CN109915045B - Rotary sealing process and device for oil distribution of hydraulic control pipeline of minor repair well - Google Patents
Rotary sealing process and device for oil distribution of hydraulic control pipeline of minor repair well Download PDFInfo
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- CN109915045B CN109915045B CN201711327323.1A CN201711327323A CN109915045B CN 109915045 B CN109915045 B CN 109915045B CN 201711327323 A CN201711327323 A CN 201711327323A CN 109915045 B CN109915045 B CN 109915045B
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Abstract
The invention discloses a hydraulic control pipeline oil distribution rotary sealing process and a hydraulic control pipeline oil distribution rotary sealing device for a minor repair well, wherein the device comprises a rotary central body and an outer shell, the rotary central body is arranged in the outer shell and rotates relative to the outer shell, the rotary central body is provided with a hydraulic oil temporary storage cavity, and the outer shell is provided with an oil inlet and an oil return port of hydraulic oil; the rotating central body and the outer body are in a sealed state. And a bearing is arranged between the rotating central body and the outer shell, and the rotating central body and the outer shell rotate relatively through the bearing. A combined rotary seal is disposed between the rotary central body and the outer housing. The hydraulic control clamping and rotating tripping device is matched with a cross beam pipe clamping device and a loading hydraulic cylinder to realize hydraulic control clamping and rotating tripping operation of a pipe column. The problem that the pipe clamp cannot rotate due to the limitation of the pipeline is avoided.
Description
Technical Field
The invention relates to oil field construction operation equipment, in particular to a minor repair operation well hydraulic control pipeline oil distribution rotary sealing process and device.
Background
When the conventional maintenance operation is carried out in an oil field, due to the geological and technological requirements, the drilling plug, the sleeve milling and the salvaging construction are required, the drilling plug, the sleeve milling and the salvaging process are implemented to require that the tubular column is sealed to rotate and loaded to be lifted, particularly, a well with pressure at the bottom of the well, the annular space of an oil sleeve needs to be sealed in a rotating mode in the drilling plug process, and a clamping device is needed to clamp the tubular column to overcome the upper jacking force in the well to move in a rotating mode.
The pipe column under-pressure lifting operation is usually realized by adopting a cross beam type pipe clamping device on under-pressure operation equipment, but the device adopts a hydraulic control system to clamp the pipe column to move up and down, and a hydraulic control pipeline cannot rotate during operation, so that the cross beam type pipe clamping device cannot rotate to lift down.
Similar technologies are not found through searching keywords such as hydraulic control pipelines and rotary seals.
Disclosure of Invention
The invention aims to provide a hydraulic control pipeline oil distribution rotary sealing process and device for a minor repair operation well, which are matched with a cross beam pipe clamping device and a loading hydraulic cylinder to realize hydraulic control clamping rotary tripping operation of a pipe column.
In order to achieve the purpose, the invention adopts the following technical scheme that the hydraulic control pipeline oil distribution rotary sealing device for the small repair operation well comprises a rotary central body and an outer shell, wherein the rotary central body is arranged in the outer shell and rotates relative to the outer shell, and the rotary central body is provided with a hydraulic pipeline; the rotating central body and the outer body are in a sealed state.
And a bearing is arranged between the rotating central body and the outer body, and the rotating central body and the outer body rotate relatively through the bearing.
The bearing comprises a first bearing, a second bearing and a third bearing, wherein the second bearing is arranged between the outer wall of the circumference of the rotating central body and the inner wall of the outer shell, the upper end of the rotating central body is provided with an outward expansion edge, the first bearing is arranged between the lower end surface of the outward expansion edge and the outer shell, the inner wall of the outer shell is provided with an inclined expanding step, and the third bearing is arranged between the inclined expanding step and the rotating central body.
A combined rotary seal is disposed between the rotary central body and the outer housing.
And a bearing pressing cap is arranged below the third bearing, and an O-shaped ring is arranged on the outer wall of the bearing pressing cap.
The outer shell is provided with a hydraulic oil inlet and an oil return port; the rotary central body is provided with a cavity which is a temporary storage cavity of hydraulic oil, the temporary storage cavity is communicated with a hydraulic pipeline of the cross beam pipe clamping device, and the temporary storage cavity is also communicated with a hydraulic oil inlet and an oil return port.
The outer shell is connected with the base through a bolt and is fixed; the center of the rotating central body is a central cavity, a pipe column is installed in the central cavity, and the rotating central body and the pipe column rotate together.
In order to achieve the purpose, the invention adopts the following technical scheme that in the minor repair operation well hydraulic control pipeline oil distribution rotary sealing process, a hydraulic oil temporary storage cavity is arranged in the rotary center body and is connected with a hydraulic source through an oil inlet and an oil return port on the outer shell, and the outer shell is connected with other components through bolts and is fixed; the rotary central body is connected with the outer shell through a bearing and can rotate along with the pipe column, and meanwhile, hydraulic oil is lifted to a hydraulic pipeline of the pipe clamping device in a rotary mode, so that normal work of the pipe clamping device is guaranteed.
Compared with the prior art, the invention has the following beneficial effects:
the rotating central body is connected with the outer shell through the first bearing, the second bearing and the third bearing and can rotate along with the pipe column, and meanwhile, hydraulic oil is lifted to a hydraulic pipeline of the pipe clamping device in a rotating mode, and normal work of the pipe clamping device is guaranteed. The hydraulic oil temporary storage cavity is arranged in the rotating center body, so that the rotating seal of the hydraulic oil hole is realized. The problem that the pipe clamp cannot rotate due to the limitation of the pipeline is avoided. The rotary central body and the combined rotary sealing element are used for conveying hydraulic oil into a hydraulic pipeline of the upper cross beam pipe clamping device in a rotary mode, and therefore rotary lifting operation of the pipe clamping device is achieved.
Drawings
Fig. 1 is a schematic structural view of a hydraulic control pipeline oil distribution rotary sealing device of a minor repair operation well.
In the figure: the hydraulic oil-filling device comprises a rotary central body 1, a first bearing 2, a second bearing 3, a combined rotary sealing element 4, a third bearing 5, a bearing pressing cap 6, a bearing pressing cap 7, an outer shell 7, an O-shaped ring 8, a temporary storage cavity 9, a hydraulic pipeline 10, a hydraulic oil inlet 11 and a hydraulic oil return port 12.
Detailed Description
The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings, which are, however, for reference and illustration purposes only and are not intended to limit the present invention.
As shown in fig. 1, the hydraulic control pipeline oil distribution rotary sealing device for the minor repair well comprises a rotary central body 1 and an outer body 7, wherein the rotary central body is arranged in the outer body and rotates relative to the outer body, the rotary central body is provided with a hydraulic oil temporary storage cavity 9, and the outer body is provided with a hydraulic oil inlet 11 and an oil return port 12; the rotating central body and the outer body are in a sealed state.
And a bearing is arranged between the rotating central body and the outer body, and the rotating central body and the outer body rotate relatively through the bearing.
The bearing comprises a first bearing 2, a second bearing 3 and a third bearing 5, wherein the second bearing is arranged between the circumferential outer wall of the rotating central body and the inner wall of the outer shell, the upper end of the rotating central body is provided with an outward expansion edge, the first bearing is arranged between the lower end surface of the outward expansion edge and the outer shell, the inner wall of the outer shell is provided with an expanding oblique step, and the third bearing is arranged between the expanding oblique step and the rotating central body.
A combined rotary seal 4 is arranged between the rotary central body and the outer body.
And a bearing pressing cap 6 is arranged below the third bearing, and an o-shaped ring 8 is arranged on the outer wall of the bearing pressing cap.
The outer shell is connected with the base through a bolt and is fixed; the center of the rotating central body is a central cavity, a pipe column is installed in the central cavity, and the rotating central body and the pipe column rotate together.
