CN114458225B - Packer with safety valve - Google Patents
Packer with safety valve Download PDFInfo
- Publication number
- CN114458225B CN114458225B CN202210139527.7A CN202210139527A CN114458225B CN 114458225 B CN114458225 B CN 114458225B CN 202210139527 A CN202210139527 A CN 202210139527A CN 114458225 B CN114458225 B CN 114458225B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- deblocking
- sealing cylinder
- packer
- piston
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 cylinder, wherein the sealing cylinder is of a cylindrical structure, a valve seat is arranged above the sealing cylinder, a connecting piston is arranged in the middle of the sealing cylinder, a shearing pin is started, the shearing pin is arranged below an inner slip body, a second connecting sleeve is arranged below the sealing cylinder, and a deblocking sleeve is arranged outside the lower end of the second connecting sleeve. This take relief valve packer, packer itself take the relief valve, under the condition that has pressure in the well, need not the kill well, throw the ball and press and can close the valve plate, increase the packing element protection ring that prevents protruding from top to bottom during packing element integrated design moreover, through two-way tubbiness slips, can 360 degrees contacts with the casing wall moreover, pressure-resistant ability is higher, and the power distribution on the casing is more even, the position of slips is under the packing element moreover, can prevent debris from falling into in the slips, make deblocking and recovery become safe and reliable.
Description
Technical Field
The invention relates to the technical field of packer correlation, in particular to a packer with a safety valve.
Background
The packer is a special tool for sealing oil, gas and water layers in a downhole casing or an open hole, is installed under the action of external force, so that the layered test, layered oil extraction, layered water injection, layered reconstruction and water layer plugging of the oil and the water well are realized, the packer is very widely used, and the packer with the safety valve is a recoverable packer with the safety valve and is used for hanging the tool or the sand-proof screen pipe or sealing pressure at a certain point in the casing;
however, the commonly used packers with relief valves still have the following disadvantages:
1. the existing packer with the safety valve is inconvenient to install in the actual use process, poor in tightness and easy to leak in the use process, and the actual sealing effect is affected;
2. the existing packer with the safety valve is inconvenient to control the valve plate in the use process, has the protection effect on the rubber cylinder, and has a short service life;
3. the existing packer with the safety valve is low in pressure resistance and impurities easily enter the slips, so that the packer is inconvenient to recycle after the use is finished, and the practicability is low.
Therefore, we propose a packer with a relief valve in order to solve the problems presented in the above.
Disclosure of Invention
The invention aims to provide a packer with a safety valve, which solves the problems that in the prior art, in the actual use process, the installation is inconvenient, the tightness is poor, leakage is easy to occur during use, the actual sealing effect is affected, the valve plate is inconvenient to control in the use process, the protection effect on a rubber cylinder is not long in service life, the pressure resistance is not high, sundries easily enter slips, the packer is inconvenient to recycle after the use is finished, and the practicability is not high.
In order to achieve the above purpose, the present invention provides the following technical solutions: the packer with the safety valve comprises a sealing cylinder, wherein the sealing cylinder is of a cylindrical structure, a valve seat is arranged above the sealing cylinder, 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 comprises:
the starting shear pin is arranged below the inner slip body, the upper part of the inner clamping tile body is connected with the inner clamping tile outer cylinder, and the inner clamping tile outer cylinder 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, a first mandrel is arranged at the lower end of the valve plate, the first mandrel is connected inside the sealing cylinder in a penetrating mode, and a second mandrel is arranged on the outer side of the upper end of the first mandrel.
Preferably, a lower end ring for connection is arranged at the lower end of the second mandrel, the lower end ring is connected between the first mandrel and the connecting piston in a clamping mode, and a piston outer cylinder is arranged at the upper end of the connecting piston.
Preferably, the lower side of the connecting piston is provided with an inner clamping tile outer cylinder, an inner clamping tile body is arranged on the inner side of the inner clamping tile outer cylinder, and the inner clamping tile body is connected to the outer side of the upper end of the pin fixing sleeve in a clamping mode.
Preferably, the middle part of the pin fixing sleeve is inserted with a starting shearing pin with a limiting function, the lower end of the pin fixing sleeve is provided with a first connecting sleeve in a fitting mode, and the first connecting sleeve is clamped at the upper end of the upper cone.
Preferably, an integral barrel-shaped slip is arranged at the outer side of the lower end of the upper cone, a lower cone is clamped at 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 unsealing sleeve is arranged in the lower connector, the lower connector is arranged at the lower end of the sealing cylinder, and the unsealing pin for unsealing is inserted into the outer side of the middle part of the lower connector.
Preferably, the deblocking pin is arranged at an equal angle on the outer surface of the lower joint, the lower joint and the deblocking sleeve are mutually attached, and the inner side of the deblocking sleeve is mutually clamped with the lower end of the first mandrel.
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, under the condition that the pressure exists in a well, the valve plate can be closed without well killing and ball throwing pressing, the use is very convenient, an upper and lower anti-protruding rubber cylinder protection ring is added during the rubber cylinder combination design, the packer can be contacted with the casing wall by 360 degrees through the bidirectional barrel-shaped slips, the pressure resistance is higher, the force distribution on the casing is more uniform, and the positions of the slips are under the rubber cylinders, so that sundries can be prevented from falling into the slips, and the deblocking and recovery become 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 under the condition of pressure in a well, the valve plate can be controlled to be opened and closed without well killing, the operation is convenient, and the use is very convenient;
2. the inner clamping tile outer cylinder and the inner clamping tile body are arranged in the middle of the sealing cylinder, the inner clamping tile body is arranged on the inner side of the inner clamping tile outer cylinder, the clamping tile is arranged on the lower side of the rubber cylinder, sundries can be effectively prevented from falling into the clamping tile, the structure is simple, and the use is very convenient;
3. the sealing device is provided with a lower cone, a sealing sleeve and a sealing pin, wherein the lower cone, the sealing sleeve and the sealing pin are arranged on the lower side of the sealing cylinder, and when the sealing device is used for sealing, a sealing ring sealing mechanism isolated from fluid always locks the packer in a sealing position through the arrangement of the lower cone and the sealing sleeve, and is not influenced by upper and lower pressure.
Drawings
FIG. 1 is a schematic diagram of the front 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. a connecting piston; 9. an inner clamping tile outer cylinder; 10. an inner tile body; 11. starting a shearing pin; 12. a pin fixing sleeve; 13. a first connection 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. deblocking the envelope; 20. deblocking the pin; 21. and a lower joint.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: a packer with a safety valve comprises a sealing cylinder 1, a valve seat 2, a valve plate 3, a first mandrel 4, a second mandrel 5, a lower end ring 6, a piston outer cylinder 7, a connecting piston 8, an inner clamping tile outer cylinder 9, an inner clamping tile body 10, a starting shear pin 11, a pin fixing sleeve 12, a first connecting sleeve 13, an upper cone 14, an integral barrel-shaped slip 15, a lower cone 16, a second connecting sleeve 17, a connecting elastic ring 18, a deblocking sleeve 19, a deblocking pin 20 and a lower joint 21.
When the packer with the safety valve is used, as shown in fig. 1, the packer is carried to a corresponding place, then the packer is installed, namely, the packer is hydraulically set, a corresponding running tool is connected with the packer, the packer is lowered to a corresponding designed position through the running tool combined with a hydraulic cylinder, the pressure of a hydraulic device is controlled and regulated according to the installation requirement of a site, when the number of shearing pins is increased or reduced to adjust the height of the starting pressure, the starting setting pins on the packer are sheared, and a connecting piston 8 is connected to move downwards, so that a locking ring, a rubber cylinder and a slip can be pushed to move downwards, the pressure in an oil pipe is kept to 18-22MPa, the setting, the pressure is released, the setting is checked, and the installation of the packer is completed;
after the seal inspection is qualified, lifting the pipe column, increasing 2-5 tons compared with the original suspended weight, forward rotating for 11-15 circles, releasing the pipe column after throwing balls to press and close the valve plate 3 if pressure exists in the pipe column, releasing the pipe column forward rotating between the packer and the feeding tool, enabling the packer to be provided with a safety valve, closing the valve plate 3 without well killing and throwing balls to press under the condition that pressure exists in a well, adding an upper and lower anti-protruding rubber protection ring when the rubber is combined, and enabling an upper component to be locked on a slip, enabling a bidirectional barrel-shaped slip to be in contact with the wall of a sleeve by 360 degrees if milling operation is needed, wherein the pressure resistance is higher;
the force distribution acting on the casing is more uniform, the position of the slips is below the rubber sleeve, sundries can be prevented from falling into the slips, the deblocking and recovery become safe and reliable, the anti-rotation key at the lower part enables torque to be transmitted through the packer, the deblocking mechanism of the deblocking ring isolated from fluid always locks the packer at the setting position before the recovery tool is unlocked, the deblocking mechanism is not influenced by up-and-down pressure, then the packer is recovered by the special recovery tool, and then the deblocking is directly lifted.
The details not described in detail in the specification belong to the prior art known to those skilled in the art, standard parts used in the invention can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (1)
1. The packer with the safety valve comprises a sealing cylinder (1), wherein the sealing cylinder (1) is of a cylindrical structure, a valve seat (2) is arranged above the sealing cylinder (1), and a valve plate (3) is arranged below the valve seat (2);
the connecting piston (8), the connecting piston (8) is arranged in the middle of the sealing cylinder (1), a piston outer cylinder (7) is arranged above the connecting piston (8), and a lower end ring (6) is arranged above the piston outer cylinder (7);
characterized by further comprising:
the starting shear pin (11) is arranged below the inner slip body (10), the upper part of the inner slip body (10) is connected with the inner slip outer cylinder (9), and the inner slip outer cylinder (9) is clamped at the lower end of the connecting piston (8);
the second connecting sleeve (17), the second connecting sleeve (17) is arranged below the sealing cylinder (1), the outer side of the lower end of the second connecting sleeve (17) is provided with a deblocking sleeve (19), and the joint of the second connecting sleeve (17) and the deblocking sleeve (19) is provided with a connecting elastic ring (18);
the lower end of the valve plate (3) is provided with a first mandrel (4), the first mandrel (4) is connected inside the sealing cylinder (1) in a penetrating way, and the outer side of the upper end of the first mandrel (4) is provided with a second mandrel (5);
the lower end of the second mandrel (5) is provided with a lower end ring (6) for connection, the lower end ring (6) is connected between the first mandrel (4) and the connecting piston (8) in a clamping way, and the upper end of the connecting piston (8) is provided with a piston outer cylinder (7); an inner clamping tile outer cylinder (9) is arranged at the lower side of the connecting piston (8), an inner clamping tile body (10) is arranged at the inner side of the inner clamping tile outer cylinder (9), and the inner clamping tile body (10) is connected to the outer side of the upper end of the pin fixing sleeve (12) in a clamping mode; the middle part of the pin fixing sleeve (12) is inserted with a starting shear pin (11) with a limiting function, the lower end of the pin fixing sleeve (12) is provided with a first connecting sleeve (13) in a fitting mode, and the first connecting sleeve (13) is clamped at the upper end of the upper cone (14); the outer side of the lower end of the upper cone (14) is provided with an integral barrel-shaped slip (15), the inner side of the lower end of the integral barrel-shaped slip (15) is clamped with a lower cone (16), and the lower end of the lower cone (16) is connected with a second connecting sleeve (17);
the deblocking sleeve (19) is arranged in the lower joint (21), the lower joint (21) is arranged at the lower end of the sealing cylinder (1), and a deblocking pin (20) for deblocking is inserted at the outer side of the middle part of the lower joint (21); the deblocking pin (20) is arranged on the outer surface of the lower joint (21) at an equal angle, the lower joint (21) and the deblocking sleeve (19) are mutually attached, and the inner side of the deblocking sleeve (19) is mutually clamped with the lower end of the first mandrel (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 CN114458225A (en) | 2022-05-10 |
| CN114458225B true 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 (12)
| 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 |
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2963077C (en) * | 2014-12-16 | 2019-03-26 | Halliburton Energy Services, Inc. | Packer setting tool with internal pump |
-
2022
- 2022-02-16 CN CN202210139527.7A patent/CN114458225B/en active Active
Patent Citations (12)
| 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 |
| CN206376814U (en) * | 2016-12-13 | 2017-08-04 | 中国石油天然气股份有限公司 | Packer |
| 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 |
|---|---|
| CN114458225A (en) | 2022-05-10 |
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