CN101737019B - Release packer capable of well-flushing - Google Patents

Release packer capable of well-flushing Download PDF

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Publication number
CN101737019B
CN101737019B CN200910231368A CN200910231368A CN101737019B CN 101737019 B CN101737019 B CN 101737019B CN 200910231368 A CN200910231368 A CN 200910231368A CN 200910231368 A CN200910231368 A CN 200910231368A CN 101737019 B CN101737019 B CN 101737019B
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China
Prior art keywords
joint
pipe
sleeve
sliding sleeve
cone
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CN200910231368A
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Chinese (zh)
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CN101737019A (en
Inventor
尚俊涛
周娜
张韬
史红艳
苏浴波
高立军
张声林
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DONGYING BAIHUA PETROLEUM TECHNOLOGY DEVELOPMENT Co Ltd
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DONGYING BAIHUA PETROLEUM TECHNOLOGY DEVELOPMENT Co Ltd
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Publication of CN101737019A publication Critical patent/CN101737019A/en
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Abstract

The invention discloses a release packer capable of well-flushing, which comprises an upper joint, a piston, a hydraulic cylinder, a separating joint, an ejector sleeve, a packing valve ball, a packing valve seat, a packing shear pin, a lock ring, a junk sub, a connected pipe, an inner pipe, an unset shear pin, an upper rubber cylinder joint, a rubber cylinder shaft, a rubber cylinder, a lower rubber cylinder joint, an upper cone, a slip sleeve, a slip, a lower cone, and a stop joint; wherein the lower cone is provided with a communicated hole and internally provided with a sliding sleeve; the sliding sleeve is positioned above the communicated hole and fixed on the lower cone; the upper part of the sliding sleeve is provided with an upper seal ring, and the lower part of the sliding sleeve is provided with a lower seal ring; a pin is positioned between the upper seal ring and the lower seal ring; a cut-off valve ball is located in the upper port of the sliding sleeve; and the diameter of the cut-off valve ball is smaller than the inner diameter of the packing valve seat. Before packing, the reverse well flushing can be carried out on an oil pipe on the packer so as to wash way sundries in the oil pipe and ensure that a packing pressure is transferred to the piston, the packer can be reliably packed and the well flushing can successfully realize oil production by layer, thereby the invention has obvious economic benefit.

