CN203905893U - Hydraulic packer capable of being taken out - Google Patents

Hydraulic packer capable of being taken out Download PDF

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Publication number
CN203905893U
CN203905893U CN201420328531.9U CN201420328531U CN203905893U CN 203905893 U CN203905893 U CN 203905893U CN 201420328531 U CN201420328531 U CN 201420328531U CN 203905893 U CN203905893 U CN 203905893U
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CN
China
Prior art keywords
ring
packing
central tube
seat
slips
Prior art date
Application number
CN201420328531.9U
Other languages
Chinese (zh)
Inventor
王琼
黄会方
龚文冲
程市君
张健
马小平
王鲜
Original Assignee
荆州市赛瑞能源技术有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 荆州市赛瑞能源技术有限公司 filed Critical 荆州市赛瑞能源技术有限公司
Priority to CN201420328531.9U priority Critical patent/CN203905893U/en
Application granted granted Critical
Publication of CN203905893U publication Critical patent/CN203905893U/en

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Abstract

The utility model relates to a hydraulic packer capable of being taken out and belongs to the field of downhole operation tools of oil and gas wells. The packer comprises a center tube, an upper joint, a lower joint, an upper slip, a lower slip and a cylinder sleeve, wherein one end of the center tube is provided with the upper joint, the other end of the center tube is provided with the lower joint, the portion, between the upper joint and the lower joint, of the center tube is provided with the cylinder sleeve, one end of the cylinder sleeve is provided with a rubber sleeve baffle ring, and the other end of the cylinder sleeve is provided with a lower cone; the lower slip is embedded in the portion, between the lower cone and the lower joint, of the center tube through a lower slip bowl. The packer is simple in setting mode, no torque needs to be provided, and the packer can be used in an inclined shaft, a horizontal well and an ultra-deep well where torque can not be transmitted easily. Blocking can be removed just by lifting a pipe column upwards, it is avoided that other conventional packers are operated in a rotating mode in use, the disengagement phenomenon can be effectively prevented, and the packer can bear annular high pressure from the positions above and below a rubber sleeve. A plurality of packers can be used in one well to achieve multi-level multi-stage construction.

Description

A kind of hydraulic pressure retrievable packer
Technical field
The utility model relates to a kind of hydraulic pressure retrievable packer, belongs to Oil/gas Well underground operation tool field.
Background technology
Packer is widely used in separated-zone water infection oil field, acidifying, pressure break, sand control, look for and altering and envelope is altered etc. in operation, mainly realizes the packing effect to annular space between tubing and casing.And conventional mechanical packer is due to reasons in structure, during use, with the operation of rotation tubing string, be not especially suitable for ultradeep well or the inclined shaft of the bad transmission of moment of torsion, in horizontal well.And the general bearing capacity of conventional hydraulic packer is lower, its pressure is generally below 35MPa.
Summary of the invention
The purpose of this utility model is: provide a kind of and make bi-directional slip be anchored on internal surface of sleeve pipe by hydraulic setting, and make multistage packing element combination sealing can bear the high pressure of 70MPa, and carry the hydraulic pressure retrievable packer that gets final product deblocking directly.
The technical solution of the utility model is:
A kind of hydraulic pressure retrievable packer, comprise central tube, top connection, lower contact, upper slips, lower slips and cylinder sleeve, it is characterized in that: the threaded one end of central tube is provided with top connection, the other end of central tube is installed lower contact by clamp-screw, on central tube between top connection and lower contact, be provided with cylinder sleeve, on the central tube of cylinder sleeve one end, by adapter sleeve screw thread, packing element baffle ring A is installed, on the central tube of the cylinder sleeve other end, by lock ring seat, lower cone is installed, adapter sleeve and lock ring seat are threaded with cylinder sleeve respectively, on central tube between lower cone and lower contact, by lower slips seat, be embedded with lower slips, on the central tube of top connection one side, by upper slips seat, be embedded with upper slips, on central tube between upper slips and packing element baffle ring A, by packing element lining, upper cone and packing element baffle ring B are installed, packing element in the middle of being provided with on packing element lining between packing element baffle ring B and packing element baffle ring A, between middle packing element and packing element baffle ring B and packing element baffle ring A, left packing element and right packing element are housed respectively, packing element lining termination between adapter sleeve and central tube is provided with interior axle bumper ring, interior axle bumper ring is threaded with adapter sleeve.On central tube in cylinder sleeve, be provided with lower piston, on the central tube of lower piston one end, by spacing ring D and locating snap ring, upper piston be installed, upper piston is connected with adapter sleeve contact; The other end of lower piston is connected with lower cone contact; On lower piston between lower cone one side, lock ring seat and central tube, lock ring is housed, the upper and lower surface of lock ring is respectively arranged with lock ring tooth, the soffit of the upper surface of lower piston and lock ring seat is respectively arranged with slide teeth, lock ring was slidably connected with lower piston and lock ring seat by lock ring tooth and coordinating respectively of slide teeth, and lock ring is also connected and fixed by holding screw and lock ring seat.On described central tube, be provided with pressurizing port.
Described lock ring is C type ring.
Described lower slips seat is connected with central tube by shear pin A; Between the lower slips seat of shear pin A mono-side and central tube, be provided with spacing ring A.
Between described upper slips seat and central tube, be provided with spacing ring B, between upper slips seat and top connection, by shear pin B, be connected.
Between described upper cone and central tube, be provided with spacing ring C, between upper cone and packing element lining, be provided with back-up ring, between the packing element lining of back-up ring one side and central tube, be provided with seal.
Left spacer ring and right spacer ring are housed respectively between described middle packing element and left packing element and right packing element.
On described spacing ring D, be provided with spout hole, spout hole is communicated with the pressurizing port on central tube.
Between upper piston and central tube and cylinder sleeve, be respectively arranged with sealing ring.Between lock ring seat and lower cone, by shear pin C, be connected.
The beneficial effects of the utility model are:
1, this hydraulic pressure retrievable packer setting mode is simple, does not need to provide moment of torsion, can, at the inclined shaft of bad transmitting torque, in horizontal well and ultradeep well, use.
2, this retrievable removing seal for packer mode is simple, and upper lifting pipe post gets final product deblocking, avoids other conventional packers rotary manipulation in use, effectively prevents the phenomenon releasing.
3, this hydraulic pressure retrievable packer can bear the annular space high pressure from packing element above and below simultaneously.
4, can with a plurality of packers, realize the construction of multistage multilayer position by a bite well.
Accompanying drawing explanation:
Accompanying drawing is structural representation of the present utility model.
In figure: 1, central tube, 2, top connection, 3, lower contact, 4, upper slips, 5, lower slips, 6, cylinder sleeve, 7, adapter sleeve, 8, lock ring seat, 9, packing element baffle ring A, 10, lower cone, 11, clamp-screw, 12, lower slips seat, 13, shear pin A, 14, spacing ring A, 15, upper slips seat, 16, shear pin B, 17, spacing ring B, 18, packing element lining, 19, upper cone, 20, packing element baffle ring B, 21, spacing ring C, 22, back-up ring, 23, seal, 24, middle packing element, 25, left packing element, 26, right packing element, 27, left spacer ring, 28, right spacer ring, 29, lower piston, 30, spacing ring D, 31, locating snap ring, 32, upper piston, 33, lock ring, 34, holding screw, 35, shear pin C, 36, interior axle bumper ring.
The specific embodiment
This hydraulic pressure retrievable packer comprises central tube 1, top connection 2, lower contact 3, upper slips 4, lower slips 5 and cylinder sleeve 6.The threaded one end of central tube 1 is provided with top connection 2, and the other end of central tube 1 is installed lower contact 3 by clamp-screw 11.
On central tube 1 between top connection 2 and lower contact 3, be provided with cylinder sleeve 6, on the central tube 1 of cylinder sleeve 6 one end, by adapter sleeve 7 screw threads, packing element baffle ring A9 be installed, on the central tube 1 of cylinder sleeve 6 other ends, by lock ring seat 8, lower cone 10 is installed; Adapter sleeve 7 and lock ring seat 8 are threaded with cylinder sleeve 6 respectively.On central tube 1 between lower cone 10 and lower contact 3, by lower slips seat 12, be embedded with lower slips 5, on the central tube 1 of top connection 2 one sides, by upper slips seat 15, be embedded with upper slips 4.Lower slips seat 12 is connected with central tube 1 by shear pin A13; Between the lower slips seat 12 of shear pin A13 mono-side and central tube 1, be provided with spacing ring A14.Between upper slips seat 15 and central tube 1, be provided with spacing ring B17, between upper slips seat 15 and top connection 2, by shear pin B16, be connected.
On central tube 1 between upper slips 4 and packing element baffle ring A9, by packing element lining 18, upper cone 19 and packing element baffle ring B20 are installed.Between upper cone 19 and central tube 1, be provided with spacing ring C21, between upper cone 19 and packing element lining 18, be provided with back-up ring 22, between the packing element lining 18 of back-up ring 22 1 sides and central tube 1, be provided with seal 23.Packing element 24 in the middle of being provided with on packing element lining 18 between packing element baffle ring B20 and packing element baffle ring A9, between middle packing element 24 and packing element baffle ring B20 and packing element baffle ring A9, left packing element 25 and right packing element 26 are housed respectively, left spacer ring 27 and right spacer ring 28 are housed respectively between middle packing element 24 and left packing element 25 and right packing element 26.Packing element lining 18 terminations between adapter sleeve 7 and central tube 1 are provided with interior axle bumper ring 36, and interior axle bumper ring 36 is threaded with adapter sleeve 7.
On central tube 1 in cylinder sleeve 6, be provided with lower piston 29, on the central tube 1 of lower piston 29 one end, by spacing ring D30 and locating snap ring 31, upper piston 32 be installed, on spacing ring D30, be provided with spout hole, spout hole is communicated with the pressurizing port on central tube 1.Between upper piston 32 and central tube 1 and cylinder sleeve 6, be respectively arranged with sealing ring.Upper piston 32 is connected with adapter sleeve 7 contacts; The other end of lower piston 29 is connected with lower cone 10 contacts; On lower piston 29 between lower cone 10 1 sides, lock ring seat 8 and central tube 1, lock ring 33 is housed, lock ring 33 is C type ring.
The upper and lower surface of lock ring 33 is respectively arranged with lock ring tooth, the soffit of the upper surface of lower piston 29 and lock ring seat 8 is respectively arranged with slide teeth, lock ring 33 was slidably connected with lower piston 29 and lock ring seat 8 by lock ring tooth and coordinating respectively of slide teeth, and lock ring 33 is also connected and fixed by holding screw 34 and lock ring seat 8.On central tube 1, be provided with pressurizing port, between lock ring seat 8 and lower cone 10, by shear pin C35, be connected.
In this hydraulic pressure retrievable packer course of work, when hydraulic coupling reaches after the setting value that sets shear pin C35, shear pin C35 is cut off, now set startup, upper piston 32 promotes adapter sleeve 7, right packing element 26, middle packing element 24, left packing element 25 and upper cone 19 and moves up, thereby promote upper slips, is anchored on internal surface of sleeve pipe.Lower piston 29 promotes lock ring 33 simultaneously, lower cone 10 moves down and pushes lower slips 5, thereby makes lower slips 5 be anchored on internal surface of sleeve pipe.After above-mentioned action completes, continuation increases hydraulic coupling, makes right packing element 26, middle packing element 24 and the compressed distortion of left packing element 25, makes it tightly be attached to internal surface of sleeve pipe, thereby reaches the effect of sealing.Under the effect of lock ring 33, set and be held, and it is effective lastingly to make to set effect.
The seal assembly that the right packing element 26 of this hydraulic pressure retrievable packer, middle packing element 24 and left packing element 25 form, can effectively guarantee that this packer is not losing envelope under duty for a long time.During deblocking, above carry central tube 1, top connection 2 can be cut off with the shear pin B16 on upper slips seat 15, and cuts off the shear pin A13 on lower slips seat 12 and central tube 1 simultaneously.Now observe well head weight indicator, at this moment suspending weight can decline, and carries oil pipe 1.2M on slowly, on central tube 1, moves, and lower slips seat 12 moves with central tube 1, thereby lower slips 5 is fallen after rise, downforce balance retraction gradually on each packing element, thus deblocking completes.In continuation, carry central tube 1 and can trip out well head.

Claims (9)

1. a hydraulic pressure retrievable packer, comprise central tube (1), top connection (2), lower contact (3), upper slips (4), lower slips (5) and cylinder sleeve (6), it is characterized in that: the threaded one end of central tube (1) is provided with top connection (2), the other end of central tube (1) is installed lower contact (3) by clamp-screw (11), on central tube (1) between top connection (2) and lower contact (3), be provided with cylinder sleeve (6), the central tube (1) of cylinder sleeve (6) one end is above provided with packing element baffle ring A(9 by adapter sleeve (7) screw thread), the central tube (1) of cylinder sleeve (6) other end is above provided with lower cone (10) by lock ring seat (8), adapter sleeve (7) and lock ring seat (8) are threaded with cylinder sleeve (6) respectively, central tube (1) between lower cone (10) and lower contact (3) is above embedded with lower slips (5) by lower slips seat (12), the central tube (1) of top connection (2) one sides is above embedded with upper slips (4) by upper slips seat (15), upper slips (4) and packing element baffle ring A(9) between central tube (1) upper by packing element lining (18), upper cone (19) and packing element baffle ring B(20 are installed), packing element baffle ring B(20) and packing element baffle ring A(9) between packing element lining (18) on be provided with in the middle of packing element (24), middle packing element (24) and packing element baffle ring B(20) and packing element baffle ring A(9) between left packing element (25) and right packing element (26) are housed respectively, packing element lining (18) termination between adapter sleeve (7) and central tube (1) is provided with interior axle bumper ring (36), interior axle bumper ring (36) is threaded with adapter sleeve (7), on central tube (1) in cylinder sleeve (6), be provided with lower piston (29), the central tube (1) of lower piston (29) one end is upper by spacing ring D(30) and locating snap ring (31) upper piston (32) is installed, upper piston (32) contacts and is connected with adapter sleeve (7), the other end of lower piston (29) is connected with lower cone (10) contact, on lower piston (29) between lower cone (10) one sides, lock ring seat (8) and central tube (1), lock ring (33) is housed, the upper and lower surface of lock ring (33) is respectively arranged with lock ring tooth, the soffit of the upper surface of lower piston (29) and lock ring seat (8) is respectively arranged with slide teeth, lock ring (33) was slidably connected with lower piston (29) and lock ring seat (8) by lock ring tooth and coordinating respectively of slide teeth, and lock ring (33) is also connected and fixed by holding screw (34) and lock ring seat (8), described central tube is provided with pressurizing port on (1).
2. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: described lock ring (33) is C type ring.
3. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: described lower slips seat (12) is by shear pin A(13) be connected with central tube (1); Shear pin A(13) between the lower slips seat (12) of a side and central tube (1), be provided with spacing ring A(14).
4. a kind of hydraulic pressure retrievable packer according to claim 1, it is characterized in that: between described upper slips seat (15) and central tube (1), be provided with spacing ring B(17), between upper slips seat (15) and top connection (2) by shear pin B(16) be connected.
5. a kind of hydraulic pressure retrievable packer according to claim 1, it is characterized in that: between described upper cone (19) and central tube (1), be provided with spacing ring C(21), between upper cone (19) and packing element lining (18), be provided with back-up ring (22), between the packing element lining (18) of back-up ring (22) one sides and central tube (1), be provided with seal (23).
6. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: left spacer ring (27) and right spacer ring (28) are housed respectively between described middle packing element (24) and left packing element (25) and right packing element (26).
7. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: described spacing ring D(30), be provided with spout hole, spout hole is communicated with the pressurizing port on central tube (1).
8. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: between described upper piston (32) and central tube (1) and cylinder sleeve (6), be respectively arranged with sealing ring.
9. a kind of hydraulic pressure retrievable packer according to claim 1, is characterized in that: between described lock ring seat (8) and lower cone (10) by shear pin C(35) be connected.
CN201420328531.9U 2014-06-19 2014-06-19 Hydraulic packer capable of being taken out CN203905893U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420328531.9U CN203905893U (en) 2014-06-19 2014-06-19 Hydraulic packer capable of being taken out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695894A (en) * 2015-02-28 2015-06-10 荆州市赛瑞能源技术有限公司 Hydraulic detachable packer with sliding sleeve
CN104863540A (en) * 2015-05-28 2015-08-26 荆州市赛瑞能源技术有限公司 Anchor packer with hydraulic setting function and rotation unsetting function
CN105064947A (en) * 2015-02-12 2015-11-18 四机赛瓦石油钻采设备有限公司 Recyclable hydraulic production packer
CN105464615A (en) * 2015-12-31 2016-04-06 东营市福利德石油科技开发有限责任公司 Parallel double-pipe packer for deepwater oil well
CN107893642A (en) * 2017-11-03 2018-04-10 蔡薇 A kind of application method of underground work metal packer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064947A (en) * 2015-02-12 2015-11-18 四机赛瓦石油钻采设备有限公司 Recyclable hydraulic production packer
CN104695894A (en) * 2015-02-28 2015-06-10 荆州市赛瑞能源技术有限公司 Hydraulic detachable packer with sliding sleeve
CN104863540A (en) * 2015-05-28 2015-08-26 荆州市赛瑞能源技术有限公司 Anchor packer with hydraulic setting function and rotation unsetting function
CN105464615A (en) * 2015-12-31 2016-04-06 东营市福利德石油科技开发有限责任公司 Parallel double-pipe packer for deepwater oil well
CN105464615B (en) * 2015-12-31 2019-01-11 东营市福利德石油科技开发有限责任公司 Deepwater wells parallel double tube packer
CN107893642A (en) * 2017-11-03 2018-04-10 蔡薇 A kind of application method of underground work metal packer
CN107893642B (en) * 2017-11-03 2019-10-29 刘玉友 A kind of application method of underground work metal packer

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20190619

CF01 Termination of patent right due to non-payment of annual fee