CN203097777U - Oil drainage type hydraulic tubing anchor for oil field downhole pipe string - Google Patents
Oil drainage type hydraulic tubing anchor for oil field downhole pipe string Download PDFInfo
- Publication number
- CN203097777U CN203097777U CN 201220733666 CN201220733666U CN203097777U CN 203097777 U CN203097777 U CN 203097777U CN 201220733666 CN201220733666 CN 201220733666 CN 201220733666 U CN201220733666 U CN 201220733666U CN 203097777 U CN203097777 U CN 203097777U
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- China
- Prior art keywords
- ring
- oil
- central tube
- wall
- anchoring
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- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000004873 anchoring Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model discloses an oil drainage type hydraulic tubing anchor of an oil field downhole tubing string, which is designed for the functions of anchoring and oil drainage of the tubing string, wherein the upper joint of the tubing string is connected with a central tube provided with a radial pressure transmission hole and an adjusting control ring, the adjusting control ring is connected with a connecting ring sleeved with the central tube by a shearing shear pin and an anti-loosening pin, and the outer wall of the connecting ring is connected with a cylinder sleeve; a piston, a lock ring seat, a rubber spring and a conical cylinder which are sequentially sleeved with a central tube are arranged in the cylinder sleeve; the outer wall of the conical cylinder is connected with an axial slip which is provided with a control shear pin and is connected with a baffle ring. The oil pipe anchor can realize anchoring and oil drainage integration, namely, the oil pipe anchor also has the oil drainage function while anchoring a pipe column, and the locking device can ensure reliable anchoring, eliminate oil pipe expansion and improve pump efficiency; the anchoring and releasing operation of the tubular column is simple, the working procedure is simple, and the working efficiency is high.
Description
Technical field
The utility model relates to a kind of oil field down-hole string draining type hydraulic tubing anchor, belongs to the mechanical oil recovery technical field.
Background technology
At present, just need the tubing string of grappling and draining simultaneously, generally adopt mechanical type tubing anchor or fluid pressure type tubing anchor; Generally adopt the mode that on bleeder, increases pin to carry out liquid draining in the tubing string; The working procedure of above-mentioned way is more, complex steps.
Summary of the invention
The purpose of this utility model is to provide a kind of oil field down-hole string draining type hydraulic tubing anchor, and it has both the function of anchoring string and draining, can realize that the grappling of tubing string and draining are integrated.
Concrete technical scheme of the present utility model is as follows:
The top connection upper end connects oil pipe, and the lower end inwall is connected with the radially central tube of pressure transmission hole, and the lower end outer wall connects regulates gate ring; Regulate gate ring by cutting off shear pin is connected the suit central tube with check pin connecting ring, connecting ring outer wall bottom connects cylinder sleeve; In the cylinder sleeve piston, lock ring seat, rubber spring and the awl tube of suit central tube successively; The awl drum outer wall is connected with the axial slips that connects of control shear pin, and axially slips inwall lower end connects baffle ring.
This oil field down-hole string draining type hydraulic tubing anchor can realize that the grappling draining is integrated, promptly also possesses the function of draining in anchoring string, and its locking device can guarantee that grappling is reliable, and it is flexible to eliminate oil pipe, improves pump efficiency; The grappling of tubing string and releasing are simple to operate, and operation is simple, high efficiency.
Description of drawings
Fig. 1 is an oil field down-hole string draining type hydraulic tubing anchor structural representation.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
This hydraulic tubing anchor comprises top connection 1, check pin 2, regulates gate ring 3, cuts off shear pin 4, connecting ring 5, radially pressure transmission hole 6, piston 7, lock ring seat 8, rubber spring 9, cylinder sleeve 10, awl tube 11, control shear pin 12, central tube 13, axially slips 14 and baffle ring 15.
The operating principle of this hydraulic tubing anchor is as follows:
Anchoring string: this tubing anchor is connected in the top of pump, and with tubing string G.I.H together, after the completion oil pumping, liquid reaches piston 7 tops through the radially pressure transmission hole 6 of central tube 13 with pressure.When the oil jacket inside and outside differential pressure reaches 5-6MPa, (also can when oil pipe and pump pressure testing, reach 5-6MPa), axially the control shear pin 12 on the slips 14 is cut off, piston 7 is subjected to top pressure to promote to move down, it is descending to drive lock ring seat 8, rubber spring 9 and awl tube 11, the conical surface of awl tube 11 ejects axial slips 14, is stuck on the internal surface of sleeve pipe, realizes grappling.
Draining is disanchored: when the oil well operation, the upper lifting pipe post is when lifting force surpasses 60kN, cutting off shear pin 4 is cut off, tubing string drives top connection 1, check pin 2, regulates on gate ring 3 and the central tube 13 and move, and makes the radially pressure transmission hole 6 of central tube 13 expose out, thereby realizes draining.Central tube 13 drives on lock ring seat 8, rubber spring 9 and the awl tube 11 and moves simultaneously, makes axial slips 14 force to regain by the mechanical force of dovetail key, removes grappling.
Claims (2)
1. oil field down-hole string draining type hydraulic tubing anchor is characterized in that:
Top connection (1) upper end connects oil pipe, and the lower end inwall is connected with the radially central tube (13) of pressure transmission hole (6), and the lower end outer wall connects regulates gate ring (3); Regulate gate ring (3) by cutting off shear pin (4) is connected suit central tube (13) with check pin (2) connecting ring (5), connecting ring (5) outer wall bottom connects cylinder sleeve (10); In the cylinder sleeve (10) piston (7), lock ring seat (8), rubber spring (9) and the awl tube (11) of suit central tube (13) successively; Awl tube (11) outer wall connects axial slips (14) with what dovetail sunk key mode was connected with control shear pin (12), and axially slips (14) inwall lower end connects baffle ring (15).
2. oil field as claimed in claim 1 down-hole string draining type hydraulic tubing anchor is characterized in that:
Top connection (1) lower end internal thread connects central tube (13), and external screw thread connects regulates gate ring (3); Connecting ring (5) outer wall lower thread connects cylinder sleeve (10); Awl tube (11) outer wall with dovetail sunk key mode connecting axle to slips (14), axial slips (14) the inwall lower end baffle ring 15 that is threaded).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733666 CN203097777U (en) | 2012-12-27 | 2012-12-27 | Oil drainage type hydraulic tubing anchor for oil field downhole pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733666 CN203097777U (en) | 2012-12-27 | 2012-12-27 | Oil drainage type hydraulic tubing anchor for oil field downhole pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097777U true CN203097777U (en) | 2013-07-31 |
Family
ID=48849186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220733666 Expired - Fee Related CN203097777U (en) | 2012-12-27 | 2012-12-27 | Oil drainage type hydraulic tubing anchor for oil field downhole pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089532A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil pipe anti-falling device for oil field horizontal well |
| CN113294106A (en) * | 2021-06-04 | 2021-08-24 | 辽宁新华仪器有限公司 | Release-free oil drainage tubing anchor |
-
2012
- 2012-12-27 CN CN 201220733666 patent/CN203097777U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089532A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil pipe anti-falling device for oil field horizontal well |
| CN105089532B (en) * | 2014-05-14 | 2018-05-04 | 中国石油天然气股份有限公司 | Oil pipe anti-falling device for oil field horizontal well |
| CN113294106A (en) * | 2021-06-04 | 2021-08-24 | 辽宁新华仪器有限公司 | Release-free oil drainage tubing anchor |
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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: 20130731 Termination date: 20211227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |