CN2648043Y - Force anchor preventing blocking water - Google Patents
Force anchor preventing blocking water Download PDFInfo
- Publication number
- CN2648043Y CN2648043Y CN 03253690 CN03253690U CN2648043Y CN 2648043 Y CN2648043 Y CN 2648043Y CN 03253690 CN03253690 CN 03253690 CN 03253690 U CN03253690 U CN 03253690U CN 2648043 Y CN2648043 Y CN 2648043Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- cylinder sleeve
- utility
- model
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an anti-seize hydraulic anchor, including an upper connector (1), an upper and a lower pistons (4, 5), a center pipe (9), a spring (7) and a slip (10), the utility model is characterized in that: the center pipe (9) and a control gauge ring (2) are connected to the upper connector (1), the outside of the center pipe (9) is provided with a cylinder sleeve (6), the upper and the lower pistons (4, 5) are arranged in a ring-shaped space which is formed by the cylinder sleeve (6) and the center pipe (9), a cone body (8) is connected to the lower piston (5), an inner cavity of the cone body (8) is provided with the spring (7), the conical surface of the cone body is connected with a slip (10) dovetail slot for matching, the upper part of the upper piston (4) is fixed with the control gauge ring (2) by a shear pin (3), and the lower part is connected with the cylinder sleeve (6). The utility model is characterized by tight structure, no scale of the slip and free folding and releasing, the utility model is further provided with a forced recovery structure in case of emergency; the utility model also has low cost and high efficiency, which can be widely applied in the water injection matching process.
Description
One, technical field
The utility model relates to oil exploitation down-hole kit, specifically a kind of water injection well anti-sticking hydraulic anchor.
Two, background technology
Existing water injection well is made of anchor body and anchor fluke with hydraulic anchor, its anchor fluke is pushed the condom inwall to by several radial pistons, after the anchor fluke grappling, just has several cavitys on the hydraulic anchor inwall, inject water during water filling and just in cavity, form fouling, the fouling meeting stops the anchor fluke withdrawal, thereby hydraulic anchor blocked, and causes workover, influence water filling, influence is recovered the oil, and increases operating cost, has improved cost of production.
Three, summary of the invention
In order to solve above-mentioned problems of the prior art, the utility model provides a kind of improved anti-sticking hydraulic anchor, and its technical scheme is to comprise top connection, last lower piston, central tube, spring and slips.Connect central tube and control rule ring in the described top connection, described central tube is installed cylinder sleeve outward, installs lower piston in the annular space that this cylinder sleeve and central tube form.Described upper piston top is fixed by shear pin and control rule ring, and the bottom connects cylinder sleeve.Connect cone on the described lower piston, this cone cavity is settled spring, and its cone conical surface is the dovetail groove cooperation with slips and links to each other.
Wherein, central tube top was provided with opening, and the bottom is provided with outer shoulder, and seat is given birth to outside this on shoulder in the lower end of spring.
Wherein, described cone bottom is provided with interior shoulder, and shoulder is located mutually with the outer shoulder of central tube in this.
The utility model compared with prior art has following advantage and beneficial effect:
1, because the utility model has adopted axial seal formula piston structure, do not have the piston cavity problem, in a single day water filling stops, and piston promptly sets back, and slips is also promptly retracted original position by cone, and therefore, thoroughly having solved scale problems and slips can not the return problem;
2, during the utility model piston return, will retract slips, and easily remove the grappling with sleeve pipe, slips acts freely;
When 3, contingency occurred by card, the upper lifting pipe post was cut off shear pin, and slips is regained by force;
4, avoid slips to be blocked, promptly reduced the heavy repair task of well, thereby also just reduced cost of production, improved water-injection efficiency.
Four, description of drawings
Accompanying drawing is a kind of anti-sticking hydraulic anchor structural representation.
Five, the specific embodiment
Referring to accompanying drawing, a kind of anti-sticking hydraulic anchor comprises top connection 1, upper piston 4, lower piston 5, central tube 9, spring 7 and slips 10.Link in the top connection 1 and connect central tube 9, link outward and connect control rule ring 2, the central tube 9 outer cylinder sleeves 6 of installing are installed in the annular space that cylinder sleeve 6 and central tube 9 form, lower piston 4,5.Upper piston 4 tops are fixed by shear pin 3 and control rule ring 2, and the bottom connects cylinder sleeve 6.Connect cone 8 on the lower piston 5, the inner chamber of cone 8 is settled spring 7, and the conical surface of cone 8 links to each other for swallow layer groove cooperates with slips 10.Cylinder sleeve 6 bottoms are provided with the window that makes slips 10 emit or regain.
Claims (3)
1, a kind of anti-sticking hydraulic anchor, comprise top connection (1), on, lower piston (4,5), central tube (9), spring (7) and slips (10), it is characterized in that connection central tube (9) is gone up in described top connection (1) and control rule are encircled (2), the outer cylinder sleeve (6) of installing of described central tube (9), install in the annular space that this cylinder sleeve (6) and central tube (9) form, lower piston (4,5), described lower piston (5) is gone up and is connected cone (8), this cone (8) inner chamber is settled spring (7), its conical surface cooperates with slips (10) dovetail groove and links to each other, described upper piston (4) top is fixed by shear pin (3) and control rule rings (2), and the bottom connects cylinder sleeve (6).
2, anti-sticking hydraulic anchor according to claim 1 is characterized in that described central tube (9) top was provided with opening, and the bottom is provided with outer shoulder, and spring (7) lower end seat is shoulder upper end outside this.
3, anti-sticking hydraulic anchor according to claim 1 is characterized in that described cone (8) bottom is provided with interior shoulder, and shoulder is located mutually with the outer shoulder of central tube (9) in this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03253690 CN2648043Y (en) | 2003-09-26 | 2003-09-26 | Force anchor preventing blocking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03253690 CN2648043Y (en) | 2003-09-26 | 2003-09-26 | Force anchor preventing blocking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648043Y true CN2648043Y (en) | 2004-10-13 |
Family
ID=34328379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03253690 Expired - Fee Related CN2648043Y (en) | 2003-09-26 | 2003-09-26 | Force anchor preventing blocking water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648043Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2477781C1 (en) * | 2011-10-07 | 2013-03-20 | Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" | Hydraulic anchor |
| CN110439489A (en) * | 2019-09-18 | 2019-11-12 | 东营市元捷石油机械有限公司 | Fill the water anti-jack slips anchor |
| RU2743120C1 (en) * | 2020-07-13 | 2021-02-15 | Общество с ограниченной ответственностью "Научно-производственное предприятие "СибБурМаш" | Borehole anchor |
-
2003
- 2003-09-26 CN CN 03253690 patent/CN2648043Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2477781C1 (en) * | 2011-10-07 | 2013-03-20 | Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" | Hydraulic anchor |
| CN110439489A (en) * | 2019-09-18 | 2019-11-12 | 东营市元捷石油机械有限公司 | Fill the water anti-jack slips anchor |
| RU2743120C1 (en) * | 2020-07-13 | 2021-02-15 | Общество с ограниченной ответственностью "Научно-производственное предприятие "СибБурМаш" | Borehole anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |