CN201963234U - Hydraulic anchor with inclined anchor fluke - Google Patents
Hydraulic anchor with inclined anchor fluke Download PDFInfo
- Publication number
- CN201963234U CN201963234U CN2011200669949U CN201120066994U CN201963234U CN 201963234 U CN201963234 U CN 201963234U CN 2011200669949 U CN2011200669949 U CN 2011200669949U CN 201120066994 U CN201120066994 U CN 201120066994U CN 201963234 U CN201963234 U CN 201963234U
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- CN
- China
- Prior art keywords
- anchor
- fluke
- press strip
- anchor fluke
- spring
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic anchor with an inclined anchor fluke, which comprises an anchor body, a press strip screw, the anchor fluke, a press strip, a spring, a lining pipe, a stabilizing nail and a lower joint, wherein the anchor body is connected with the lower joint, an inclined upward hole is arranged on the anchor body, the anchor fluke is arranged in the hole, the spring and the press strip are sequentially arranged on the anchor fluke, and the press strip is fixed through the press strip screw and the anchor body. The hydraulic anchor has the characteristics that: 1. through setting the elastic force of the spring of the anchor fluke, the hydraulic anchor is ensured not to work within a certain pressure range, so the resistance generated when a tool enters is operated is avoided; 2. the anchor fluke is pushed through gap overflowing of the lining pipe and the anchor body, no scale is accumulated in an anchor cavity, and the hydraulic anchor can not be easily clamped; and 3. when a pipe column is upwards lifted, the friction force is exerted on the anchor fluke by a sleeve pipe, the component force is exerted in the axial direction of the anchor fluke, the strength is enhanced when the anchor fluke retracts, the unclamping is easy, and the like. The hydraulic anchor is widely applied to underground process tools in petroleum extraction.
Description
One, technical field
The utility model relates to oilfield oil well down-hole string anchoring device, particularly a kind of anchor fluke inclined type hydraulic anchor.
Two, background technology
Existing a kind of down-hole string hydraulic anchor, its structure is on the anchor body anchor fluke to be installed, the anchor fluke central axis is perpendicular to anchor body central axis.The hydraulic anchor of this structure, for the grappling of oilfield oil well down-hole string contributes, but it exists following shortcoming or deficiency simultaneously: the back anchor fluke of 1. working just relies on the elastic force of anchor fluke medi-spring to reclaim when reclaiming, owing to the anchor tooth usually occurs because of factor affecting such as sand card, fouling, spring failures after work a period of time, cause and normally to reclaim phenomenon; 2. because the anchor tooth can not normally reclaim, pretending the industry tubing string can not normally trip out, even causes the oil-water well heavy repair task, the increase of work operations amount, the raising of operating cost.
Three, utility model content
Order of the present utility model provides a kind of anchor fluke inclined type hydraulic anchor, adopt in the hydraulic anchor anchor 12 holes obliquely are set, be separately installed with 12 anchor flukes in the hole, the structure that the anchor fluke spring is positioned at the anchor fluke blind hole and is located mutually by press strip and press strip screw, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
Anchor fluke inclined type hydraulic anchor described in the utility model comprises anchor body, press strip screw, anchor fluke, press strip, spring, bushing pipe, steady nail, lower contact.Described anchor body is connected with lower contact, and the anchor body is provided with hole obliquely, and anchor fluke is installed in the hole, and spring and press strip are installed on the anchor fluke in turn, and press strip is fixed by press strip screw and anchor body.
Wherein, the center line of the center line of described anchor body and anchor fluke is provided with 82 °-85 ° angle of inclination away from the lower contact direction.
Described liner at its lower end has gap.Be provided with the space between described anchor body and the bushing pipe." O " type circle is installed in described anchor body, anchor fluke and the lower contact.The junction of described anchor body and anchor fluke is equipped with steady nail.Described anchor body is provided with 12 holes obliquely, and an anchor fluke and a spring are installed in every hole, and press strip is installed on the spring, and press strip is fixed by press strip screw and anchor body.
The utility model has following advantage compared with prior art:
1, by setting the elastic force size of anchor fluke spring, guarantees that hydraulic anchor is not worked in the certain pressure scope, thereby be hampered when avoiding being lowered to instrument;
2, the slit overcurrent by bushing pipe and anchor body promotes anchor fluke, and non-scaling in the anchor fluke chamber is difficult for blocking;
3, sleeve pipe has frictional force to anchor fluke during the upper lifting pipe post, at anchor fluke component is arranged axially, and strength strengthened and is easy to unfreezing when anchor fluke was regained.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic diagram of the present utility model;
Five, the specific embodiment
Consult accompanying drawing, a kind of anchor fluke inclined type hydraulic anchor comprises anchor body 1, press strip screw 2, anchor fluke 4, press strip 5, spring 6, bushing pipe 7, surely follows closely 8, lower contact 9.Anchor body 1 is connected with lower contact 9, and anchor body 1 is provided with hole obliquely, and anchor fluke 4 is installed in the hole, and spring 6 and press strip 5 are installed on the anchor fluke 4 in turn, and press strip 5 is fixed by press strip screw 2 and anchor body 1.
The center line of the center line of anchor body 1 and anchor fluke 4 is provided with 82 °-85 ° angle of inclination away from lower contact 9 directions, is expressed as 83 ° among the figure.Bushing pipe 7 lower ends have gap.Be provided with the space between anchor body 1 and the bushing pipe 7." O " type circle 3 is installed in anchor body 1, anchor fluke 4 and the lower contact 9.Anchor body 1 is equipped with steady nail 8 with the junction of anchor fluke 4.The anchor body is provided with 12 holes obliquely, and an anchor fluke 4 and a spring 6 are installed in every hole, and press strip 5 is installed on the spring 6, and press strip 5 is fixed by press strip screw 2 and anchor body 1.
During operation,, anchor fluke 4 is ejected when hydraulic pressure in oil pipe is elevated to can compress spring 6 time, when the pressure in the oil pipe reduced, anchor fluke 4 was regained under the elastic force of spring 6, ran in the time of can't regaining or regain thoroughly, the upper lifting pipe post, anchor fluke 4 can promote anchor fluke 4 to reclaim with the frictional force of casing wall.
Claims (7)
1. anchor fluke inclined type hydraulic anchor, comprise anchor body, press strip screw, anchor fluke, press strip, spring, bushing pipe, steady nail, lower contact, it is characterized in that described anchor body is connected with lower contact, the anchor body is provided with hole obliquely, anchor fluke is installed in the hole, spring and press strip are installed on the anchor fluke in turn, and press strip is fixed by press strip screw and anchor body.
2. anchor fluke inclined type hydraulic anchor according to claim 1 is characterized in that the center line of described anchor body and the center line of anchor fluke are provided with 82 °-85 ° angle of inclination away from the lower contact direction.
3. anchor fluke inclined type hydraulic anchor according to claim 1 is characterized in that described liner at its lower end has gap.
4. according to claim 1 or 3 described anchor fluke inclined type hydraulic anchors, it is characterized in that being provided with the space between described anchor body and the bushing pipe.
5. anchor fluke inclined type hydraulic anchor according to claim 1 is characterized in that being equipped with in described anchor body, anchor fluke and the lower contact " O " type circle.
6. anchor fluke inclined type hydraulic anchor according to claim 1 or 5 is characterized in that the junction of described anchor body and anchor fluke is equipped with steady nail.
7. anchor fluke inclined type hydraulic anchor according to claim 1 is characterized in that described anchor body is provided with 12 holes obliquely, and an anchor fluke and a spring are installed in every hole, and press strip is installed on the spring, and press strip is fixed by press strip screw and anchor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200669949U CN201963234U (en) | 2011-03-07 | 2011-03-07 | Hydraulic anchor with inclined anchor fluke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200669949U CN201963234U (en) | 2011-03-07 | 2011-03-07 | Hydraulic anchor with inclined anchor fluke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963234U true CN201963234U (en) | 2011-09-07 |
Family
ID=44525769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200669949U Expired - Fee Related CN201963234U (en) | 2011-03-07 | 2011-03-07 | Hydraulic anchor with inclined anchor fluke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963234U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518407A (en) * | 2012-01-05 | 2012-06-27 | 西南石油大学 | Cable type underground axial force generating device |
| CN102606100A (en) * | 2012-03-02 | 2012-07-25 | 乐清市乐吉石油机械厂 | Hydraulic anchor |
| CN115045627A (en) * | 2022-05-11 | 2022-09-13 | 大庆宏测技术服务有限公司 | Hydraulic anchor capable of improving self-righting effect |
| CN115680530A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Prestressed well completion ground anchor |
-
2011
- 2011-03-07 CN CN2011200669949U patent/CN201963234U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518407A (en) * | 2012-01-05 | 2012-06-27 | 西南石油大学 | Cable type underground axial force generating device |
| CN102518407B (en) * | 2012-01-05 | 2014-05-07 | 西南石油大学 | Cable type underground axial force generating device |
| CN102606100A (en) * | 2012-03-02 | 2012-07-25 | 乐清市乐吉石油机械厂 | Hydraulic anchor |
| CN115680530A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Prestressed well completion ground anchor |
| CN115045627A (en) * | 2022-05-11 | 2022-09-13 | 大庆宏测技术服务有限公司 | Hydraulic anchor capable of improving self-righting effect |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20160307 |