CN204827359U - But integration modus ponens oil recovery bridging plug - Google Patents

But integration modus ponens oil recovery bridging plug Download PDF

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Publication number
CN204827359U
CN204827359U CN201520531852.3U CN201520531852U CN204827359U CN 204827359 U CN204827359 U CN 204827359U CN 201520531852 U CN201520531852 U CN 201520531852U CN 204827359 U CN204827359 U CN 204827359U
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CN
China
Prior art keywords
joint
cone
slips
mandrel
sealing
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Active
Application number
CN201520531852.3U
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Chinese (zh)
Inventor
白友国
李凡磊
官峻
李兴
刘建国
郁甜甜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Jiangsu Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Sinopec Jiangsu Oilfield Co
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Application filed by China Petroleum and Chemical Corp, Sinopec Jiangsu Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN201520531852.3U priority Critical patent/CN204827359U/en
Application granted granted Critical
Publication of CN204827359U publication Critical patent/CN204827359U/en
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Abstract

But integration modus ponens oil recovery bridging plug relates to the structure of oil recovery bridging plug, including top connection, piston dabber, intubate, hydraulic pressure cylinder, radially sets up the through -hole at the piston spindle, connecting the pushing cylinder at the lower extreme of hydraulic pressure cylinder, setting up at the lower extreme of pushing cylinder and sit the sealing -in head, set up the deblocking between sealing -in head and the intubate and connect sitting, the lower extreme that the deblocking connects passes through the deblocking shear pin and connects the dabber, set up the catch between deblocking joint and seat sealing -in head, set up the locking piece between deblocking joint and dabber, the cone is connected to lower extreme sitting the sealing -in head, sets up the lock tube between cone and dabber, periphery an organic whole in the cone sets up the cone boss, sets up the spacing ring on the cone boss, and a slips section of thick bamboo is connected to the spacing ring, sets up the slips in the slips section of thick bamboo, connect the seal cover at the lower extreme of dabber, the seal cover periphery an organic whole below a slips section of thick bamboo sets up the seal cover boss, sets up two at least packing elements outside the seal cover. The utility model discloses tubular column completion bridging plug card of ability seals, two operations of oil recovery, can take out the recovery after the oil recovery.

Description

Integration retrievable oil recovery bridging plug
Technical field
The utility model is used for that part well cover in oil field damages that positional distance well head is nearer, run-down segment length when the intubate blocking oil production technology of carrying out in, particularly relate to the structure of oil recovery bridging plug.
Background technology
Existing oil field intubate oil production technology technology has following shortcoming, needs first to enter down tubing string that setting tool is connected with bridging plug and carries out bridging plug and set, then trip out tubing string, enter down pump band intubation column again, will under twice tubing string just can complete, the well workover cycle is longer, and operating expenses is higher ;and propose, in the process of setting tool and lower intubate, pit shaft sediment may be had and fall in intubate bridging plug central tube, cause oil recovery intubate not insert and open bridging plug oil recovery passage, cause well workover to be constructed unsuccessfully.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of stable performance, can complete bridging plug card envelope, oil recovery two operations by one-trip string, can take out the integrated retrievable oil recovery bridging plug of recovery after oil recovery.
The purpose of this utility model is achieved in that integrated retrievable oil recovery bridging plug, comprise from top to bottom connect successively top connection, piston mandrel, there is the intubate of central passage, outside top connection, hydraulic cylinder is set, hydraulic cavities is formed, the through hole that radial setting is connected with hydraulic cavities on piston mandrel between top connection, hydraulic cylinder, piston mandrel; Connect pushing cylinder in the lower end of described hydraulic cylinder, pushing cylinder is arranged on the periphery of piston mandrel; Arrange in the lower end of pushing cylinder and set joint, set the periphery that joint is arranged on intubate, solution sealing joint is set setting between joint and intubate, the upper end of separating sealing joint is connected with the upper end setting joint by setting shear pin, separate the lower end of sealing joint by deblocking shear pin connecting mandrel, mandrel is arranged on the periphery of intubate; At solution sealing joint and set between joint and arrange the female lock ring of tool, lock dog is set between solution sealing joint and mandrel; Connect cone in the described lower end setting joint, cone is arranged on the periphery of mandrel, arranges and have externally threaded lock tube between cone and mandrel; Be wholely set cone boss in the periphery setting the cone below joint, cone boss arranges spacing ring, spacing ring connects slips cylinder, and arrange slips in slips cylinder, slips is equipped with the periphery in cone; Connect the sealing shroud with central passage in the lower end of described mandrel, the upper end of sealing shroud is arranged between slips cylinder and intubate, and the lower end of sealing shroud is arranged on the below of intubate; Sealing shroud periphery below described slips cylinder is wholely set sealing shroud boss, and the sealing shroud between slips cylinder and sealing shroud boss arranges at least two packing elements outward, arranges spacer ring between adjacent two packing elements.
As improvement of the present utility model, sand control rubber is set at spacing ring and outside setting between joint cone.
As further improvement of the utility model, O RunddichtringO is set between top connection and hydraulic cylinder.
The utility model sets assembly (being made up of top connection, hydraulic cylinder, piston mandrel, O RunddichtringO, pushing cylinder), bridging plug intubate assembly, mandrel, solution sealing joint, bridging plug seal assembly (packing element, spacer ring), bridging plug anchor (cone, slips, slips cylinder form), bridging plug locking assembly (lock ring, lock dog form) etc. primarily of bridging plug and forms.During use, first by design attitude under integrated retrievable oil recovery bridging plug lower going-into-well, suppress and make bridging plug set assembly work, set the slips anchoring that assembly promotes bridging plug anchor, then make the packing element of bridging plug seal assembly enter duty, the lock ring of assembly of bridging plug locking is simultaneously meshed with the saw-tooth thread of lock tube, the self-locking of retrievable oil recovery bridging plug, when setting force exceedes the ultimate tensile of cannelure on mandrel, mandrel is pulled off at cannelure place, and retrievable oil recovery bridging plug sets in downhole designs position.Deblocking enters the solution sealing joint that unsealing tool catches integrated retrievable oil recovery bridging plug at present, on carry bridging plug unsealing tool, bridging plug locking assembly is unlocked, the slips of anchor is return, the packing element of seal assembly retraction, integration retrievable oil recovery bridging plug deblocking, retrievable oil recovery bridging plug can take out with bridging plug unsealing tool and reclaim.The most high workload pressure reduction of this bridging plug can reach 70MPa.
The utility model stable performance, can complete bridging plug card envelope, oil recovery two operations by one-trip string, can take out the integrated retrievable oil recovery capping tools of recovery after oil recovery.This integrated retrievable oil recovery bridging plug, in the construction of intubate oil producing operation, can be saved operating cost 40,000 yuan by individual well, be constructed into power high.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is A portion enlarged drawing in Fig. 1.
Fig. 3 is B portion enlarged drawing in Fig. 1.
Detailed description of the invention
As Figure 1-3, integration retrievable oil recovery bridging plug, comprise from top to bottom connect successively top connection (1), piston mandrel (3), there is the intubate (6) of central passage, hydraulic cylinder (2) is set outside top connection (1), hydraulic cylinder (2) is stretched out in the upper end of top connection (1), arranges O RunddichtringO (4) between top connection (1) and hydraulic cylinder (2).Hydraulic cavities (23) is formed, at the through hole (24) that the upper radial setting of piston mandrel (3) is connected with hydraulic cavities (23) between top connection (1), hydraulic cylinder (2), piston mandrel (3).Connect pushing cylinder (5) in the lower end of hydraulic cylinder (2), pushing cylinder (5) is arranged on the periphery of piston mandrel (3).Arrange in the lower end of pushing cylinder (5) and set joint (7), set the periphery that joint (7) is arranged on intubate (6), separate sealing joint (9) setting to arrange between joint (7) and intubate (6), the upper end of separating sealing joint (9) is connected with the upper end setting joint (7) by setting shear pin (8), separate the lower end of sealing joint (9) by deblocking shear pin (11) connecting mandrel (18), mandrel (18) is arranged on the periphery of intubate (6).In solution sealing joint (9), the female lock ring of tool (10) is set with setting between joint (7), lock dog (12) is set separating between sealing joint (9) and mandrel (18).Connect cone (16) in the lower end setting joint (7), cone (16) is arranged on the periphery of mandrel (18), arranges and have externally threaded lock tube (14) between cone (16) and mandrel (18).Be wholely set cone boss (25) in the periphery of cone (16) setting joint (7) below, sand control rubber (13) is set at spacing ring (15) and outside setting between joint (7) cone (16).Cone boss (25) is arranged spacing ring (15), spacing ring (15) connects slips cylinder (19), and arrange slips (17) in slips cylinder (19), slips (17) is equipped with the periphery in cone (16).Connect the sealing shroud (20) with central passage in the lower end of mandrel (18), the upper end of sealing shroud (20) is arranged between slips cylinder (19) and intubate (6), and the lower end of sealing shroud (20) is arranged on the below of intubate (6).Sealing shroud boss (26) is wholely set in sealing shroud (20) periphery of slips cylinder (19) below, sealing shroud (20) between slips cylinder (19) and sealing shroud boss (26) arranges at least two packing elements (21) outward, arranges spacer ring (22) between adjacent two packing elements (21).

Claims (3)

1. integrated retrievable oil recovery bridging plug, it is characterized in that: comprise from top to bottom connect successively top connection (1), piston mandrel (3), there is the intubate (6) of central passage, hydraulic cylinder (2) is set outside top connection (1), hydraulic cavities (23) is formed, at the through hole (24) that the upper radial setting of piston mandrel (3) is connected with hydraulic cavities (23) between top connection (1), hydraulic cylinder (2), piston mandrel (3); Connect pushing cylinder (5) in the lower end of described hydraulic cylinder (2), pushing cylinder (5) is arranged on the periphery of piston mandrel (3); Arrange in the lower end of pushing cylinder (5) and set joint (7), set the periphery that joint (7) is arranged on intubate (6), separate sealing joint (9) setting to arrange between joint (7) and intubate (6), the upper end of separating sealing joint (9) is connected with the upper end setting joint (7) by setting shear pin (8), separate the lower end of sealing joint (9) by deblocking shear pin (11) connecting mandrel (18), mandrel (18) is arranged on the periphery of intubate (6); In solution sealing joint (9), the female lock ring of tool (10) is set with setting between joint (7), lock dog (12) is set separating between sealing joint (9) and mandrel (18); Connect cone (16) in the described lower end setting joint (7), cone (16) is arranged on the periphery of mandrel (18), arranges and have externally threaded lock tube (14) between cone (16) and mandrel (18); Cone boss (25) is wholely set in the periphery of the cone (16) setting joint (7) below, cone boss (25) is arranged spacing ring (15), spacing ring (15) connects slips cylinder (19), arrange slips (17) in slips cylinder (19), slips (17) is equipped with the periphery in cone (16); Connect the sealing shroud (20) with central passage in the lower end of described mandrel (18), the upper end of sealing shroud (20) is arranged between slips cylinder (19) and intubate (6), and the lower end of sealing shroud (20) is arranged on the below of intubate (6); Sealing shroud boss (26) is wholely set in sealing shroud (20) periphery of described slips cylinder (19) below, sealing shroud (20) between slips cylinder (19) and sealing shroud boss (26) arranges at least two packing elements (21) outward, arranges spacer ring (22) between adjacent two packing elements (21).
2. integrated retrievable oil recovery bridging plug according to claim 1, is characterized in that: arrange sand control rubber (13) at spacing ring (15) and outside setting between joint (7) cone (16).
3. integrated retrievable oil recovery bridging plug according to claim 1, is characterized in that: between top connection (1) and hydraulic cylinder (2), arrange O RunddichtringO (4).
CN201520531852.3U 2015-07-22 2015-07-22 But integration modus ponens oil recovery bridging plug Active CN204827359U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520531852.3U CN204827359U (en) 2015-07-22 2015-07-22 But integration modus ponens oil recovery bridging plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520531852.3U CN204827359U (en) 2015-07-22 2015-07-22 But integration modus ponens oil recovery bridging plug

Publications (1)

Publication Number Publication Date
CN204827359U true CN204827359U (en) 2015-12-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707341A (en) * 2018-12-24 2019-05-03 齐齐哈尔亚盛机械制造有限公司 A kind of small latus rectum oil pipe of fluid pressure type sets bridge plug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707341A (en) * 2018-12-24 2019-05-03 齐齐哈尔亚盛机械制造有限公司 A kind of small latus rectum oil pipe of fluid pressure type sets bridge plug
CN109707341B (en) * 2018-12-24 2019-10-11 齐齐哈尔亚盛机械制造有限公司 A kind of small latus rectum oil pipe of fluid pressure type sets bridge plug

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