CN211008521U - Bypass valve - Google Patents
Bypass valve Download PDFInfo
- Publication number
- CN211008521U CN211008521U CN201921652919.3U CN201921652919U CN211008521U CN 211008521 U CN211008521 U CN 211008521U CN 201921652919 U CN201921652919 U CN 201921652919U CN 211008521 U CN211008521 U CN 211008521U
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- China
- Prior art keywords
- bypass valve
- sliding sleeve
- valve body
- bypass
- steel ball
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Abstract
The utility model relates to a bypass valve mainly includes bypass valve body, steel ball, sliding sleeve, jackscrew, arrow round pin, sealing member and sealing member top helicla flute. The bypass valve through the improvement to sealing member top helicla flute structure for the bypass valve has good lubricated effect, thereby makes the life-span of bypass valve prolong greatly, availability factor is showing and is promoting.
Description
Technical Field
The utility model relates to a valving relates to a bypass valve particularly.
Background
The bypass valve is a backup relief valve in the drill string circulation system. When the well is overflowed and the water hole of the drill bit is blocked and the well can not be killed, the bypass valve is opened to recover the normal circulation of the drilling fluid and prevent blowout or poor pump. In the prior art at present, the structural relationship between the steel ball and the sliding sleeve in the bypass valve is not well processed, so that the friction between the steel ball and the sliding sleeve is large, and the service life of the bypass valve is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient convenient bypass valve.
In order to solve the technical problem, the purpose of the utility model is realized through following technical scheme:
the bypass valve mainly comprises a bypass valve body, a steel ball, a sliding sleeve, a jackscrew, an arrow pin, a sealing element and a spiral groove at the top of the sealing element;
the steel ball, the sliding sleeve and the sealing element are arranged inside the bypass valve body, the steel ball is arranged at the inner left end of the bypass valve body, the right end of the steel ball is provided with the sliding sleeve, the sealing element is arranged between the bypass valve body and the sliding sleeve, a bypass port is formed in the bypass valve body, a bypass hole and a positioning pin are arranged in the corresponding position of the sliding sleeve, a jackscrew is arranged between the bypass valve body and the sliding sleeve, the arrow pin is located on the bypass valve body and fixed with the jackscrew through threads, the steel ball is matched with the top of the sliding sleeve, and a sealing element top spiral groove is formed in the top of the.
The sliding sleeve can rotate along the axial direction, the bypass hole in the sliding sleeve is communicated with the bypass port in the bypass valve body, and fluid bypasses.
And the positioning limitation of the jackscrew is removed, and then the sliding sleeve is rotated, so that the bypass hole in the sliding sleeve is communicated with the bypass port in the bypass valve body, and the fluid can be bypassed.
The bypass valve body and the sliding sleeve are positioned through jackscrews.
The spiral groove at the top of the sealing element can facilitate the rotation of the sliding sleeve, so that the lubricating effect is enhanced.
The bypass valve, be suitable for and meet easily collapse, easily leak, easily spout stratum such as, need carry out the kill-job boring, when the leaking stoppage operation takes place the dangerous condition, can pass through the bypass hole resume normal circulation, prevent that the condition in the pit from more worsening.
When the water hole is plugged, mud can be discharged through the bypass hole, so that the pollution of a drilling platform and the pressure drop of the underground liquid column caused by pumping and the reduction of the mud in the well are reduced, and particularly, when the water hole enters an oil-gas layer, the blowout caused by the pressure drop of the underground liquid column can be avoided.
The jet drilling can be carried out in a complex well section without prying a nozzle, so that the drilling speed is improved, and once a sign of water plugging is given, the bypass valve can be opened immediately to recover normal circulation, so that the pump is prevented from being deteriorated.
The beneficial effects of the utility model reside in that:
the bypass valve through the improvement to sealing member top helicla flute structure for the bypass valve has good lubricated effect, thereby makes the life-span of bypass valve prolong greatly, availability factor is showing and is promoting.
Drawings
FIG. 1 is a schematic view of the bypass valve configuration;
FIG. 2 is a schematic view of a steel ball;
FIG. 3 is a schematic view of the top structure of the sliding sleeve.
Detailed Description
The present invention will be described in further detail below: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
As shown in the figure, the bypass valve mainly comprises a bypass valve body 1, a steel ball 2, a sliding sleeve 3, a jackscrew 4, an arrow pin 5, a sealing element 6 and a sealing element top spiral groove 7;
The sliding sleeve 3 can rotate along the axial direction, the bypass hole on the sliding sleeve 3 is communicated with the bypass port on the bypass valve body 1, and fluid is bypassed.
The positioning limitation of the jackscrew 4 is removed, and then the sliding sleeve 3 is rotated, so that the bypass hole on the sliding sleeve 3 is communicated with the bypass port on the bypass valve body 1, and the fluid can be bypassed.
The bypass valve body 1 and the sliding sleeve 3 are positioned through a jackscrew 4.
The spiral groove 7 at the top of the sealing element can facilitate the rotation of the sliding sleeve 3, thereby enhancing the lubricating effect.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. A bypass valve characterized by:
the bypass valve mainly comprises a bypass valve body (1), a steel ball (2), a sliding sleeve (3), a jackscrew (4), an arrow pin (5), a sealing element (6) and a spiral groove (7) at the top of the sealing element;
steel ball (2), sliding sleeve (3), sealing member (6) set up the inside at bypass valve body (1), steel ball (2) set up the inside left end at bypass valve body (1), the right-hand member of steel ball (2) is provided with sliding sleeve (3), sealing member (6) set up between bypass valve body (1) and sliding sleeve (3), be equipped with the by-pass mouth on bypass valve body (1) be equipped with bypass hole and locating pin on the department of correspondence of sliding sleeve (3), jackscrew (4) set up between bypass valve body (1) and sliding sleeve (3), arrow pin (5) are located bypass valve body (1), and it is fixed with jackscrew (4) through the screw thread, steel ball (2) and the top of sliding sleeve (3) mutually support, and the top of sliding sleeve (3) is equipped with sealing member top helicla flute (7).
2. The bypass valve as recited in claim 1 wherein:
the sliding sleeve (3) can rotate along the axial direction, the bypass hole in the sliding sleeve (3) is communicated with the bypass port in the bypass valve body (1), and fluid is bypassed.
3. The bypass valve as recited in claim 1 wherein:
the bypass valve body (1) and the sliding sleeve (3) are positioned through a jackscrew (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652919.3U CN211008521U (en) | 2019-09-30 | 2019-09-30 | Bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652919.3U CN211008521U (en) | 2019-09-30 | 2019-09-30 | Bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008521U true CN211008521U (en) | 2020-07-14 |
Family
ID=71507311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921652919.3U Active CN211008521U (en) | 2019-09-30 | 2019-09-30 | Bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211008521U (en) |
-
2019
- 2019-09-30 CN CN201921652919.3U patent/CN211008521U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |