CN201347551Y - Full opening pre-stressing force cementing ground anchorage assembly - Google Patents
Full opening pre-stressing force cementing ground anchorage assembly Download PDFInfo
- Publication number
- CN201347551Y CN201347551Y CNU2009200022556U CN200920002255U CN201347551Y CN 201347551 Y CN201347551 Y CN 201347551Y CN U2009200022556 U CNU2009200022556 U CN U2009200022556U CN 200920002255 U CN200920002255 U CN 200920002255U CN 201347551 Y CN201347551 Y CN 201347551Y
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- China
- Prior art keywords
- main body
- fluid cylinder
- lower contact
- pin
- hydraulic cylinder
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- Expired - Lifetime
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Abstract
The utility model relates to a full opening pre-stressing force cementing ground anchorage assembly which is mainly composed of a main body (1), a pin (5), a linkage rod (7), a pin (8), a fluke (9), a pin (10) and a lower contact (11). The main body (1) shows a step shape, the down step suit hydraulic cylinder (4) and a shearing pin (2) fix the hydraulic cylinder (4) on the main body (1), the hydraulic cylinder (4) has an easy push fit with the main body (1), a sealing device is in between the hydraulic cylinder (4) and the main body (1); a part of the main body (1) located on near front end of the hydraulic cylinder position is opened with a pressure transmitting hole; the pin (5) makes the linkage rod (7) connect with the hydraulic cylinder (4), the connection is an active connection method; the lower contact (11) uses screw connection with the main body (1), the main body (1) has a same inner diameter with the lower contact (11).The full opening pre-stressing force cementing ground anchorage assembly has simple structure and concord inner diameter of a casing tube which has wide suitable casing tube range.
Description
Technical field
The utility model relates to the downhole tool that solid completion practice is used, and particularly is suitable for a kind of all-pass footpath special cementing earth anchor assembly that the thermal production well special cementing is used.
Background technology
The special cementing technology is a kind of cementing technology commonly used of thick oil thermal extraction, has obtained using widely in Xinjiang Oilfield in recent years.From applicable cases, this technology has obtained good effect, but now be used for the special cementing technology main tool---earth anchor can not bore, can only be used for production casing, can't realize the protective casing special cementing, its application has certain limitation.
Summary of the invention
The purpose of this utility model be to provide inner latus rectum size consistent, without any step, do not influence a kind of all-pass footpath special cementing earth anchor assembly that continues to creep in the bottom.
For achieving the above object, the technical scheme that the utility model provides is: mainly be made up of body, bearing pin, connecting rod, bearing pin, anchor fluke, bearing pin, lower contact, connecting rod is fixed with bearing pin and anchor fluke, bearing pin is fixed on anchor fluke in the lower contact, it is step-like that body is, its suit fluid cylinder of getting out of a predicament or an embarrassing situation, and shear pin is fixed on fluid cylinder on the body, for being slidingly matched, and between fluid cylinder and the body sealing device is arranged between fluid cylinder and the body; Body is positioned at the forward end in fluid cylinder position and has pressure transmission hole; Bearing pin is connected connecting rod with fluid cylinder, this is connected to movable connection method; Lower contact and body adopt screwed connection; The body internal diameter is identical with the lower contact internal diameter.Sealing device between body and the fluid cylinder is an O shape rubber seal.
The beneficial effects of the utility model are: simple in structure, this tool bore is consistent with casing inner diameter, both can be used for production string, can be used for protective casing again, is not subjected to condition restriction, can extensive use in the thermal production well special cementing.
Description of drawings
Fig. 1 the utility model structural representation.
Specific embodiments
The utility model is described in more detail below in conjunction with accompanying drawing.
The utility model mainly is made up of body 1, bearing pin 5, connecting rod 7, bearing pin 8, anchor fluke 9, bearing pin 10, lower contact 11, connecting rod 7 usefulness bearing pins 8 and anchor fluke 9 are fixing, bearing pin 10 is fixed on anchor fluke 9 in the lower contact 11, body 1 is step-like, its suit fluid cylinder 4 of getting out of a predicament or an embarrassing situation, shear pin 2 is fixed on fluid cylinder 4 on the body 1, for being slidingly matched, and between fluid cylinder 4 and the body 1 sealing device is arranged between fluid cylinder 4 and the body 1; Body 1 is positioned at the forward end in fluid cylinder position and has pressure transmission hole; Bearing pin 5 is connected connecting rod 7 with fluid cylinder 4, this is connected to movable connection method; Lower contact 11 is adopted screwed connection with body 1; Body 1 internal diameter is identical with lower contact 11 internal diameters.Sealing device between body 1 and the fluid cylinder 4 is O shape rubber seal 3 and O shape rubber seal 6.Body internal diameter and casing inner diameter dimensional requirement are consistent.
Operating principle of the present utility model: the utility model is connected to bunch tube, when the pipe string arrives the precalculated position down, build the pressure in bunch tube inside, when reaching certain pressure, cut off shear pin 2, and promotion fluid cylinder 4, fluid cylinder 4 promotes connecting rod 7 again and opens anchor fluke 9, and anchor fluke 9 embeds the stratum, lifts bunch tube at well head then, apply prestressing force, thereby realize special cementing.
Claims (2)
1. all-pass footpath special cementing earth anchor assembly, mainly by body (1), bearing pin (5), connecting rod (7), bearing pin (8), anchor fluke (9), bearing pin (10), lower contact (11) is formed, connecting rod (7) is fixing with bearing pin (8) and anchor fluke (9), bearing pin (10) is fixed on anchor fluke (9) in the lower contact (11), it is characterized in that: body (1) is step-like, its suit fluid cylinder (4) of getting out of a predicament or an embarrassing situation, shear pin (2) is fixed on fluid cylinder (4) on the body (1), for being slidingly matched, and between fluid cylinder (4) and the body (1) sealing device is arranged between fluid cylinder (4) and the body (1); Body (1) is positioned at the forward end in fluid cylinder position and has pressure transmission hole; Bearing pin (5) is connected connecting rod (7) with fluid cylinder (4), this is connected to movable connection method; Lower contact (11) is adopted screwed connection with body (1); Body (1) internal diameter is identical with lower contact (11) internal diameter.
2. a kind of all-pass according to claim 1 footpath special cementing earth anchor assembly, it is characterized in that: the sealing device between body (1) and the fluid cylinder (4) is O shape rubber seal (3) and O shape rubber seal (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200022556U CN201347551Y (en) | 2009-01-03 | 2009-01-03 | Full opening pre-stressing force cementing ground anchorage assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200022556U CN201347551Y (en) | 2009-01-03 | 2009-01-03 | Full opening pre-stressing force cementing ground anchorage assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347551Y true CN201347551Y (en) | 2009-11-18 |
Family
ID=41367023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200022556U Expired - Lifetime CN201347551Y (en) | 2009-01-03 | 2009-01-03 | Full opening pre-stressing force cementing ground anchorage assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347551Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604512A (en) * | 2016-03-14 | 2016-05-25 | 中国石油集团西部钻探工程有限公司 | Dual-row-type prestressed well cementation ground anchor assembly |
| CN110552658A (en) * | 2019-09-26 | 2019-12-10 | 西南石油大学 | Large-drift-diameter prestressed well cementation tool |
-
2009
- 2009-01-03 CN CNU2009200022556U patent/CN201347551Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604512A (en) * | 2016-03-14 | 2016-05-25 | 中国石油集团西部钻探工程有限公司 | Dual-row-type prestressed well cementation ground anchor assembly |
| CN110552658A (en) * | 2019-09-26 | 2019-12-10 | 西南石油大学 | Large-drift-diameter prestressed well cementation tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |
|
| CX01 | Expiry of patent term |