Description

Release packer capable of well-flushing
Technical field
The present invention is the laminated distributor under well oil tool of oil field oil recovery usefulness, particularly a kind of release packer capable of well-flushing.
Background technology
Implement layering card water blockoff oil recovery technique, envelope is fallen high aquifer, is the effective way that the control well water rises.Layering card water blockoff will adopt packer, and existing packer kind is more, but has that easy inefficacy, downslide, supporting capacity are low, the construction success rate is low and problem such as deblocking difficulty.It is to be brought it into by oil pipe to suppress the seat envelope behind the oil reservoir position that there is one type packer at the scene, and then oil pipe is separated with packer, realizes that this process scene is called to give up; Such packer is in order to adapt to hydraulic base sealed requirement, and the tubing string of it and its bottom is airtight, and inner liquid can not come out; Outside liquid can not be entered, and therefore, can not carry out clean-out service to tubing string after the following completion; Cause the foreign material blocking channel in the tubing string, make the pressure transmission, can not accomplish the action that needs less than on the piston; Packer can not seal by seat, can not realize the purpose of oil production by layer.
Summary of the invention
The objective of the invention is to design a kind of release packer capable of well-flushing, can carry out well-flushing to tubing string, the seat envelope is reliable, realizes oil production by layer.
The objective of the invention is to realize like this: be made up of top connection, piston, hydraulic cylinder, separating joint, ejector sleeve, seat envelope valve ball, seat envelope valve seat, seat envelope shear pin, lock ring, fishing joint, couplet pipe, interior pipe, deblocking shear pin, gluing socket joint head, packing element axle, packing element, lower rubber cylinder joint, upper cone, slip sleeve, slips, lower cone, retaining joint, the top connection lower external thread is connected with hydraulic cylinder top, and the top connection lower internal thread is connected with separating joint top; Between hydraulic cylinder and the separating joint piston being installed, is ejector sleeve under the piston, and ejector sleeve is connected by seat envelope shear pin with fishing joint; Internal thread is arranged at fishing joint top, and the ejector sleeve bottom is connected with the couplet pipe, between ejector sleeve bottom and the couplet pipe lock ring is arranged; Outside the pipe top, there was unidirectional screw thread interior pipe outside and can interlocks with unidirectional screw thread in the lock ring in unidirectional screw thread in lock ring has, fishing joint were sleeved on; The separating joint bottom is that left hand thread is connected with interior pipe, manages on the interior shoulder seat envelope valve seat outer wall and separating joint inwall fitted seal in an envelope valve seat bottom is sitting in; On the present envelope of the seat envelope valve ball seat valve seat port, fishing joint is connected by the deblocking shear pin with interior pipe, joins the pipe bottom and is connected with gluing socket joint head; Outside managing in gluing socket joint head suspension packing element axle, packing element axle sleeve are contained in, suit packing element on the packing element axle; Packing element is sitting on the lower rubber cylinder joint, and packing element axle bottom is connected with the upper cone upper internal threaded, and the lower rubber cylinder joint is connected with the external screw thread on upper cone top; Slip sleeve is suspended on the upper cone, and lower cone is installed in the slip sleeve, between upper cone and the lower cone slips is installed; Interior pipe bottom is connected with lower cone top, and the retaining joint is connected with the slip sleeve bottom, and lower cone is suspended on the retaining joint; Lower cone is provided with linked hole, and sliding sleeve is installed in the lower cone, and sliding sleeve is on the linked hole; On lower cone, sealing ring is installed on sliding sleeve top to sliding sleeve by dowel fixes, and lower seal is installed in the sliding sleeve bottom; Pin is between sealing ring, the lower seal, and the shut off valve ball seat drops on the sliding sleeve port, closes the internal diameter of the diameter of valve ball less than seat envelope valve seat.
The invention has the beneficial effects as follows: can carry out reverse well-flushing to the oil pipe on the packer before the seat envelope; Can the foreign material in the oil pipe be washed away, guarantee that the seat seal pressure is delivered on the piston, but packer can seal by seat; Make oil well successfully realize oil production by layer, have remarkable economic efficiency.
Description of drawings
Accompanying drawing 1 is the assembling drawing of the embodiment of the invention.
Accompanying drawing 2 is the profiles after cutting open from A-A in the accompanying drawing 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described.
