to shrink radially, the sealing sliding sleeve 2 moves downwards until the liquid outlet hole 12 is completely opened, meanwhile, the variable-diameter control ring bounces in the first groove 14, and the sealing sliding sleeve 2 and the lower sliding sleeve 6 are connected and locked again.
Wherein the opener tool 10 includes a sealing member and a slip anchor structure connected in series from top to bottom, as shown in fig. 3. The C-shaped position control ring 5 is shown in fig. 7, and its outer circumference is chamfered as shown in fig. 10. As shown in fig. 1, at least two sealing assemblies 1 are mounted on the sealing sliding sleeve 2, and the two sealing assemblies 1 are respectively and symmetrically arranged along the liquid outlet 12.
The parts of the above embodiments not specifically described are within the common general knowledge and the common general knowledge in the field of the technology and will not be described in detail herein.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (7)
1. A repeatable opening and closing sliding sleeve mechanism for a sleeve sliding sleeve is characterized in that: comprises a shell (3), a sealing sliding sleeve (2) and a lower sliding sleeve (6), wherein a liquid outlet hole (12) is formed in the upper part of the shell (3), the sealing sliding sleeve (2) and the lower sliding sleeve (6) are arranged in the shell (3), the liquid outlet hole (12) is partially overlapped with the sealing sliding sleeve (2), the upper end of the lower sliding sleeve (6) is arranged in the lower hole of the sealing sliding sleeve (2), an annular groove (13) is formed in the inner wall of the upper part of the sealing sliding sleeve (2), the sealing sliding sleeve (2) and the lower sliding sleeve (6) are connected by closing a shearing pin (4), the lower sliding sleeve (6) is fixedly connected with the shell (3) by opening the shearing pin (7), the sealing sliding sleeve (2) and the lower sliding sleeve (6) can axially move, a first groove (14) is formed between the sealing sliding sleeve (2) and the lower sliding sleeve (6), and the first groove (14) is arranged below the shearing pin (4), a variable-diameter control ring is arranged in the first groove (14);
the locking structure comprises a first part and a second part which are matched with each other, the first part is arranged at the lower part of the inner wall of the shell (3), and the second part is arranged on the lower sliding sleeve (6);
be equipped with second recess (15) between shell (3) inner wall lower part and lower sliding sleeve (6), second recess (15) big end down, sliding sleeve (6) outer wall and whole second recess (15) are located down to the less part, and the major part comprises the recess of locating shell (3) inner wall and the less part lower extreme of locating sliding sleeve (6) outer wall down, sawtooth catch (8) in the major part are located to the first part, the sawtooth screw thread of sliding sleeve (6) outer wall is located down for the second part to the second part, and the less part upper portion of second recess (15) is located to this sawtooth screw thread.
2. A repeatable on-off sliding sleeve mechanism for casing sliding sleeves according to claim 1, wherein: the diameter-variable control ring is a C-shaped position control ring (5), and the outer circle of the diameter-variable control ring is provided with a chamfer.
3. A repeatable on-off sliding sleeve mechanism for casing sliding sleeves according to claim 1, wherein: at least two sealing assemblies (1) are arranged on the sealing sliding sleeve (2), and the two sealing assemblies (1) are symmetrically arranged along the liquid outlet hole (12) respectively.
4. A re-openable and closable sliding sleeve mechanism for a casing sliding sleeve according to any one of claims 1 to 3, wherein: when the sliding sleeve mechanism needs to be opened, an opening tool (10) is sent to a preset position, the opening tool (10) is anchored in the lower sliding sleeve (6) and then seals an upper space and a lower space, then the upper space is pressurized, when the pressure difference between the upper space and the lower space is larger than the preset shearing force of the opening shearing pin (7), the opening shearing pin (7) is sheared off, the opening tool (10), the lower sliding sleeve (6) and the sealing sliding sleeve (2) form a combined body and move downwards, a liquid outlet hole (12) in the shell (3) is exposed to realize opening, when the combined body moves downwards to the lowest end, the lower sliding sleeve (6) and the shell (3) are locked by a locking structure, and then fracturing construction can be carried out; after fracturing construction is finished, the opening tool (10) is lifted out, and the shaft keeps the full drift diameter, so that production operation can be carried out.
5. The repeatable on-off sliding sleeve mechanism for a casing sliding sleeve according to claim 4, wherein: when the sliding sleeve mechanism needs to be closed, a closing tool (11) is sent into a preset position, the fishing spear is clamped in an annular groove (13) on the inner wall of the sealing sliding sleeve (2), the fishing spear is lifted up to apply upward tension to the sealing sliding sleeve (2), the sealing sliding sleeve (2) is connected with the variable-diameter control ring through the closing shear pin (4) because the lower sliding sleeve (6) and the sealing sliding sleeve (2) are connected together, the lifted tension acts on a combined body consisting of the lower sliding sleeve (6), the sealing sliding sleeve (2), the closing shear pin (4) and the variable-diameter control ring, after the closing shear pin (4) is sheared off, the sealing sliding sleeve (2) is forced to move upwards to force the variable-diameter control ring to contract radially, the sealing sliding sleeve (2) is separated from the lower sliding sleeve (6), the sealing sliding sleeve (2) moves upwards along with the closing tool (11), and a liquid outlet hole (12) on the, the closing of the sleeve sliding sleeve is realized; when the sealing sliding sleeve (2) moves upwards to block the liquid outlet (12) of the shell (3), the variable-diameter control ring loses external restraint and bounces again to prevent the sealing sliding sleeve (2) from moving downwards, so that the sliding sleeve mechanism keeps a closed state.
6. The repeatable on-off sliding sleeve mechanism for a casing sliding sleeve according to claim 4, wherein: the opening tool (10) comprises a sealing component and a slip anchoring structure which are sequentially connected from top to bottom.
7. The repeatable on-off sliding sleeve mechanism for a casing sliding sleeve according to claim 5, wherein: when the sliding sleeve mechanism needs to be opened again, a closing tool (11) is put in to drag the spear to the annular groove (13) of the inner wall of the sealing sliding sleeve (2), pressure is applied downwards to enable the diameter-variable control ring to shrink radially, the sealing sliding sleeve (2) moves downwards until the liquid outlet hole (12) is completely opened, meanwhile, the diameter-variable control ring bounces off in the first groove (14), and the sealing sliding sleeve (2) and the lower sliding sleeve (6) are connected and locked again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379092.7A CN108590578B (en) | 2018-04-25 | 2018-04-25 | Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379092.7A CN108590578B (en) | 2018-04-25 | 2018-04-25 | Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108590578A CN108590578A (en) | 2018-09-28 |
| CN108590578B true CN108590578B (en) | 2020-07-28 |
Family
ID=63609223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810379092.7A Active CN108590578B (en) | 2018-04-25 | 2018-04-25 | Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108590578B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022026568A1 (en) * | 2020-07-28 | 2022-02-03 | Baker Hughes Oilfield Operations Llc | Slurry outlet with seal protection system |
| CN112780227B (en) * | 2021-02-20 | 2023-06-23 | 中海油能源发展股份有限公司 | Infinite-level well cementation sliding sleeve capable of preventing cement from being solidified and assembling and operating method thereof |
| CN114809986B (en) * | 2022-04-12 | 2024-02-13 | 中海油田服务股份有限公司 | Double-pipeline control hydraulic sliding sleeve and well completion tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9677380B2 (en) * | 2012-12-13 | 2017-06-13 | Weatherford Technology Holdings, Llc | Sliding sleeve having inverting ball seat |
| CN105317414A (en) * | 2014-05-28 | 2016-02-10 | 中国石油化工股份有限公司 | Staged fracturing device and method for fracturing through device |
| CN104234662B (en) * | 2014-09-12 | 2016-09-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of reducing sliding sleeve switch |
| CN104847325B (en) * | 2015-05-15 | 2017-11-10 | 中国海洋石油总公司 | It is a kind of mechanically or hydraulically to trigger infinite stages segmentation transformation sliding bush apparatus |
| CN206737901U (en) * | 2017-05-19 | 2017-12-12 | 中国石油集团川庆钻探工程有限公司 | The all-pass radial sector fracturing sliding bush opened using coiled tubing |
| CN107366522B (en) * | 2017-08-01 | 2023-08-18 | 中国石油天然气集团有限公司 | Sliding sleeve opening tool with variable length and sleeve sliding sleeve thereof |
-
2018
- 2018-04-25 CN CN201810379092.7A patent/CN108590578B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108590578A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108590578B (en) | Sliding sleeve mechanism capable of being repeatedly opened and closed for sleeve sliding sleeve | |
| CN208473812U (en) | A kind of spring-compressed sealing pre-set type underground throttling device and delivery tool | |
| CN101892823A (en) | Method for throwing and fishing out underground restrictor from gas well without utilizing steel wires | |
| CN208950556U (en) | A kind of easily deblocking pre-set type underground throttling device | |
| CN206830123U (en) | A kind of HTHP packer of band elasticity deblocking ratchet and balance bypass | |
| CN111075388B (en) | Hydraulic releasing packer and method for preventing midway setting | |
| US10450837B2 (en) | Sleeve fracturing assembly, device using the same and method for using the same | |
| CN111075407B (en) | Underground throttling production device for gas well full life cycle and application method thereof | |
| CN110905443A (en) | Soluble metal sealing fracturing bridge plug | |
| CN104453757B (en) | Thick oil steam drive unseals bidirectionally anchoring tubing anchor | |
| CN108625815B (en) | Filling type external pipe packer | |
| CN105201446A (en) | Bidirectional pressure-bearing blanking plug | |
| CN107304658B (en) | A kind of penetration type plugging device | |
| CN202531066U (en) | Blending and diluting valve capable of examining seal annularly for oil and gas fields | |
| CN110617026B (en) | Downhole operation device and method | |
| CN114809980A (en) | Hydraulic temporary bridge plug | |
| CN103291235B (en) | Tool for sending hydraulic packer into well | |
| CN203347718U (en) | Running tool for hydraulic packer | |
| CN108999589B (en) | Downhole blowout preventer for workover operation | |
| CN107304668A (en) | A kind of oil recovery gas method | |
| CN105201443B (en) | A kind of blanking plug in oil pipe launched for steel wire | |
| CN112282689B (en) | Soluble packer and using method thereof | |
| RU2387798C1 (en) | Device for closing troublesome zone in well-drilling | |
| CN112983352B (en) | Stratum protection tool for oil and gas field well completion engineering | |
| CN105484692B (en) | A kind of comprehensive shaft mouth operation instrument and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201027 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1203 Patentee before: CHANGQING DOWNHOLE TECHNOLOGY OPERATION COMPANY OF CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |