CN203114236U - Hand-releasing water blocking packer - Google Patents

Hand-releasing water blocking packer Download PDF

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Publication number
CN203114236U
CN203114236U CN 201220713895 CN201220713895U CN203114236U CN 203114236 U CN203114236 U CN 203114236U CN 201220713895 CN201220713895 CN 201220713895 CN 201220713895 U CN201220713895 U CN 201220713895U CN 203114236 U CN203114236 U CN 203114236U
Authority
CN
China
Prior art keywords
slip
ring
sleeve
packer
packing element
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.)
Expired - Fee Related
Application number
CN 201220713895
Other languages
Chinese (zh)
Inventor
刘和平
吴致千
麻二伟
吴亚龙
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.)
HENAN SIKE PETROLEUM ENVIRONMENT-PROTECTION EQUIPMENT Co Ltd
Original Assignee
HENAN SIKE PETROLEUM ENVIRONMENT-PROTECTION EQUIPMENT Co Ltd
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.)
Filing date
Publication date
Application filed by HENAN SIKE PETROLEUM ENVIRONMENT-PROTECTION EQUIPMENT Co Ltd filed Critical HENAN SIKE PETROLEUM ENVIRONMENT-PROTECTION EQUIPMENT Co Ltd
Priority to CN 201220713895 priority Critical patent/CN203114236U/en
Application granted granted Critical
Publication of CN203114236U publication Critical patent/CN203114236U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a hand-releasing water blocking packer. A reset spring is arranged in a bilateral integral slip, wherein a reasonable slip sleeve is arranged outside the slip; a safety pin is arranged between the slip sleeve and an upper cone body; and the slip retracts fully in the slip sleeve provided with a cutting pin, so that the phenomenon of collision of a casing in a well descending process since the outer diameter of the slip exceeds the outer diameter of a guiding sleeve positioned below the slip sleeve is avoided. Meshing angles between end rubber barrels and a middle rubber barrel are 45 degrees, and guiding ring support structures are arranged on the end parts of the two end rubber barrels, so that the high pressure difference between upper and lower parts can be borne. A releasing ring is connected with a center tube through a lock sleeve; during setting, the center tube is used for driving an upper cone and a lower cone to ascend through the releasing ring so as to expand the slip, compress the rubber barrels and seal the oil sleeve space; and the packer is mainly applied to packing of an oil layer, is used for forming a multi-stage hand-releasing water blocking tube column together with a matched tool to realize a multi-stage water finding and blocking process for an oil well, and has the characteristics of reliable sealing and easiness in operating.

Description

A kind of Packer for blocking water of giving up
Technical field
The utility model relates to a kind of oil field downhole tool, particularly a kind of Packer for blocking water of giving up.
Background technology
In the oil field development middle and later periods, waterflood is serious, the comprehensive water cut height, normal employing machine plugging makes from the scene, still comes with some shortcomings, as in 7 cun cased wells, adopt the machinery pressurization to set, be difficult to guarantee effective sealing of packer, and can not realize the shutoff of giving up, cause the inspection pump must change envelope, influenced effective shutoff life-span of packer, owing to influenced and interlayer interference by the wriggling of oil well production string, the one-way slip grappling is unreliable, influenced the sealing effectiveness of packer, as shown in Figure 1, exist the tubing string of giving up to move down in the job execution, last sliding phenomenon causes the operation failure.
The utility model content
The purpose of this utility model provides a kind of Packer for blocking water of giving up simple in structure, replaces conventional water clogging tool, and sealing is reliable, satisfies the production needs of shutoff random layer.
For achieving the above object, the utility model adopts following technical scheme: a kind of Packer for blocking water of giving up, comprise recovery set, adapter sleeve, snap close cover, central tube, compression end packing element, middle packing element, lower cone, upper cone, solution seal ring, releasing device assembly, establish in the releasing device assembly lock ring 7, lock ring by the sawtooth button with separate seal ring and link to each other, the solution seal ring links to each other with central tube by screw thread; Slips is bi-directional slip, and peripheral hardware slip sleeve on it has the hole that the ccontaining bi-directional slip of energy overlaps on slip sleeve, and bi-directional slip places the slips trepanning, and upper cone is fixed together by trip bolt and slip sleeve, and bi-directional slip is provided with back-moving spring.
Recovery set lower end external screw thread links to each other with adapter sleeve, establish in it and discharge ring, in the middle part of discharging ring, be provided with easy dilapidated walls, easily the wall thickness at dilapidated walls place is less than the wall thickness that discharges ring, discharge the ring two ends and be provided with internal thread, the one end (not shown) that can link to each other with dropping feeder, the internal thread that discharges the ring other end is screwed onto snap close and puts, the release ring overlaps not with snap close, and the external diameter of joint equates, place the inwall of being made up of recovery set and adapter sleeve together, discharging has the screw nail fixing between ring and the snap close cover, and the snap close cover other end is screwed onto an end of central tube 13, the central tube other end links to each other with lower cone by screw thread.
Discharging ring material is No. 20 steel, σ b=410 N/ ㎜ 2, when surpassing setting pressure with assurance pipe internal pressure, easily broken wall energy successfully disconnects, and guarantees designing requirement.
Described compression end packing element 11 is 45 degree with the middle packing element angle of engagement, and compression end packing element end is provided with the lead ring braced structures.
The recovery set upper end is provided with the zigzag screw thread.
This novel employing is structure as above, replaces conventional water clogging tool, and sealing is reliable, satisfies the production needs of shutoff random layer.
Description of drawings
Fig. 1 is prior art figure;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is bi-directional slip part enlarged drawing;
Fig. 4 is for discharging the ring enlarged drawing;
Fig. 5 is packing element part enlarged drawing;
Fig. 6 is for discharging the connection enlarged drawing of ring.
The specific embodiment
As shown in the figure, a kind of Packer for blocking water of giving up, comprise recovery set 1, adapter sleeve 4, snap close cover 3, central tube 13, compression end packing element 11, middle packing element 10, lower cone 19, upper cone 15, separate seal ring 8, releasing device assembly 6, establish in the releasing device assembly 6 lock ring 7, lock ring 7 by the sawtooth button with separate seal ring 8 and link to each other, solution seal ring 8 links to each other with central tube 13 by screw thread; Slips is bi-directional slip 18, peripheral hardware slip sleeve 16 on it has the hole 20 that the ccontaining bi-directional slip of energy overlaps on slip sleeve 16, bi-directional slip 18 places slips trepanning 20, upper cone 15 is fixed together by trip bolt 14 and slip sleeve 16, and bi-directional slip 18 is provided with back-moving spring 17.
Recovery set 1 lower end external screw thread links to each other with adapter sleeve 4, establish in it and discharge ring 2, be provided with easy dilapidated walls 22 at release ring 2 middle parts, easily the wall thickness at dilapidated walls 22 places is less than the wall thickness that discharges ring 2, discharge ring 2 two ends and be provided with internal thread, the one end (not shown) that can link to each other with dropping feeder, the internal thread that discharges ring 2 other ends is screwed onto on the snap close cover 3, discharge ring 2 and snap close overlap 3 not the external diameter of joint equate, place the inwall of being formed by recovery set 1 and adapter sleeve 4 together, discharging has the screw nail fixing between ring 2 and the snap close cover 3, snap close overlaps the end that 3 other ends are screwed onto central tube 13, and central tube 13 other ends link to each other with lower cone 19 by screw thread.
The material that discharges ring is No. 20 steel, σ b=410 N/ ㎜ 2, and when surpassing setting pressure with assurance pipe internal pressure, easily broken wall energy successfully disconnects, and guarantees designing requirement.
Described compression end packing element 11 is 45 degree with middle packing element 10 angles of engagement 21, and compression end packing element 11 ends are provided with lead ring 9 braced structuress.
Recovery set 1 upper end is provided with the zigzag screw thread.
The rational slip sleeve 16 of bi-directional slip 18 outer designs, between bi-directional slip 18 and the slip sleeve 16 back-moving spring 17 is housed, between slip sleeve 16 and the upper cone 15 trip bolt 14 is housed, guaranteed that bi-directional slip fully shrinks in the slip sleeve 16 that shear pin is arranged, to avoid its external diameter above the external diameter that is positioned at the guiding cover under the slip sleeve 16, cause the sleeve pipe that in the process of going into the well, collides with.Compression end packing element 11 is 45 degree with middle packing element 10 angles of engagement, and as shown in Figure 5, two end packing element ends are provided with 9 braced structuress of lead ring, can better bear High Pressure Difference up and down.Described release ring 2 links to each other with central tube 13 by snap close cover 3; Make central tube 13 drive upper/lower cones up by discharging ring 2 when setting, bi-directional slip 18 is opened, packing element compression, sealing oil jacket space; Described lock ring 7 and up solution seal ring interlock, the long-time sealing of back packing element that guaranteed to give up is reliable.Lock ring is established and is equipped with the zigzag screw thread in addition, and end face is milled with four " U " type grooves, produces interlock by relative motion and unclamps with separating seal ring, has guaranteed to give up the long-time sealing of back packing element reliably.
Be illustrated in figure 2 as the Packer for blocking water structural representation of giving up, dropping feeder links to each other not shown in the figures by discharging ring 2 during work with packer, down to the setting depth that requires, oil pipe is suppressed 15MPa, release ring 2 drives snap closes cover 3, central tube 13 is up, upper cone 15, lower cone 19 is simultaneously up, compression end packing element 11
And middle packing element 10, solution seal ring 8 is up under the drive of central tube 13, with lock ring 7 interlocks, guarantees that packing element is in compressive state, sealing oil jacket space.Bi-directional slip 18 opens under the effect of upper cone 15 and lower cone 19, realizes bidirectionally anchoring.Continue to suppress 20 MPa, the easy dilapidated walls 22 that discharge on the ring 3 disconnect, and packer is given up.During deblocking, be lowered to special-purpose fishing socket, catch recovery set 1, the upper lifting pipe post, adapter sleeve 4, hydraulic quick coupler 5, releasing device assembly 6, upper cone 15 are up, lock ring 7 with separate seal ring 8 and break away from, end packing element 11, middle packing element 10, bi-directional slip 18 reclaim the packer deblocking.

Claims (5)

1. Packer for blocking water of giving up, comprise recovery set (1), adapter sleeve (4), releasing device assembly (6), snap close cover (3), central tube (13), compression end packing element (11), middle packing element (10), lower cone (19), upper cone (15), separate seal ring (8), it is characterized in that: establish in the releasing device assembly (6) lock ring (7), lock ring (7) by the sawtooth button with separate seal ring (8) and link to each other, solution seal ring (8) links to each other with central tube (13) by screw thread; Slips is bi-directional slip (18), peripheral hardware slip sleeve (16) on it, have the hole (20) of the ccontaining bi-directional slip cover of energy on the slip sleeve (16), bi-directional slip (18) places slips trepanning (20), upper cone (15) is fixed together by trip bolt (14) and slip sleeve (16), and bi-directional slip (18) is provided with back-moving spring (17).
2. the Packer for blocking water of giving up according to claim 1, it is characterized in that: recovery set (1) lower end external screw thread links to each other with adapter sleeve (4), establish in it and discharge ring (2), in the middle part of discharging ring, be provided with easy dilapidated walls (22), the wall thickness that easy dilapidated walls (22) are located is less than the wall thickness that discharges ring (2), discharge ring (2) two ends and be provided with internal thread, one end can link to each other with dropping feeder, the internal thread that discharges ring (2) other end is screwed onto on the snap close cover (3), discharge ring (2) and snap close cover (3) not the external diameter of connecting place equate, place the inwall of being formed by recovery set (1) and adapter sleeve (4) together, snap close cover (3) other end is screwed onto an end of central tube (13), and central tube (13) other end links to each other with lower cone (19) by screw thread.
3. the Packer for blocking water of giving up according to claim 2 is characterized in that: discharging ring (2), to adopt material be No. 20 steel.
4. according to claim 1 and the 2 described Packer for blocking water of giving up, it is characterized in that: described end packing element (11) is 45 degree with middle packing element (10) angle of engagement (21), and end packing element end is provided with lead ring (9) braced structures.
5. the Packer for blocking water of giving up according to claim 2 is characterized in that: be provided with the zigzag screw thread on the described recovery set (1).
CN 201220713895 2012-12-21 2012-12-21 Hand-releasing water blocking packer Expired - Fee Related CN203114236U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220713895 CN203114236U (en) 2012-12-21 2012-12-21 Hand-releasing water blocking packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220713895 CN203114236U (en) 2012-12-21 2012-12-21 Hand-releasing water blocking packer

Publications (1)

Publication Number Publication Date
CN203114236U true CN203114236U (en) 2013-08-07

Family

ID=48894596

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220713895 Expired - Fee Related CN203114236U (en) 2012-12-21 2012-12-21 Hand-releasing water blocking packer

Country Status (1)

Country Link
CN (1) CN203114236U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437734A (en) * 2013-09-22 2013-12-11 中国石油集团川庆钻探工程有限公司 Packer structure
CN104295261A (en) * 2014-10-17 2015-01-21 中国石油天然气股份有限公司 Self-examination packer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437734A (en) * 2013-09-22 2013-12-11 中国石油集团川庆钻探工程有限公司 Packer structure
CN103437734B (en) * 2013-09-22 2016-09-28 中国石油集团川庆钻探工程有限公司 A kind of packer construction
CN104295261A (en) * 2014-10-17 2015-01-21 中国石油天然气股份有限公司 Self-examination packer

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Legal Events

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

Granted publication date: 20130807

Termination date: 20151221

EXPY Termination of patent right or utility model