CN105781460A - Bidirectional automatic anchor - Google Patents
Bidirectional automatic anchor Download PDFInfo
- Publication number
- CN105781460A CN105781460A CN201610183998.2A CN201610183998A CN105781460A CN 105781460 A CN105781460 A CN 105781460A CN 201610183998 A CN201610183998 A CN 201610183998A CN 105781460 A CN105781460 A CN 105781460A
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor tooth
- tooth sheet
- supervisor
- pressing cap
- 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
- 230000002457 bidirectional effect Effects 0.000 title abstract 4
- 238000003825 pressing Methods 0.000 claims description 22
- 238000005452 bending Methods 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a bidirectional automatic anchor and mainly solves the problems of eccentric wear of a sucker rod and complicated structure and operation due to the fact that a tubing string is easily bent when the tubing string is anchored by a conventional tubing anchor. The bidirectional automatic anchor is characterized in that an upper press cap (4) is in threaded connection onto a main pipe (1) below an upper joint (2), a lower press cap (5) is in threaded connection onto the main pipe (1) above a lower joint (3), a through hole is formed in the lower end surface of the lower press cap (5), more than two anchor tooth pieces (6) are uniformly distributed between the upper press cap (4) and the lower press cap (5), outer surfaces of the anchor tooth pieces (6) are arc-shaped, anchor teeth are arranged outside the anchor tooth pieces (6), arc-shaped grooves are formed in the anchor tooth pieces (6), an arc-shaped boss is fixed on the main pipe (1), and springs are arranged in the upper ends and the lower ends of the anchor tooth pieces (6) respectively. The bidirectional automatic anchor has the characteristics that the tubing string is not prone to bending during tubing string anchoring, the problem of eccentric wear of the sucker rod is solved effectively, and the structure and operation are simple.
Description
Technical field:
The present invention relates to the downhole tool used by field of oil field oil extraction screw bolt well, especially two-way automatic anchor.
Background technology:
In screw bolt well production process, it is necessary to tubing anchor by tubing anchor, it is prevented that oil pipe or screw pump rotate.And existing tubing anchor is easily generated bending owing to reasons in structure exists tubing string when grappling tubing string, cause sucker rod partial wear, structurally and operationally complicated problem.It is unfavorable for popularization and application.
Summary of the invention:
It is easily generated bending to solve existing tubing anchor tubing string when grappling tubing string, causes sucker rod partial wear, damage sleeve pipe, structurally and operationally complicated problem.The present invention provides a kind of two-way automatic anchor.This two-way automatic anchor has the tubing string when grappling tubing string and is not likely to produce bending, effectively solves sucker rod partial wear problem, structurally and operationally simple feature.
The technical scheme is that this two-way automatic anchor includes supervisor.There is top connection supervisor upper end, there is lower contact supervisor lower end, under top connection, supervisor is threaded connection upper pressing cap, lower contact is responsible for and has been threaded connection lower pressing cap, there is through hole lower pressing cap lower surface, more than 2 anchor tooth sheets it are evenly equipped with between upper pressing cap and lower pressing cap, it is circular arc outside anchor tooth sheet, outside anchor tooth sheet, a left side is half side anchor tooth clockwise, outside anchor tooth sheet, the right side is half side anchor tooth counterclockwise, anchor tooth sheet inner face has circular groove, being fixed with circular arc on the supervisor of corresponding circular groove can outwardly against the boss of anchor tooth sheet, anchor tooth sheet is equipped with spring in top and bottom respectively, cylinder helped by spring one end set, the other end is placed in support counterbore.
There is advantages that this two-way automatic anchor is owing to adopting supervisor upper end to have top connection, there is lower contact supervisor lower end, under top connection, supervisor is threaded connection upper pressing cap, lower contact is responsible for and has been threaded connection lower pressing cap, there is through hole lower pressing cap lower surface, more than 2 anchor tooth sheets it are evenly equipped with between upper pressing cap and lower pressing cap, it is circular arc outside anchor tooth sheet, outside anchor tooth sheet, a left side is half side anchor tooth clockwise, outside anchor tooth sheet, the right side is half side anchor tooth counterclockwise, anchor tooth sheet inner face has circular groove, the supervisor of corresponding circular groove is fixed with arc cam, anchor tooth sheet top and bottom are built-in with the structure of spring.Utilize arc cam outwardly against anchor tooth sheet, make anchor tooth sheet be anchored in sleeve pipe, thus eliminate tubing string buckling phenomenon and produce, effectively solve sucker rod partial wear, and structurally and operationally simple.This two-way automatic anchor has the tubing string when grappling tubing string and is not likely to produce bending thus, effectively solves sucker rod partial wear problem, structurally and operationally simple feature.
Accompanying drawing illustrates:
Accompanying drawing 1 is present configuration schematic diagram.
1-supervisor, 2-top connection, 3-lower contact, 4-upper pressing cap, 5-lower pressing cap, 6-anchor tooth sheet in figure.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in accompanying drawing, this two-way automatic anchor includes supervisor 1.It is responsible for 1 upper end and has top connection 2, it is responsible for 1 lower end and has lower contact 3, 2 times supervisors 1 of top connection have been threaded connection upper pressing cap 4, lower contact 3 is responsible on 1 and has been threaded connection lower pressing cap 5, there is through hole lower pressing cap 5 lower surface, 4 anchor tooth sheets 6 it are evenly equipped with between upper pressing cap 4 and lower pressing cap 5, it is circular arc outside anchor tooth sheet 6, outside anchor tooth sheet 6, a left side is half side anchor tooth clockwise, outside anchor tooth sheet 6, the right side is half side anchor tooth counterclockwise, anchor tooth sheet 6 inner face has circular groove, being fixed with circular arc on the supervisor (1) of corresponding circular groove can outwardly against the boss of anchor tooth sheet 6, anchor tooth sheet 6 is equipped with spring in top and bottom respectively, cylinder helped by spring one end set, the other end is placed in support counterbore.
Time actually used, first the lower contact 5 of this two-way automatic anchor being connected with tubing string, top connection is connected with screw pump and together goes into the well.When screw pump normal operation, rotor makes the supervisor 1 of screw pump and this two-way automatic anchor produce to rotate, anchor tooth sheet 6 is under the action of the spring, friction is produced with sleeve pipe, thus making supervisor 1 anchor tooth sheet 6 produce relative displacement, and expand outwardly, namely arc cam is outwardly against anchor tooth sheet 6, tubing string is anchored in sleeve pipe by this two-way automatic anchor, namely completes grappling.
This two-way automatic anchor has need not the automatic grappling of any operation, strong adaptability, whether internal surface of sleeve pipe fouling does not affect grappling, and sand production neither affects grappling, nor affect on unfreezing, oil pipe naturally droops, do not bend, not eccentric wear, do not damage sleeve pipe, extend pump detection period, energy-saving and production-increase, during job execution, lift up tubing string, automatic unfreezing, the feature that can use continuously.
Claims (1)
- null1. a two-way automatic anchor，Including supervisor (1)，It is characterized in that: there is top connection (2) supervisor (1) upper end，There is lower contact (3) supervisor (1) lower end，It is responsible under top connection (2) on (1) and has been threaded connection upper pressing cap (4)，The upper supervisor (1) of lower contact (3) has been threaded connection lower pressing cap (5)，There is through hole lower pressing cap (5) lower surface，More than 2 anchors tooth sheet (6) it are evenly equipped with between upper pressing cap (4) and lower pressing cap (5)，Anchor tooth sheet (6) outside is circular arc，A left side, anchor tooth sheet (6) outside is half side anchor tooth clockwise，The right side, anchor tooth sheet (6) outside is half side anchor tooth counterclockwise，Anchor tooth sheet (6) inner face has circular groove，Being fixed with circular arc on the supervisor (1) of corresponding circular groove can outwardly against the boss of anchor tooth sheet (6)，Anchor is equipped with spring in tooth sheet (6) top and bottom respectively，Cylinder helped by spring one end set，The other end is placed in support counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183998.2A CN105781460A (en) | 2016-03-21 | 2016-03-21 | Bidirectional automatic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183998.2A CN105781460A (en) | 2016-03-21 | 2016-03-21 | Bidirectional automatic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105781460A true CN105781460A (en) | 2016-07-20 |
Family
ID=56391101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610183998.2A Pending CN105781460A (en) | 2016-03-21 | 2016-03-21 | Bidirectional automatic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781460A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630474Y (en) * | 2003-07-28 | 2004-08-04 | 窦锡陆 | Rotary oil pipe positioning anchor |
| CN2713118Y (en) * | 2004-06-11 | 2005-07-27 | 梁伟成 | Self-locking tubing anchor |
| CN2734979Y (en) * | 2004-09-30 | 2005-10-19 | 刘星海 | Rotary eccentric tubing anchor |
| US20150047824A1 (en) * | 2013-08-16 | 2015-02-19 | Baker Hughes Incorporated | Multi-stage Locking System for Selective Release of a Potential Energy Force to Set a Subterranean Tool |
| CN204200130U (en) * | 2014-11-13 | 2015-03-11 | 张晓义 | Flap-type expansion anchor |
-
2016
- 2016-03-21 CN CN201610183998.2A patent/CN105781460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630474Y (en) * | 2003-07-28 | 2004-08-04 | 窦锡陆 | Rotary oil pipe positioning anchor |
| CN2713118Y (en) * | 2004-06-11 | 2005-07-27 | 梁伟成 | Self-locking tubing anchor |
| CN2734979Y (en) * | 2004-09-30 | 2005-10-19 | 刘星海 | Rotary eccentric tubing anchor |
| US20150047824A1 (en) * | 2013-08-16 | 2015-02-19 | Baker Hughes Incorporated | Multi-stage Locking System for Selective Release of a Potential Energy Force to Set a Subterranean Tool |
| CN204200130U (en) * | 2014-11-13 | 2015-03-11 | 张晓义 | Flap-type expansion anchor |
Non-Patent Citations (1)
| Title |
|---|
| 孙绍彬: "一种螺杆泵专用油管锚定器的研究与应用", 《中国石油和化工标准与质量》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |