CN110439489A - Fill the water anti-jack slips anchor - Google Patents

Fill the water anti-jack slips anchor Download PDF

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Publication number
CN110439489A
CN110439489A CN201910879052.3A CN201910879052A CN110439489A CN 110439489 A CN110439489 A CN 110439489A CN 201910879052 A CN201910879052 A CN 201910879052A CN 110439489 A CN110439489 A CN 110439489A
Authority
CN
China
Prior art keywords
lower contact
central tube
piston
cylinder sleeve
slip
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.)
Pending
Application number
CN201910879052.3A
Other languages
Chinese (zh)
Inventor
李红卫
李海伟
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.)
Dongying Yuan Jie Petroleum Machinery Co Ltd
Original Assignee
Dongying Yuan Jie Petroleum Machinery 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 Dongying Yuan Jie Petroleum Machinery Co Ltd filed Critical Dongying Yuan Jie Petroleum Machinery Co Ltd
Priority to CN201910879052.3A priority Critical patent/CN110439489A/en
Publication of CN110439489A publication Critical patent/CN110439489A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/01Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/06Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers

Abstract

The invention discloses a kind of water filling anti-jack slips anchors, including top connection, slip insert, slip spider, lower contact and piston.Top connection lower end is threadedly coupled with central tube, and slip insert is set on the outside of central tube, and slip insert and top connection cone match, central tube are equipped with inlet opening;Slip spider is located in the pipe outer wall of center, and lower thread is connected with cylinder sleeve, and cylinder sleeve lower end sets baffle ring, the lower end of slip insert and slip spider upper end cone match;Baffle ring is set in lower contact surface and is threadedly coupled with lower contact, and lower contact upper end is equipped with through-hole, and the pin block for lower contact and central tube to be detachably connected is equipped in through-hole;Piston sleeve is set on the outside of the upper end of lower contact and is connect by pin with lower contact, and pin block and through-hole are located in piston sleeve and are limited by piston sleeve.The configuration of the present invention is simple is reasonable, can effectively prevent slip insert and resets failure, safety and firmness.

Description

Fill the water anti-jack slips anchor
Technical field
The present invention relates to oil exploitation underground supporting tools, and in particular to a kind of water filling anti-jack slips anchor.
Background technique
The anchor tool of downhole hydraulic is the tool for implementing anchoring using hydraulic pressuring difference inside and outside tubing string, at present de-plugging, It is widely used in the oil gas fields produced on-site operation such as reservoir reconstruction, underground work.Hydraulic anchor is that formation testing packer realizes positioning function One of the important component of energy, the course of work are as follows: if overpressure is greater than annular pressure, hydraulic anchor piston starting, by waterpower Anchor clamp realizes the reliable anchoring of tubing string extremely on internal surface of sleeve pipe, prevents tubing string axially upwardly play.In structure composition, waterpower Anchor is generally made of anchor body, pressing plate, fixing screws, reset spring, anchor fluke, anchor fluke piston etc., and function is can only to bear tubing string Power is pushed up in certain axial direction, tubing string axial compressive force cannot be born.The slips anchor used now is spring slips dental structure, resets bullet Spring is mounted on slip insert lower part, is architectural limitation, and the spring compartment of hydraulic anchor is smaller, and the spring sizes of installation are limited to smaller bullet Spring, it is more sensitive to pressure difference, while anchor fluke retracting force provided by spring is smaller, causes the anchor fluke of hydraulic anchor to withdraw difficult;And And when in use, the spring compartment of hydraulic anchor with oil jacket annulus is directly exposed is connected to, sand grains that borehole fluid carries, dirty grain block, The impurity such as greasy filth are easily accessible and are deposited in spring compartment, cause spring failure, and the slips after preventing anchoring is met from withdrawing The case where card.In this way in long-time use process, slip insert is be easy to cause to reset failure.
Summary of the invention
The purpose of the present invention is to defects of the existing technology, and providing one kind can effectively prevent slip insert reset mistake Effect, the water filling anti-jack slips anchor of safety and firmness.
The technical scheme is that water filling anti-jack slips anchor, comprising:
Top connection, the top connection lower end are threadedly coupled with central tube, and the lower end outer surface of the top connection is matched equipped with back taper Conjunction face;
Slip insert, the slip insert are set on the outside of central tube, and the upper end inner surface of the slip insert is cooperated by back taper Face is matched with top connection lower end, and the central tube is equipped with inlet opening;
Slip spider, the slip spider are located in the pipe outer wall of center, and lower thread is connected with cylinder sleeve, and the cylinder sleeve lower end is equipped with For limiting the baffle ring of cylinder sleeve, the lower end of the slip insert and slip spider upper end cone match;
Lower contact, the upper end of the lower contact are located in the annular cavity that central tube and cylinder sleeve are formed, and the baffle ring is set in down Joint surface is simultaneously threadedly coupled with lower contact, and the lower contact upper end is equipped with the through-hole being connected to inner cavity, is equipped in the through-hole Pin block for lower contact and central tube to be detachably connected;The slip spider, central tube, cylinder sleeve and lower contact form annular Plunger shaft, the inlet opening are connected to plunger shaft;
Piston, the piston include that the piston only contacted in plunger shaft with piston cavity wall is arranged in and is arranged in piston only The hollow piston sleeve in lower end, the piston sleeve are set on the outside of the upper end of lower contact and are connect by pin with lower contact, The pin block and through-hole are located in piston sleeve and are limited by piston sleeve.
Preferably, the inlet opening and pin block are multiple, and the radial dimension of the pin block is less than the radial ruler of plunger shaft Very little, the central tube is equipped with the groove for grafting pin block.
Preferably, the position of the groove and the position of inlet opening are corresponding.
Preferably, the position of the groove and inlet opening interlaced arrangement;The inner surface of the groove is inclined-plane, the pin block End shape in central tube is matched with groove.
Preferably, the inner surface and the outer surface of the piston only be respectively equipped with central tube and liner packing cooperation it is close Seal.
Preferably, the outer surface of the central tube is equipped with the limiting groove with length, the limiting groove in the axial direction Below inlet opening, the positive stop key moved up and down along limiting groove is fixed in the lower contact.
Preferably, it is equipped with sealing device between the central tube and lower contact and between lower contact and cylinder sleeve, it is described Sealing device is located at the lower section of limiting groove.
Preferably, the upper end of the lower contact is equipped with shoulder, and the piston sleeve lower end is sitting on shoulder, and the through-hole is set It sets at shoulder.
Preferably, the lower end of the cylinder sleeve is equipped with the step extended to center of circle direction, and the diameter of the step is less than cylinder sleeve Internal diameter, the lower contact is sitting on step by the protrusion that outer surface is arranged.
The present invention compared with prior art, has the advantage that reasonable and compact in structure, easy to use, and the present invention is logical It crosses inlet opening and carries out liquid pressing, can use the structures such as slip insert, slip spider, piston, pin block and cylinder sleeve, make piston stroking upward, It realizes the unlock of central tube and lower contact to make pin block fall off, transfers central tube after unlock, be able to achieve slips anchoring, while energy Realization sets set packer;Stop liquid pressurization, above mentions central tube, resets slip insert, can release anchoring, this structure It can effectively prevent the problem of slip insert resets failure because of spring, securely and reliably.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
It is managed centered on Fig. 2 and the partial schematic diagram after lower contact unlock;
In figure: 1, top connection, 2, slip insert, 3, slip spider, 4, lower contact, 5, central tube, 6, cylinder sleeve, 7, piston, 71, piston sheet Body, 72, piston sleeve, 8, inlet opening, 9, baffle ring, 10, plunger shaft, 11, through-hole, 12, pin block, 13, pin, 14, shoulder, 15, Sealing ring, 16, limiting groove, 17, positive stop key, 18, step, 19, groove.
Specific embodiment
Here is that the present invention is further described in conjunction with the accompanying drawings and embodiments.
Embodiment one
Referring to Fig.1 shown in, fill the water anti-jack slips anchor, comprising: top connection 1, slip insert 2, slip spider 3, lower contact 4, central tube 5, Cylinder sleeve 6 and piston 7.
Wherein, the lower end of top connection 1 is threadedly coupled with central tube 5, and the lower end outer surface of top connection 1 cooperates equipped with back taper Face;Slip insert 2 is set in the outside of central tube 5, and the upper end inner surface of slip insert 2 passes through back taper mating surface and top connection 1 Lower end matches, the expansible under the compressing of top connection 1 of slip insert 2, to play the role of anchoring.On central tube 5 be equipped with into Fluid apertures 8, inlet opening 8 are connected to plunger shaft, and when pressurization, liquid enters plunger shaft 10 by inlet opening 8.
The outer wall of central tube 5 is equipped with protrusion, and slip spider 3 is located on the outer wall of central tube 5 by protrusion, slip insert 2 Lower end and 3 upper end cone match of slip spider, 2 top and bottom of slip insert are respectively set cone match, can guarantee to slip insert 2 After applying pressure, upper and lower side can extend to the outside simultaneously, to preferably play the role of anchoring;Cylinder sleeve 6 is threaded in card The lower section of watt seat 3,4 outer surface thread of lower contact are connected with baffle ring 9, and baffle ring 9 is fixed on 6 lower end of cylinder sleeve, for carrying out to cylinder sleeve 6 Limit, such lower contact 4 are linked together it with cylinder sleeve 6 and slip spider 3 by baffle ring 9.At this point, top connection 1, slip insert 2, slip spider 3, cylinder sleeve 6 and the outer surface of piston 7 keep same outer diameter convenient for decentralization tubing string concordant.
Slip spider 3, central tube 5, cylinder sleeve 6 and lower contact 4 form the plunger shaft 10 of annular, the upper end of lower contact 4 and piston 7 Be all located in plunger shaft 10, and piston 7 include be arranged in the piston only 71 contacted in plunger shaft 10 with 10 inner wall of plunger shaft and The hollow piston sleeve 72 in 71 lower end of piston only is set, and piston sleeve 72 is set on the outside of the upper end of lower contact 4 and passes through Pin 13 is connect with lower contact 4, and lower contact 4 and piston 7 can be fixed together in this way, only when the excessive Shi Caihui of pressure is cut Pin 13 realizes moving up and down for piston 7.The through-hole 11 being connected to inner cavity is equipped in 4 upper end of lower contact, activity is set in through-hole 11 There is pin block 12, pin block 12 and through-hole 11 are located in piston sleeve 72 and are limited by piston sleeve 72, the upper end of lower contact 4 Equipped with shoulder 14,72 lower end of piston sleeve is sitting on shoulder 14, and through-hole 11 is arranged at shoulder 14.One end of pin block 12 is stretched out logical Hole 11 simultaneously be located at central tube 5 groove 19 in, since the position of inlet opening 8 is corresponding with 11 position of through-hole, in this way when liquid through into After fluid apertures 8 enters, entered in plunger shaft 10 by gap under pressure, pin 13 is cut under certain pressure effect, and Piston 7 is pushed to move up, piston sleeve 72 is detached from the continuation uplink of shoulder 14 at this time, until being detached from the position of through-hole 11, pin block It is mobile to 6 direction of cylinder sleeve under fluid pressure effect after 12 lose the blocking of piston sleeve 72, until be detached from groove 19, this When central tube 5 and lower contact 4 unlock, i.e., central tube 5 can be moved up and down relative to lower contact 4, as shown in Figure 2.
Above-mentioned inlet opening 8 and pin block 12 be it is multiple, the radial dimension of pin block 12 is less than the radial dimension of plunger shaft 10, Guarantee that pin block 12 can thoroughly fall off from groove 19 in this way.
Liquid pressing is injected into central tube 5, liquid enters in plunger shaft 10 through inlet opening 8, as pressure increase can be cut Pin 13 between disconnected piston sleeve 72 and lower contact 4, continuing pressurization can push piston 7 to move up in plunger shaft 10, this When piston sleeve 72 be detached from 14 uplink of shoulder, when piston sleeve 72 be detached from through-hole 11 when, pin block 12 loses the resistance of piston sleeve 72 After gear, under fluid pressure effect, pin block 12 is moved along 11 inner wall of through-hole to 6 direction of cylinder sleeve, until be detached from groove 19, this When central tube 5 and lower contact 4 be disconnected realization unlock;Central tube 5, back taper of the slip insert 2 in top connection 1 are transferred after unlock Under mating surface effect, squeezes slip insert 2 and expanded outwardly along the conical surface, while 2 lower end of slip insert is matched also by the conical surface with slip spider 3 Conjunction is expanded, until slip insert 2 and casing are anchored, while being able to achieve and being set to set packer;Stop liquid pressurization, above mentions Central tube 5 resets slip insert 2, can release anchoring, and this structure can effectively prevent the reset failure of slip insert, securely and reliably.
Embodiment two
Other are basically the same as the first embodiment, the difference is that: the position of groove 19 and 8 interlaced arrangement of inlet opening, groove 19 Inner surface be inclined-plane, the end shape that pin block 12 is located in central tube 5 matches with groove 19, cooperated by this inclined-plane, It after pin block 12 loses the blocking of piston sleeve 72, can quickly fall off out of groove 19, play unlock central tube 5 and lower contact 4 Effect.And inlet opening 8, pin block 12 be it is multiple, be able to achieve quick anchoring in this way.
In addition, the inner surface and the outer surface in two embodiments in piston only 71 is respectively equipped with and central tube 5 and cylinder sleeve 6 Seal the sealing ring 15 of cooperation.
Be additionally provided with the limiting groove 16 with length in the axial direction in the outer surface of central tube 5, limiting groove 16 be located at into The lower section of fluid apertures 8 is fixed with the positive stop key 17 moved up and down along limiting groove 16 in lower contact 4, in this way when central tube 5 is transferred When, cooperated by positive stop key 17 and limiting groove 16, distance can be transferred to it and above propose distance and limit, securely and reliably.
It is equipped with sealing device between central tube 5 and lower contact 4 and between lower contact 4 and cylinder sleeve 6, this sealing device It also is multiple-sealed circle, sealing device is located at the lower section of limiting groove 16, can be real by upper and lower sealing ring 15 and sealing device Existing plunger shaft 10 is in sealing state always.
The lower end of cylinder sleeve 6 is equipped with the step 18 extended to center of circle direction, and the diameter of step 18 is less than the internal diameter of cylinder sleeve 6, under Connector 4 is sitting on step 18 by the protrusion that outer surface is arranged, and step 18 can play positioning action.
The configuration of the present invention is simple is compact, omits the reset spring of slip insert bottom, can prevent greasy filth etc. from blocking and generating bullet The problem of spring fails, to ensure that the security and stability that slip insert resets.
The present invention is not limited to above-mentioned embodiments, within the knowledge of those skilled in the art, may be used also To make a variety of changes without departing from the purpose of the present invention, the content after variation still falls within protection scope of the present invention.

Claims (9)

1. filling the water anti-jack slips anchor characterized by comprising
Top connection, the top connection lower end are threadedly coupled with central tube, and the lower end outer surface of the top connection is matched equipped with back taper Conjunction face;
Slip insert, the slip insert are set on the outside of central tube, and the upper end inner surface of the slip insert is cooperated by back taper Face is matched with top connection lower end, and the central tube is equipped with inlet opening;
Slip spider, the slip spider are located in the pipe outer wall of center, and lower thread is connected with cylinder sleeve, and the cylinder sleeve lower end is equipped with For limiting the baffle ring of cylinder sleeve, the lower end of the slip insert and slip spider upper end cone match;
Lower contact, the upper end of the lower contact are located in the annular cavity that central tube and cylinder sleeve are formed, and the baffle ring is set in down Joint surface is simultaneously threadedly coupled with lower contact, and the lower contact upper end is equipped with the through-hole being connected to inner cavity, is equipped in the through-hole Pin block for lower contact and central tube to be detachably connected;The slip spider, central tube, cylinder sleeve and lower contact form annular Plunger shaft, the inlet opening are connected to plunger shaft;
Piston, the piston include that the piston only contacted in plunger shaft with piston cavity wall is arranged in and is arranged in piston only The hollow piston sleeve in lower end, the piston sleeve are set on the outside of the upper end of lower contact and are connect by pin with lower contact, The pin block and through-hole are located in piston sleeve and are limited by piston sleeve.
2. water filling anti-jack slips anchor according to claim 1, it is characterised in that: the inlet opening and pin block be it is multiple, The radial dimension of the pin block is less than the radial dimension of plunger shaft, and the central tube is equipped with the groove for grafting pin block.
3. water filling anti-jack slips anchor according to claim 2, it is characterised in that: the position of the groove and the position of inlet opening It sets corresponding.
4. water filling anti-jack slips anchor according to claim 2, it is characterised in that: the position of the groove interlocks with inlet opening Arrangement;The inner surface of the groove is inclined-plane, and the end shape that the pin block is located in central tube is matched with groove.
5. water filling anti-jack slips anchor according to claim 3 or 4, it is characterised in that: the inner surface of the piston only and Outer surface is respectively equipped with the sealing ring with central tube and liner packing cooperation.
6. water filling anti-jack slips anchor according to claim 5, it is characterised in that: the outer surface of the central tube is in the axial direction Equipped with the limiting groove with length, the limiting groove is located at below inlet opening, is fixed in the lower contact along limit The positive stop key that groove moves up and down.
7. water filling anti-jack slips anchor according to claim 6, it is characterised in that: between the central tube and lower contact and Sealing device is equipped between lower contact and cylinder sleeve, the sealing device is located at the lower section of limiting groove.
8. water filling anti-jack slips anchor according to claim 5, it is characterised in that: the upper end of the lower contact is equipped with shoulder, The piston sleeve lower end is sitting on shoulder, and the through-hole is arranged at shoulder.
9. water filling anti-jack slips anchor according to claim 1, it is characterised in that: the lower end of the cylinder sleeve is equipped with to center of circle side To the step of extension, the diameter of the step is less than the internal diameter of cylinder sleeve, and the lower contact is sitting in by the protrusion that outer surface is arranged On step.
CN201910879052.3A 2019-09-18 2019-09-18 Fill the water anti-jack slips anchor Pending CN110439489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910879052.3A CN110439489A (en) 2019-09-18 2019-09-18 Fill the water anti-jack slips anchor

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Application Number Priority Date Filing Date Title
CN201910879052.3A CN110439489A (en) 2019-09-18 2019-09-18 Fill the water anti-jack slips anchor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250649A (en) * 2020-02-07 2021-08-13 四川维泰科创石油设备制造有限公司 Underground plugging system and using method thereof

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Publication number Priority date Publication date Assignee Title
US4311196A (en) * 1980-07-14 1982-01-19 Baker International Corporation Tangentially loaded slip assembly
SU1601341A1 (en) * 1988-04-25 1990-10-23 Всесоюзный научно-исследовательский институт природных газов Packer
RU2009309C1 (en) * 1991-02-07 1994-03-15 Мирсат Мирсалимович Нагуманов Hydromechanical anchor
US5586601A (en) * 1995-04-28 1996-12-24 Camco International Inc. Mechanism for anchoring well tool
CN2457333Y (en) * 2000-08-10 2001-10-31 胜利石油管理局采油工艺研究院 Forced anti-jack slips
CN2648043Y (en) * 2003-09-26 2004-10-13 中国石化胜利油田有限公司采油工艺研究院 Force anchor preventing blocking water
US20070089885A1 (en) * 2005-10-21 2007-04-26 George Grant Bottom hole completion system for an intermittent plunger
CN201574726U (en) * 2009-12-22 2010-09-08 东营斯曼达工贸有限公司 Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields
GB201019984D0 (en) * 2010-11-25 2011-01-05 M I Drilling Fluids Uk Ltd Downhole tool and method
CN202954764U (en) * 2012-10-24 2013-05-29 阜宁县宏达石化机械有限公司 Hydraulic anchor
CN103573207A (en) * 2013-11-19 2014-02-12 王柏林 Injection-compression packer
CN204371173U (en) * 2014-12-12 2015-06-03 中国石油天然气股份有限公司 A kind of anchor
CN204827342U (en) * 2015-06-29 2015-12-02 冯旭辉 Two -way anchoring packer of individual layer water injection
WO2016078181A1 (en) * 2014-11-17 2016-05-26 杰瑞能源服务有限公司 Coiled tubing velocity string and method for gas recovery by liquid unloading
RU2634318C1 (en) * 2016-09-15 2017-10-25 Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" Self-retaining hydraulic armature
CN207813539U (en) * 2017-12-22 2018-09-04 克拉玛依市红都有限责任公司 Hydraulic anchoring device
CN208486863U (en) * 2018-06-25 2019-02-12 四机赛瓦石油钻采设备有限公司 A kind of retrievable hydraulic packer of big orifice bidirectionally anchoring
CN210396676U (en) * 2019-09-18 2020-04-24 东营市元捷石油机械有限公司 Water injection anti-jacking slip anchor
US20210198961A1 (en) * 2018-05-25 2021-07-01 Ardyne Holdings Limited Improvements In Or Relating To Well Abandonment

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311196A (en) * 1980-07-14 1982-01-19 Baker International Corporation Tangentially loaded slip assembly
SU1601341A1 (en) * 1988-04-25 1990-10-23 Всесоюзный научно-исследовательский институт природных газов Packer
RU2009309C1 (en) * 1991-02-07 1994-03-15 Мирсат Мирсалимович Нагуманов Hydromechanical anchor
US5586601A (en) * 1995-04-28 1996-12-24 Camco International Inc. Mechanism for anchoring well tool
CN2457333Y (en) * 2000-08-10 2001-10-31 胜利石油管理局采油工艺研究院 Forced anti-jack slips
CN2648043Y (en) * 2003-09-26 2004-10-13 中国石化胜利油田有限公司采油工艺研究院 Force anchor preventing blocking water
US20070089885A1 (en) * 2005-10-21 2007-04-26 George Grant Bottom hole completion system for an intermittent plunger
CN201574726U (en) * 2009-12-22 2010-09-08 东营斯曼达工贸有限公司 Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields
GB201019984D0 (en) * 2010-11-25 2011-01-05 M I Drilling Fluids Uk Ltd Downhole tool and method
CN202954764U (en) * 2012-10-24 2013-05-29 阜宁县宏达石化机械有限公司 Hydraulic anchor
CN103573207A (en) * 2013-11-19 2014-02-12 王柏林 Injection-compression packer
WO2016078181A1 (en) * 2014-11-17 2016-05-26 杰瑞能源服务有限公司 Coiled tubing velocity string and method for gas recovery by liquid unloading
CN204371173U (en) * 2014-12-12 2015-06-03 中国石油天然气股份有限公司 A kind of anchor
CN204827342U (en) * 2015-06-29 2015-12-02 冯旭辉 Two -way anchoring packer of individual layer water injection
RU2634318C1 (en) * 2016-09-15 2017-10-25 Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" Self-retaining hydraulic armature
CN207813539U (en) * 2017-12-22 2018-09-04 克拉玛依市红都有限责任公司 Hydraulic anchoring device
US20210198961A1 (en) * 2018-05-25 2021-07-01 Ardyne Holdings Limited Improvements In Or Relating To Well Abandonment
CN208486863U (en) * 2018-06-25 2019-02-12 四机赛瓦石油钻采设备有限公司 A kind of retrievable hydraulic packer of big orifice bidirectionally anchoring
CN210396676U (en) * 2019-09-18 2020-04-24 东营市元捷石油机械有限公司 Water injection anti-jacking slip anchor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250649A (en) * 2020-02-07 2021-08-13 四川维泰科创石油设备制造有限公司 Underground plugging system and using method thereof
CN113250649B (en) * 2020-02-07 2023-03-14 四川维泰科创石油设备制造有限公司 Underground plugging system and using method thereof

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