CN114458225A - Packer with safety valve - Google Patents
Packer with safety valve Download PDFInfo
- Publication number
- CN114458225A CN114458225A CN202210139527.7A CN202210139527A CN114458225A CN 114458225 A CN114458225 A CN 114458225A CN 202210139527 A CN202210139527 A CN 202210139527A CN 114458225 A CN114458225 A CN 114458225A
- Authority
- CN
- China
- Prior art keywords
- packer
- sleeve
- safety valve
- piston
- pin
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000010008 shearing Methods 0.000 claims abstract description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 230000000670 limiting effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1294—Packers; Plugs with mechanical slips for hooking into the casing characterised by a valve, e.g. a by-pass valve
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a packer with a safety valve, which comprises a sealing barrel, wherein the sealing barrel is of a cylindrical structure, a valve seat and a connecting piston are arranged above the sealing barrel, the connecting piston is arranged in the middle of the sealing barrel, a shearing pin is started, the shearing pin is started and arranged below an inner slip body, a second connecting sleeve is arranged below the sealing barrel, and an unpacking sleeve is arranged on the outer side of the lower end of the second connecting sleeve. This take relief valve packer, packer itself takes the relief valve, under the pressurized condition in the well, need not the kill-job, the valve plate can be closed in the pressure of throwing the ball, increase the abrupt packing element protection ring from top to bottom during packing element integrated design, and through two-way tubbiness slips, can with 360 degrees contacts of casing wall, the compressive capacity is higher, and the power distribution of effect on the sleeve pipe is more even, and the position of slips is under the packing element, can prevent in debris from falling into the slips, make deblocking and retrieve and become safe and reliable.
Description
Technical Field
The invention relates to the technical field of packers, in particular to a packer with a safety valve.
Background
The packer is a special tool for sealing and isolating oil, gas and water layers in an underground casing or an open hole, is installed under the action of external force, and realizes the layered test, the layered oil extraction, the layered water injection, the layered reconstruction and the water layer plugging of oil and water wells, and is widely used;
however, the commonly used packer with safety valve still has the following disadvantages:
1. the existing packer with a safety valve is inconvenient to install and poor in sealing property in the actual use process, and is easy to leak in use, so that the actual sealing effect is influenced;
2. the existing packer with a safety valve is inconvenient to control a valve plate in the using process, has a protection effect on a rubber cylinder and has a short service life;
3. the existing packer with a safety valve is not high in pressure resistance, and sundries easily enter the slips, so that the packer is inconvenient to recycle after use, and the practicability is not high.
We therefore propose a packer with a safety valve in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a packer with a safety valve, which solves the problems that the packer is inconvenient to install, has poor sealing performance, is easy to leak during use, influences the actual sealing effect, is inconvenient to control a valve plate during use, has a low protection effect on a rubber cylinder, has a short service life, has low pressure resistance, is easy to allow sundries to enter a slip, is inconvenient to recycle after use and has low practicability in the practical use process, and the prior art provides a packer with a safety valve.
In order to achieve the purpose, the invention provides the following technical scheme: a packer with a safety valve comprises a sealing barrel, wherein the sealing barrel is of a cylindrical structure, a valve seat is arranged above the sealing barrel, and a valve plate is arranged below the valve seat;
the connecting piston is arranged in the middle of the sealing cylinder, a piston outer cylinder is arranged above the connecting piston, and a lower end ring is arranged above the piston outer cylinder;
further comprising:
the starting shearing pin is arranged below the inner slip body, the upper part of the inner slip body is connected with the inner slip outer barrel, and the inner slip outer barrel is clamped at the lower end of the connecting piston;
the second connecting sleeve is arranged below the sealing cylinder, an unsealing sleeve is arranged on the outer side of the lower end of the second connecting sleeve, and a connecting elastic ring is arranged at the connecting position of the second connecting sleeve and the unsealing sleeve.
Preferably, the lower end of the valve plate is provided with a first mandrel, the first mandrel is connected inside the sealing cylinder in a penetrating manner, and the outer side of the upper end of the first mandrel is provided with a second mandrel.
Preferably, the lower end of the second mandrel is provided with a lower end ring for connection, the lower end ring is connected between the first mandrel and the connecting piston in a clamping manner, and the upper end of the connecting piston is provided with a piston outer cylinder.
Preferably, the lower side of connecting the piston is provided with the interior slips urceolus, and the inside of interior slips urceolus installs the interior slips body, and the outside at the fixed cover upper end of pin is connected in interior slips body block moreover.
Preferably, the middle part of the pin fixing sleeve is inserted with a starting shearing pin with a limiting effect, the lower end of the pin fixing sleeve is attached with a first connecting sleeve, and the first connecting sleeve is clamped at the upper end of the upper cone.
Preferably, an integral barrel-shaped slip is arranged on the outer side of the lower end of the upper cone, a lower cone is clamped on the inner side of the lower end of the integral barrel-shaped slip, and the lower end of the lower cone is connected with the second connecting sleeve.
Preferably, the deblocking cover sets up the inside at the lower clutch, and the lower clutch installs the lower extreme at a sealed section of thick bamboo to the outside at lower clutch middle part is pegged graft and is had the deblocking pin that is used for the deblocking.
Preferably, the deblocking pin is in the outer surface of lower clutch and is the equal angle setting, and laminates each other between lower clutch and the deblocking cover to the inboard of deblocking cover and the mutual block of lower extreme of first dabber.
Compared with the prior art, the invention has the beneficial effects that: the packer with the safety valve has the advantages that in the actual use process, the packer is provided with the safety valve, the valve plate can be closed without killing a well under the condition of pressure in the well, the use is very convenient, the upper and lower protruding-proof rubber sleeve protection rings are added in the combined design of the rubber sleeve, the bidirectional barrel-shaped slips can be in 360-degree contact with the wall of a casing, the pressure resistance is higher, the force acting on the casing is distributed more uniformly, and sundries can be prevented from falling into the slips by the position of the slips below the rubber sleeve, so that the deblocking and the recovery are safe and reliable;
1. the sealing cylinder and the valve plate are arranged, and the valve plate is arranged above the sealing cylinder, so that the valve plate can be controlled to be opened and closed without killing a well under the condition of pressure in the well, the operation is convenient and fast, and the use is very convenient;
2. the inner slip outer barrel and the inner slip body are arranged in the middle of the sealing barrel, the inner slip body is arranged on the inner side of the inner slip outer barrel, and the slips are arranged on the lower side of the rubber barrel, so that sundries can be effectively prevented from falling into the slips;
3. be equipped with down cone, deblocking cover and deblocking pin, lower cone, deblocking cover and deblocking pin all set up the downside at a sealed section of thick bamboo, and when the deblocking, through the setting of lower cone and deblocking cover, with the deblocking ring deblocking mechanism of fluid isolation with the packer locking in the setting position always, do not receive the influence of upper and lower pressure moreover.
Drawings
FIG. 1 is a front view of a half-section structure of the present invention.
In the figure: 1. a sealing cylinder; 2. a valve seat; 3. a valve plate; 4. a first mandrel; 5. a second mandrel; 6. a lower end ring; 7. a piston outer cylinder; 8. connecting a piston; 9. an inner slip outer cylinder; 10. an inner slip body; 11. starting a shearing pin; 12. a pin fixing sleeve; 13. a first connecting sleeve; 14. an upper cone; 15. an integral barrel slip; 16. a lower cone; 17. a second connecting sleeve; 18. connecting an elastic ring; 19. unpacking; 20. unsealing the pin; 21. and a lower joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a take relief valve packer, includes sealing cylinder 1, disk seat 2, valve plate 3, first dabber 4, second dabber 5, lower extreme ring 6, piston urceolus 7, connects piston 8, interior slips urceolus 9, interior slips body 10, starts shearing pin 11, the fixed cover 12 of pin, first adapter sleeve 13, goes up cone 14, whole tubbiness slips 15, lower cone 16, second adapter sleeve 17, connects elastic ring 18, deblocking sleeve 19, deblocking pin 20 and lower clutch 21.
When the packer with the safety valve is used, as shown in fig. 1, the packer is firstly carried to a corresponding place, then the packer is installed, namely, the packer is hydraulically set, a corresponding feeding tool is connected with the packer, the packer is lowered to a position with a corresponding design by combining the feeding tool with a hydraulic cylinder, the pressure of a hydraulic device is controlled and adjusted according to the installation requirement on site, when the number of shearing pins is increased or decreased to adjust the starting pressure, the starting setting pin on the packer is sheared, a connecting piston 8 descends, a locking ring, a rubber cylinder and a slip can be pushed to move downwards, the pressure in an oil pipe is kept at 18-22MPa, the setting, the pressure releasing and the seal checking are completed within 5 minutes, and the installation of the packer is completed;
after the seal is tested to be qualified, the pipe column is lifted, 2-5 tons of weight is increased compared with the original hanging weight, the forward rotation pipe column is released in 11-15 circles, if the pressure exists in the pipe column, the valve plate 3 can be closed after the valve plate 3 is closed by throwing and pressing a ball, the forward rotation pipe column is released between the packer and a feeding tool, the packer is provided with a safety valve, the valve plate 3 can be closed by throwing and pressing the ball without pressing a well under the condition of pressure in the well, an upper protruding rubber cylinder protection ring and a lower protruding prevention rubber cylinder protection ring are added during the combined design of the rubber cylinders, if grinding and milling operation are needed, the upper assembly can be locked on the slips through the design of the rubber cylinder mandrel, the bidirectional barrel-shaped slips can be in 360-degree contact with the casing wall, and the pressure resistance is higher;
and the power distribution of effect on the sleeve pipe is more even, the position of slips is under the packing element, can prevent that debris from falling into in the slips, make deblocking and recovery become safe and reliable, the anti-rotation key of lower part makes the moment of torsion can transmit through the packer, before being retrieved the instrument unblock, with the deblocking ring deblocking mechanism of fluid isolation with the packer locking in the setting position always, deblocking mechanism does not receive the influence of upper and lower pressure, then through going into special recovery instrument when the packer is retrieved, then directly lift the deblocking.
The details which are not described in the present specification belong to the prior art known to those skilled in the art, the standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the drawings, the specific connection mode of each part adopts the conventional means of bolt, rivet, welding, etc. which are mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A packer with a safety valve comprises a sealing barrel (1), wherein the sealing barrel (1) is of a cylindrical structure, a valve seat (2) is arranged above the sealing barrel (1), and a valve plate (3) is arranged below the valve seat (2);
the connecting piston (8) is arranged in the middle of the sealing cylinder (1), the piston outer cylinder (7) is arranged above the connecting piston (8), and the lower end ring (6) is arranged above the piston outer cylinder (7);
it is characterized by also comprising:
the shearing device comprises a starting shearing pin (11), wherein the starting shearing pin (11) is arranged below an inner slip body (10), the upper part of the inner slip body (10) is connected with an inner slip outer cylinder (9), and the inner slip outer cylinder (9) is clamped at the lower end of a connecting piston (8);
the second connecting sleeve (17) is arranged below the sealing cylinder (1), an unsealing sleeve (19) is arranged on the outer side of the lower end of the second connecting sleeve (17), and a connecting elastic ring (18) is arranged at the connecting position of the second connecting sleeve (17) and the unsealing sleeve (19).
2. The packer with safety valve as claimed in claim 1, wherein: the lower extreme of valve plate (3) is provided with first dabber (4), and first dabber (4) through connection is in the inside of sealed section of thick bamboo (1) to second dabber (5) are installed to the outside of first dabber (4) upper end.
3. The packer with safety valve as claimed in claim 2, wherein: the lower end of the second mandrel (5) is provided with a lower end ring (6) for connection, the lower end ring (6) is clamped between the first mandrel (4) and a connecting piston (8), and a piston outer cylinder (7) is installed at the upper end of the connecting piston (8).
4. The packer with safety valve as claimed in claim 3, wherein: the lower side of the connecting piston (8) is provided with an inner slip outer cylinder (9), an inner slip body (10) is installed on the inner side of the inner slip outer cylinder (9), and the inner slip body (10) is connected to the outer side of the upper end of the pin fixing sleeve (12) in a clamping mode.
5. The packer with safety valve as claimed in claim 4, wherein: the middle part of the pin fixing sleeve (12) is inserted with a starting shearing pin (11) with a limiting effect, the lower end of the pin fixing sleeve (12) is provided with a first connecting sleeve (13) in an attaching mode, and the first connecting sleeve (13) is clamped at the upper end of the upper cone (14).
6. The packer with safety valve as claimed in claim 5, wherein: an integral barrel-shaped slip (15) is arranged on the outer side of the lower end of the upper cone (14), a lower cone (16) is clamped on the inner side of the lower end of the integral barrel-shaped slip (15), and the lower end of the lower cone (16) is connected with a second connecting sleeve (17).
7. The packer with safety valve as claimed in claim 1, wherein: the unsealing sleeve (19) is arranged inside the lower joint (21), the lower joint (21) is installed at the lower end of the sealing barrel (1), and an unsealing pin (20) for unsealing is inserted into the outer side of the middle of the lower joint (21).
8. The packer with safety valve as claimed in claim 7, wherein: deblocking pin (20) is in the exterior surface of lower clutch (21) and is the equal angle setting, and lower clutch (21) with separate to laminate each other between cover (19) to separate the inboard of cover (19) and the mutual block of lower extreme of first dabber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139527.7A CN114458225B (en) | 2022-02-16 | 2022-02-16 | Packer with safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139527.7A CN114458225B (en) | 2022-02-16 | 2022-02-16 | Packer with safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114458225A true CN114458225A (en) | 2022-05-10 |
| CN114458225B CN114458225B (en) | 2023-09-15 |
Family
ID=81413956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210139527.7A Active CN114458225B (en) | 2022-02-16 | 2022-02-16 | Packer with safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114458225B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2493909A1 (en) * | 1980-11-13 | 1982-05-14 | Dresser Ind | WELL OPERATING APPARATUS INCORPORATING A SET OF UNDERGROUND SAFETY VALVES HAVING A HYDRAULIC SEAL |
| US4467867A (en) * | 1982-07-06 | 1984-08-28 | Baker Oil Tools, Inc. | Subterranean well safety valve with reference pressure chamber |
| GB9417101D0 (en) * | 1993-10-08 | 1994-10-12 | Halliburton Co | Packer set safety valve for controlling dual fluid flows |
| CN2479188Y (en) * | 2001-04-28 | 2002-02-27 | 张永存 | Packer |
| CN102966328A (en) * | 2012-11-25 | 2013-03-13 | 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 | Novel electro-hydraulic integral bridge plug release tool |
| CN103321604A (en) * | 2013-07-05 | 2013-09-25 | 新疆华油油气工程有限公司 | Packer with safety valve |
| CN203383772U (en) * | 2013-07-05 | 2014-01-08 | 新疆华油油气工程有限公司 | Packer with safety valve |
| US20170081938A1 (en) * | 2014-12-16 | 2017-03-23 | Halliburton Energy Services, Inc. | Packer setting tool with internal pump |
| CN206299366U (en) * | 2016-12-23 | 2017-07-04 | 百勤能源科技（惠州）有限公司 | A kind of anti-premature setting open hole packer |
| CN206376814U (en) * | 2016-12-13 | 2017-08-04 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN210087290U (en) * | 2019-04-01 | 2020-02-18 | 中国石油化工股份有限公司 | Packer for closed pipe column |
| CN211314155U (en) * | 2019-10-22 | 2020-08-21 | 中国海洋石油集团有限公司 | Packer capable of preventing advance deblocking |
| CN211777325U (en) * | 2020-02-25 | 2020-10-27 | 成都德维石油技术服务有限责任公司 | Recyclable packer with built-in safety valve |
-
2022
- 2022-02-16 CN CN202210139527.7A patent/CN114458225B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2493909A1 (en) * | 1980-11-13 | 1982-05-14 | Dresser Ind | WELL OPERATING APPARATUS INCORPORATING A SET OF UNDERGROUND SAFETY VALVES HAVING A HYDRAULIC SEAL |
| US4467867A (en) * | 1982-07-06 | 1984-08-28 | Baker Oil Tools, Inc. | Subterranean well safety valve with reference pressure chamber |
| GB9417101D0 (en) * | 1993-10-08 | 1994-10-12 | Halliburton Co | Packer set safety valve for controlling dual fluid flows |
| CN2479188Y (en) * | 2001-04-28 | 2002-02-27 | 张永存 | Packer |
| CN102966328A (en) * | 2012-11-25 | 2013-03-13 | 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 | Novel electro-hydraulic integral bridge plug release tool |
| CN203383772U (en) * | 2013-07-05 | 2014-01-08 | 新疆华油油气工程有限公司 | Packer with safety valve |
| CN103321604A (en) * | 2013-07-05 | 2013-09-25 | 新疆华油油气工程有限公司 | Packer with safety valve |
| US20170081938A1 (en) * | 2014-12-16 | 2017-03-23 | Halliburton Energy Services, Inc. | Packer setting tool with internal pump |
| CN206376814U (en) * | 2016-12-13 | 2017-08-04 | 中国石油天然气股份有限公司 | Packer (CN) |
| CN206299366U (en) * | 2016-12-23 | 2017-07-04 | 百勤能源科技（惠州）有限公司 | A kind of anti-premature setting open hole packer |
| CN210087290U (en) * | 2019-04-01 | 2020-02-18 | 中国石油化工股份有限公司 | Packer for closed pipe column |
| CN211314155U (en) * | 2019-10-22 | 2020-08-21 | 中国海洋石油集团有限公司 | Packer capable of preventing advance deblocking |
| CN211777325U (en) * | 2020-02-25 | 2020-10-27 | 成都德维石油技术服务有限责任公司 | Recyclable packer with built-in safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114458225B (en) | 2023-09-15 |
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