Embodiments of the invention by top connection 1, piston 2, hydraulic cylinder 3, separating joint 4, ejector sleeve 5, seat envelope valve ball 6, seat envelope valve seat 7, seat envelope shear pin 8, lock ring 9, fishing joint 10, join pipe 11, interior pipe 12, deblocking shear pin 13, gluing socket joint head 14, packing element axle 15, packing element 16, lower rubber cylinder joint 17, upper cone 18, slip sleeve 19, slips 20, close valve ball 21, go up sealing ring 22, retaining joint 24, pin 25, lower seal 26, lower cone 28 form, top connection 1 lower external thread is connected with hydraulic cylinder 3 tops, top connection 1 lower internal thread is connected with separating joint 4 tops; Piston 2 is installed between hydraulic cylinder 3 and the separating joint 4, is ejector sleeve 5 under the piston 2, and ejector sleeve 5 is connected by seat envelope shear pin 8 with fishing joint 10; Internal thread is arranged at fishing joint 10 tops, and ejector sleeve 5 bottoms are connected with couplet pipe 11, between ejector sleeve 5 bottoms and the couplet pipe 11 lock ring 9 is arranged; Outside pipe 12 tops, there was unidirectional screw thread interior pipe 12 outsides and can interlocks with unidirectional screw thread in the lock ring 9 in unidirectional screw thread in lock ring 9 has, fishing joint 10 were sleeved on; Separating joint 4 bottoms and interior pipe 12 be for left hand thread is connected, in seat envelope valve seat 7 bottoms are sitting in the pipe 12 on the shoulders, and seat envelope valve seat 7 outer walls and separating joint 4 inwall fitted seal; Fishing joint 10 is connected by deblocking shear pin 13 with interior pipe 12, joins pipe 11 bottoms and is connected with gluing socket joint head 14, gluing socket joint head 14 suspension packing element axles 15; Outside the pipe 12, suit packing element 16 on the packing element axle 15, packing element 16 were sitting on the lower rubber cylinder joint 17 in packing element axle 15 was sleeved on; Packing element axle 15 bottoms are connected with upper cone 18 upper internal threaded, and lower rubber cylinder joint 17 is connected with the external screw thread on upper cone 18 tops, and slip sleeve 19 is suspended on the upper cone 18; Lower cone 28 is installed in the slip sleeve 19; Slips 20 is installed between upper cone 18 and the lower cone 28, and interior pipe 12 bottoms are connected with lower cone 28 tops, and retaining joint 24 is connected with slip sleeve 19 bottoms; Lower cone 28 is suspended on the retaining joint 24; Lower cone 28 is provided with well washing hole 27, and sliding sleeve 23 is installed in the lower cone 28, and sliding sleeve 23 is on the well washing hole 27; Sliding sleeve 23 is fixed on the lower cone 28 by pin 25; Sealing ring 22 is installed on sliding sleeve 23 tops, and lower seal 26 is installed in sliding sleeve 23 bottoms, and pin 25 is between sealing ring 22, the lower seal 26.
During well-flushing, in sleeve pipe, squeeze into flushing fluid, flushing fluid gets into upwards to flow out through well washing hole 27 and washes away foreign material.After well-flushing is accomplished, in oil pipe, drop into diameter less than seat envelope valve seat 7 internal diameters close valve ball 21, close valve ball 21 and pass a seat envelope valve seat 7 and fall to sliding sleeve 23 port; Inwardly suppress, hydraulic coupling promotes sliding sleeve 23, and pin 25 is cut off; Sliding sleeve 23 descending covering well washing holes 27, last sealing ring 22 are on well washing hole 27 and the pin 25, and lower seal 26 is on the well washing hole 27; Flushing fluid in the pipe 12, do not guarantee next step and realizes oil production by layer in can not get into from well washing hole 27.
During the seat envelope, seat is sealed valve ball 6 drop in the oil pipe, seat envelope valve ball 6 falls on seat envelope valve seat 7 port; Inwardly suppress, hydraulic pressure imports into to piston 2 from the linked hole on the separating joint 4, makes ejector sleeve 5 a descending envelope shear pin 6 of cutting off; It is descending that ejector sleeve is exercised upper cone 18 for 5 times, the reduced distances between upper cone 18, the lower cone 28, and promotion slips 20 outwards moves and blocks the jail on casing wall; Ejector sleeve 5 continues descending, compression packing element 16 Sealed casing pipes, meanwhile; On the pipe 12, make slips 20 block the jail all the time on sleeve pipe after pressure disappears in lock ring 9 descending being buckled in, packing element 16 is Sealed casing pipe all the time.
When giving up, the positive rotation oil pipe, because separating joint 4 bottoms and interior pipe 12 are for left hand thread is connected, therefore, thread off with interior pipe 12 connecting threads and separate in separating joint 4 bottoms, and separating joint 4 is tripped out, and other part is stayed in the well and is produced.
During salvaging, be lowered to fisher and connect with fishing joint 10 upper internal threaded on the back and carry, deblocking shear pin 13 is broken, and fishing joint 10 is thrown off with interior pipe 12, and the distance between upper cone 18, the lower cone 28 increases, and slips 20 is regained, and packing element 16 is regained, and realizes deblocking.

Claims (1)

1. a release packer capable of well-flushing is made up of top connection (1), piston (2), hydraulic cylinder (3), separating joint (4), ejector sleeve (5), an envelope valve ball (6), seat envelope valve seat (7), seat envelope shear pin (8), lock ring (9), fishing joint (10), couplet pipe (11), interior pipe (12), deblocking shear pin (13), gluing socket joint head (14), packing element axle (15), packing element (16), lower rubber cylinder joint (17), upper cone (18), slip sleeve (19), slips (20), retaining joint (24), lower cone (28), and top connection (1) lower external thread is connected with hydraulic cylinder (3) top; Top connection (1) lower internal thread is connected with separating joint (4) top, between hydraulic cylinder (3) and the separating joint (4) piston (2) is installed, and is ejector sleeve (5) under the piston (2); Ejector sleeve (5) is connected by seat envelope shear pin (8) with fishing joint (10), and internal thread is arranged at fishing joint (10) top, and ejector sleeve (5) bottom is connected with couplet pipe (11); Between ejector sleeve (5) bottom and the couplet pipe (11) lock ring (9) is arranged, unidirectional screw thread in lock ring (9) has, fishing joint (10) is sleeved on outside interior pipe (12) top; In pipe (12) outside unidirectional screw thread and can interlocking with unidirectional screw thread in the lock ring (9) is arranged, separating joint (4) bottom and interior pipe (12) be for left hand thread is connected, seals to be sitting on the interior shoulder of interior pipe (12) bottom the valve seat (7); Seat envelope valve seat (7) outer wall and separating joint (4) inwall fitted seal, fishing joint (10) is connected by deblocking shear pin (13) with interior pipe (12), joins pipe (11) bottom and is connected with gluing socket joint head (14); Gluing socket joint head (14) suspension packing element axle (15), packing element axle (15) is sleeved on outside the interior pipe (12), and packing element axle (15) is gone up suit packing element (16); Packing element (16) is sitting on the lower rubber cylinder joint (17), and packing element axle (15) bottom is connected with upper cone (18) upper internal threaded, and lower rubber cylinder joint (17) is connected with the external screw thread on upper cone (18) top; Slip sleeve (19) is suspended on the upper cone (18), and lower cone (28) is installed in the slip sleeve (19), between upper cone (18) and the lower cone (28) slips (20) is installed; Interior pipe (12) bottom is connected with lower cone (28) top, and retaining joint (24) is connected with slip sleeve (19) bottom, and lower cone (28) is suspended on the retaining joint (24); It is characterized in that: lower cone (28) is provided with well washing hole (27), and sliding sleeve (23) is installed in the lower cone (28), and sliding sleeve (23) is on the well washing hole (27); Sliding sleeve (23) is fixed on the lower cone (28) by pin (25), and sealing ring (22) is installed on sliding sleeve (23) top, and lower seal (26) is installed in sliding sleeve (23) bottom; Pin (25) is between sealing ring (22), the lower seal (26), during well-flushing, in sleeve pipe, squeezes into flushing fluid; Flushing fluid gets into upwards to flow out through well washing hole (27) and washes away foreign material; In oil pipe, drop into diameter and close valve ball (21), close valve ball (21) and pass a seat envelope valve seat (7) and fall to sliding sleeve (23) port, inwardly suppress less than what seat sealed valve seat (7) internal diameter; Hydraulic coupling promotes sliding sleeve (23); Pin (25) is cut off, and the descending covering well washing hole of sliding sleeve (23) (27), last sealing ring (22) are on well washing hole (27) and the pin (25); Lower seal (26) is on the well washing hole (27), and flushing fluid can not managed in (12) in well washing hole (27) gets into.
CN200910231368A 2009-12-02 2009-12-02 Release packer capable of well-flushing Active CN101737019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910231368A CN101737019B (en) 2009-12-02 2009-12-02 Release packer capable of well-flushing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910231368A CN101737019B (en) 2009-12-02 2009-12-02 Release packer capable of well-flushing

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CN101737019A CN101737019A (en) 2010-06-16
CN101737019B true CN101737019B (en) 2012-09-05

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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321624B (en) * 2013-07-09 2016-04-20 中国石油集团渤海钻探工程有限公司 A desirable ball seat sliding sleeve of screw-type
CN104420846B (en) * 2013-08-27 2017-01-18 深圳市百勤石油技术有限公司 Suspension packer
CN103437738B (en) * 2013-08-27 2016-11-16 山东拓普石油装备有限公司 A kind of slip-type underground packing and the comprehensive apparatus for eliminating sludge that throttles
CN103790547B (en) * 2014-02-11 2016-06-22 中国石油集团西部钻探工程有限公司 hanging packer device
CN107869320B (en) * 2016-09-23 2021-02-09 中国石油化工股份有限公司 Backflow-preventing well flushing valve
CN106761541B (en) * 2017-03-28 2023-01-24 中国石油大学(北京) Hydraulic anchoring sealing device
CN108487879A (en) * 2017-12-20 2018-09-04 高云东 A kind of oil layer protection flushing packer
CN108999589B (en) * 2018-07-26 2021-11-23 中国石油大学(华东) Downhole blowout preventer for workover operation
CN109296337A (en) * 2018-10-19 2019-02-01 东营百华石油技术开发有限公司 Full-bore exempts to bore plug hook-up for cementing
CN109209286A (en) * 2018-10-20 2019-01-15 东营百华石油技术开发有限公司 A kind of packer of oil well filling sand control
CN109296346A (en) * 2018-10-21 2019-02-01 东营百华石油技术开发有限公司 A kind of sand control pack device that can be anti-sticking
CN110424922B (en) * 2019-08-05 2021-09-28 中国石油天然气股份有限公司 Non-metal anchoring packer backwashing method
CN114109289B (en) * 2020-08-31 2024-01-30 中国石油化工股份有限公司 Oil-water well flushing sundry collecting device
CN116556878B (en) * 2023-05-24 2023-12-26 东营市福利德石油科技开发有限责任公司 Packer capable of being set and unset repeatedly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233068A2 (en) * 1986-02-07 1987-08-19 Halliburton Company Setting device for zone gravel packing system
US5343949A (en) * 1992-09-10 1994-09-06 Halliburton Company Isolation washpipe for earth well completions and method for use in gravel packing a well
CN2368973Y (en) * 1999-01-22 2000-03-15 孔利生 Packer
CN201214986Y (en) * 2007-12-07 2009-04-01 王杰林 Anti-pollution well washing oil extraction device
RU2370632C1 (en) * 2008-03-17 2009-10-20 Геннадий Иосифович Геймаш Method of casing well with liner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233068A2 (en) * 1986-02-07 1987-08-19 Halliburton Company Setting device for zone gravel packing system
US5343949A (en) * 1992-09-10 1994-09-06 Halliburton Company Isolation washpipe for earth well completions and method for use in gravel packing a well
CN2368973Y (en) * 1999-01-22 2000-03-15 孔利生 Packer
CN201214986Y (en) * 2007-12-07 2009-04-01 王杰林 Anti-pollution well washing oil extraction device
RU2370632C1 (en) * 2008-03-17 2009-10-20 Геннадий Иосифович Геймаш Method of casing well with liner

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Owner name: DONGYING BAIHUA PETROLEUM TECHNOLOGY DEVELOPMENT C

Free format text: FORMER OWNER: YU HAITAO

Effective date: 20120702

C41 Transfer of patent application or patent right or utility model
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Shang Juntao

Inventor after: Zhou Na

Inventor after: Zhang Tao

Inventor after: Shi Hongyan

Inventor after: Su Yubo

Inventor after: Gao Lijun

Inventor after: Zhang Shenglin

Inventor before: Zhou Na

Inventor before: Zhang Tao

Inventor before: Wang Jun

Inventor before: Liu Jiajiu

Inventor before: Bai Tao

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHOU NA ZHANG TAO WANG JUN LIU JIAJIU XUE TAO TO: SHANG JUNTAO ZHOU NA ZHANG TAO SHI HONGYAN SU YUBO GAO LIJUN ZHANG SHENGLIN

TA01 Transfer of patent application right

Effective date of registration: 20120702

Address after: 2-115 mailbox, Shengli oil production plant, Dongying, Shandong 257051

Applicant after: Dongying Baihua Petroleum Technology Development Co., Ltd.

Address before: 999 mailbox, North 257051, Shengli Oilfield, Shandong, Dongying

Applicant before: Yu Haitao

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Denomination of invention: Washable well release packer

Effective date of registration: 20220525

Granted publication date: 20120905

Pledgee: Dongying laishang Village Bank Co.,Ltd. New Area sub branch

Pledgor: DONGYING BAIHUA PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd.

Registration number: Y2022980006357

PE01 Entry into force of the registration of the contract for pledge of patent right