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 PDFInfo
- 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
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 29
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
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.
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)
| 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 |
-
2017
- 2017-09-04 CN CN201710786441.2A patent/CN107542418A/en active Pending
Cited By (2)
| 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 |
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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 |