CN107542418A - High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work - Google Patents

High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work Download PDF

Info

Publication number
CN107542418A
CN107542418A CN201710786441.2A CN201710786441A CN107542418A CN 107542418 A CN107542418 A CN 107542418A CN 201710786441 A CN201710786441 A CN 201710786441A CN 107542418 A CN107542418 A CN 107542418A
Authority
CN
China
Prior art keywords
central tube
piston
anchoring device
gas well
oil pipe
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
CN201710786441.2A
Other languages
Chinese (zh)
Inventor
张国强
熊和贵
郭锐锋
李元斌
向少华
练以峰
唐永祥
刘浩
贺富贵
严德荣
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 Petrochemical Corp
Sinopec Oilfield Service Corp
Sinopec Jianghan Petroleum Engineering Co Ltd
Original Assignee
Sinopec Oilfield Service Corp
Sinopec Jianghan Petroleum Engineering 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 Sinopec Oilfield Service Corp, Sinopec Jianghan Petroleum Engineering Co Ltd filed Critical Sinopec Oilfield Service Corp
Priority to CN201710786441.2A priority Critical patent/CN107542418A/en
Publication of CN107542418A publication Critical patent/CN107542418A/en
Pending legal-status Critical Current

Links

Abstract

The present invention relates to a kind of high-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work, including central tube, the outside of the central tube is provided with top connection, cylinder barrel, spring base, upper cone, slips, lower cone and the lower contact being sequentially connected, piston is provided between the central tube and cylinder barrel, compression spring is provided between the piston and spring base, the slips connects back-moving spring, slip sleeve is provided with the outside of the slips, the piston passes through the second shearing pin connection by the first shearing pin connection, the slip sleeve with central tube with upper cone.Compared with existing anchor tool, type of the present invention has the characteristics of simple in construction, seal is few, and anchorage force is strong, and cost is low, grappling is reliable, and releasing grappling is easy.

Description

High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work
Technical field
The present invention relates to formation testing Well Completion Engineering of Oil Reservoirs field, more specifically to a kind of high-pressure oil-gas well hydraulic oil pipe anchoring Device and its method of work.
Background technology
Reservoir reconstruction is to improve the effective of oil-gas field development to have one of section, during reservoir reconstruction, due to well head pressure Raise and cryogen is pumped into pit shaft, cause formation testing operation tubing string to deform upon, influence packer stabilized seal, and then lead Cause construction failure.At present, mainly using anchoring device by being built the pressure in oil pipe, anchoring device slips is in the presence of fluid pressure Protruding, clamping internal surface of sleeve pipe realizes that grappling acts, and plays a part of anchoring string, reduces packer stress.When oil jacket pressure After dynamic balance, slips is withdrawn under the elastic force effect of baffle plate inner spring, releases grappling effect.By developing a kind of high-pressure oil-gas well Hydraulic oil pipe anchoring device can effectively reduce packer and lose envelope probability, smoothly implement to escort for reservoir reconstruction.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of high-pressure oil-gas well hydraulic oil pipe anchoring device, pass through by Anchoring device slips anchoring plays a part of anchoring string on internal surface of sleeve pipe, reduces packer stress, is that reservoir reconstruction is smooth Implementation is ready, and can reduce the possibility that the packer in fracturing process loses envelope.
The technical solution adopted for the present invention to solve the technical problems is:Construct a kind of high-pressure oil-gas well hydraulic oil pipe anchoring Device, including central tube, the outside of the central tube be provided with the top connection being sequentially connected, cylinder barrel, spring base, upper cone, slips, Lower cone and lower contact, piston is provided between the central tube and cylinder barrel, compression spring is provided between the piston and spring base, The slips connects back-moving spring, and slip sleeve is provided with the outside of the slips, and the piston is connected with central tube by the first shear pin Connect, the slip sleeve passes through the second shearing pin connection with upper cone.
In such scheme, the first O-ring seal is provided between the central tube and top connection.
In such scheme, also connected between the central tube and top connection by the first soket head cap screw.
In such scheme, the second O-ring seal is provided between the central tube and cylinder barrel.
In such scheme, the 3rd O-ring seal is provided between the piston and cylinder barrel.
In such scheme, the 4th O-ring seal is provided between the piston and central tube.
In such scheme, also connected between the central tube and lower contact by the second soket head cap screw.
In such scheme, the 5th O-ring seal is provided between the central tube and lower contact.
The high-pressure oil-gas well hydraulic oil pipe anchoring device method of work of the present invention is as follows:
When carrying out grappling, s act on the upper surface of piston by the hole of central tube, suppress cutting first Shear pin, the elastic force of piston overpowers compression spring continue traveling downwardly, and promote upper cone, the second shear pin are cut, under upper cone continues OK, promote slips to stretch out, be anchored in sleeve pipe;
When releasing grappling, oil pipe pressure release, in the presence of compression spring and the oily annulus pressure of set, piston stroking upward, and drive Upper cone moves up, and back-moving spring causes slips to shrink, and releases grappling.
Implement the high-pressure oil-gas well hydraulic oil pipe anchoring device of the present invention, have the advantages that:
1 present invention is acted on piston by using suppressing fluid pressure, and descent of piston is cut each on slip sleeve and piston Shear pin, drive upper cone descending, now lower cone keeps support, is engaged in internal surface of sleeve pipe so as to open slips, completes grappling; Fluid pressure is higher, and piston thrust is bigger, and it is more that cone squeezes into slips, and bi-directional slip occlusion sleeve pipe is tighter, and bidirectionally anchoring more has Effect.When releasing grappling, pressure release can make piston stroking upward, and drive upper cone, and back-moving spring causes upper cone to retract, and slips is received Contracting.
2nd, compared with existing anchor tool, type of the present invention has simple in construction, and seal is few, and anchorage force is strong, and cost is low, anchor It is fixed reliable, release the characteristics of grappling is easy.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of high-pressure oil-gas well hydraulic oil pipe anchoring device of the present invention.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now compares accompanying drawing and describe in detail The embodiment of the present invention.
As shown in figure 1, high-pressure oil-gas well hydraulic oil pipe anchoring device of the present invention includes central tube 11, the outside of central tube 11 Provided with top connection 1, cylinder barrel 5, spring base 12, upper cone 13, slips 15, lower cone 18 and the lower contact 21 being sequentially connected, center Piston 10 is provided between pipe 11 and cylinder barrel 5, compression spring 9 is provided between piston 10 and spring base 12, the connection of slips 15 resets bullet Spring 16, the outside of slips 15 are provided with slip sleeve 17, and piston 10 is connected with central tube 11 by the first shear pin 6, slip sleeve 17 with it is upper Cone 13 is connected by the second shear pin 14.
The first O-ring seal 2 is provided between central tube 11 and top connection 1, also passes through between central tube 11 and top connection 1 One soket head cap screw 3 connects.The second O-ring seal 4 is provided between central tube 11 and cylinder barrel 5.It is provided between piston 10 and cylinder barrel 5 3rd O-ring seal 7.The 4th O-ring seal 8 is provided between piston 10 and central tube 11.Between central tube 11 and lower contact 21 Also connected by the second soket head cap screw 19.The 5th O-ring seal 20 is provided between central tube 11 and lower contact 21.
The specific works method of high-pressure oil-gas well hydraulic oil pipe anchoring device is as follows:
When needing grappling, s act on the upper surface of piston 10 by the hole of central tube 11, O-shaped by the 3rd Sealing ring 7, the 4th O-ring seal 8 seal to upper surface, continue to suppress and cut the first shear pin 6, piston 10 overcomes compression spring 9 continue traveling downwardly, and promote upper cone 13 to cut the second shear pin 14, and upper cone 13 continues traveling downwardly, and promote slips 15 to be anchored on sleeve pipe It is interior.Fluid pressure is higher, and the thrust of piston 10 is bigger, and it is more that cone squeezes into slips, and bi-directional slip occlusion sleeve pipe is tighter, bidirectionally anchoring More effectively.
When releasing grappling, oil pipe pressure release, in the presence of spring 9 and the oily annulus pressure of set, piston 10 is up, and drives Cone 13, back-moving spring 16 cause slips 15 to shrink, and release grappling.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot Form, these are belonged within the protection of the present invention.

Claims (9)

1. a kind of high-pressure oil-gas well hydraulic oil pipe anchoring device, it is characterised in that including central tube, set on the outside of the central tube Have the top connection being sequentially connected, cylinder barrel, spring base, upper cone, slips, lower cone and a lower contact, the central tube and cylinder barrel it Between be provided with piston, be provided with compression spring between the piston and spring base, the slips connects back-moving spring, on the outside of the slips Provided with slip sleeve, the piston passes through the second shearing by the first shearing pin connection, the slip sleeve with central tube with upper cone Pin connection.
2. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the central tube with it is upper The first O-ring seal is provided between joint.
3. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the central tube with it is upper Also connected between joint by the first soket head cap screw.
4. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the central tube and cylinder The second O-ring seal is provided between cylinder.
5. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the piston and cylinder barrel Between be provided with the 3rd O-ring seal.
6. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the piston and center The 4th O-ring seal is provided between pipe.
7. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the central tube is with Also connected between joint by the second soket head cap screw.
8. high-pressure oil-gas well hydraulic oil pipe anchoring device according to claim 1, it is characterised in that the central tube is with The 5th O-ring seal is provided between joint.
A kind of 9. method of work of the high-pressure oil-gas well hydraulic oil pipe anchoring device described in claim 1, it is characterised in that
When carrying out grappling, s act on the upper surface of piston by the hole of central tube, suppress the shearing of cutting first Pin, the elastic force of piston overpowers compression spring are continued traveling downwardly, and promote upper cone, cut the second shear pin, and upper cone is continued traveling downwardly, pushed away Dynamic slips stretches out, and is anchored in sleeve pipe;
When releasing grappling, oil pipe pressure release, in the presence of compression spring and the oily annulus pressure of set, piston stroking upward, and drive epicone Body moves up, and back-moving spring causes slips to shrink, and releases grappling.
CN201710786441.2A 2017-09-04 2017-09-04 High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work Pending CN107542418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710786441.2A CN107542418A (en) 2017-09-04 2017-09-04 High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710786441.2A CN107542418A (en) 2017-09-04 2017-09-04 High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work

Publications (1)

Publication Number Publication Date
CN107542418A true CN107542418A (en) 2018-01-05

Family

ID=60957941

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710786441.2A Pending CN107542418A (en) 2017-09-04 2017-09-04 High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work

Country Status (1)

Country Link
CN (1) CN107542418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113107406A (en) * 2021-04-25 2021-07-13 大庆市晟威机械制造有限公司 Oil pipe tension anchor for stabilizing oil pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113107406A (en) * 2021-04-25 2021-07-13 大庆市晟威机械制造有限公司 Oil pipe tension anchor for stabilizing oil pipe
CN113107406B (en) * 2021-04-25 2021-10-29 大庆市晟威机械制造有限公司 Oil pipe tension anchor for stabilizing oil pipe

Similar Documents

Publication Publication Date Title
CN104963652B (en) From sealed compression packer
CN108019178B (en) Construction method for plugging production pipe column under pressure in pipe
CN105971537B (en) A kind of deblocking Refloatation method of retrievable bridge plug solution sealing mechanism
RU2282708C1 (en) Downhole hydraulic jack for releasing of stuck pipes
CN104453757B (en) Thick oil steam drive unseals bidirectionally anchoring tubing anchor
CN207296937U (en) High-pressure oil-gas well hydraulic oil pipe anchoring device
CN206053921U (en) A kind of self-unsealing successively sand washing layered fracturing pipe string
CN202531066U (en) Blending and diluting valve capable of examining seal annularly for oil and gas fields
RU2414586C1 (en) Procedure for isolating operations in well and packer equipment
CN201794552U (en) Large-diameter fracturing packer
CN107542418A (en) High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work
CN204252930U (en) Fracturing packer
CN206737855U (en) A kind of new well completion packer slips
CN215408540U (en) Pressure-testing tubing anchor
CN213838563U (en) Hydraulic control oil pipe fixer
CN207080207U (en) A kind of oil field is every excavating technology tubing string
CN213980719U (en) Exempt from to suppress oil pipe anchor
CN106481324B (en) Hydraulic control self-unsealing type staged fracturing string
CN104329046B (en) Rotary hydraulic packer
CN111058792A (en) Coiled tubing perforation-free under-pressure operation-free well completion device and method
CN112523734A (en) Oil pipe dragging fracturing string with packer as bottom seal and fracturing method
CN205445525U (en) Can formula of dragging for pressure shutoff in pit instrument
CN206299366U (en) A kind of anti-premature setting open hole packer
CN202348212U (en) Annular hydraulic compression type packer
CN109209284B (en) Long well section casing damage well subsidy reinforcing apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20200818

Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No.

Applicant after: SINOPEC Group

Applicant after: SINOPEC OILFIELD SERVICE Corp.

Applicant after: SINOPEC JIANGHAN OILFIELD SERVICE Corp.

Address before: 100101, Beijing, Chaoyang District Xin Tung Street, a No. 6, Twelfth layers

Applicant before: SINOPEC OILFIELD SERVICE Corp.

Applicant before: SINOPEC JIANGHAN OILFIELD SERVICE Corp.

TA01 Transfer of patent application right