A hydraulic oil temporary storage cavity 9 is formed in the rotating center body, a hydraulic source is connected with an oil return port 12 through an oil inlet 11 on the outer shell, and the outer shell is connected with other parts through bolts and is fixed. The rotating central body is connected with the outer shell through the first bearing 2, the second bearing 3 and the third bearing 5, can rotate along with the pipe column, and simultaneously lifts hydraulic oil to a hydraulic pipeline 10 of the pipe clamping device in a rotating mode, so that normal work of the pipe clamping device is guaranteed. The hydraulic pipeline is arranged in the rotating central body, so that the problem that the pipe clamp cannot rotate due to the limitation of the pipeline is solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention.
Claims (1)
1. The hydraulic control pipeline oil distribution rotary sealing device for the minor repair operation well is characterized by comprising a rotary central body and an outer body, wherein the rotary central body is arranged in the outer body and rotates relative to the outer body, and the rotary central body is provided with a hydraulic pipeline; a combined rotary sealing element is arranged between the rotary central body and the outer shell and is in a sealing state;
a bearing is arranged between the rotating central body and the outer shell, and the rotating central body and the outer shell rotate relatively through the bearing; the bearing comprises a first bearing, a second bearing and a third bearing, the second bearing is arranged between the circumferential outer wall of the rotating central body and the inner wall of the outer shell, the upper end of the rotating central body is provided with an outward expansion edge, the first bearing is arranged between the lower end surface of the outward expansion edge and the outer shell, the inner wall of the outer shell is provided with an expanding inclined step, and the third bearing is arranged between the expanding inclined step and the rotating central body; a bearing pressing cap is arranged below the third bearing, and an O-shaped ring is arranged on the outer wall of the bearing pressing cap; the outer shell is provided with a hydraulic oil inlet and an oil return port; the rotary central body is provided with a cavity which is a temporary storage cavity of hydraulic oil, the temporary storage cavity is communicated with a hydraulic pipeline of the cross beam pipe clamping device, and the temporary storage cavity is also communicated with a hydraulic oil inlet and an oil return port; the outer shell is connected with the base through a bolt and is fixed; the center of the rotating central body is a central cavity, a pipe column is arranged in the central cavity, and the rotating central body and the pipe column rotate together;
a hydraulic oil temporary storage cavity is arranged in the rotating center body, and is connected with a hydraulic source through an oil inlet and an oil return port on the outer shell, and the outer shell is connected with the base through a bolt and is fixed; the rotary central body is connected with the outer shell through a bearing and can rotate along with the pipe column, and meanwhile, hydraulic oil is lifted to a hydraulic pipeline of the pipe clamping device in a rotary mode, so that normal work of the pipe clamping device is guaranteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327323.1A CN109915045B (en) | 2017-12-13 | 2017-12-13 | Rotary sealing process and device for oil distribution of hydraulic control pipeline of minor repair well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327323.1A CN109915045B (en) | 2017-12-13 | 2017-12-13 | Rotary sealing process and device for oil distribution of hydraulic control pipeline of minor repair well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109915045A CN109915045A (en) | 2019-06-21 |
| CN109915045B true CN109915045B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711327323.1A Active CN109915045B (en) | 2017-12-13 | 2017-12-13 | Rotary sealing process and device for oil distribution of hydraulic control pipeline of minor repair well |
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| CN (1) | CN109915045B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713127Y (en) * | 2004-05-20 | 2005-07-27 | 中国石化胜利油田有限公司桩西采油厂 | Hydraulic totally-enclosing well plugger for minor repair well |
| CN202284459U (en) * | 2011-05-12 | 2012-06-27 | 中国石油化工集团公司 | Rotary sealing device for wellhead of oil well |
| CN204371150U (en) * | 2015-01-10 | 2015-06-03 | 陈文高 | A kind of hydraulic rotating pipe clamping device |
| CN206503583U (en) * | 2017-02-23 | 2017-09-19 | 中石化石油工程技术服务有限公司 | The high-pressure sealed plug that bores uses anti-ejection device |
-
2017
- 2017-12-13 CN CN201711327323.1A patent/CN109915045B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713127Y (en) * | 2004-05-20 | 2005-07-27 | 中国石化胜利油田有限公司桩西采油厂 | Hydraulic totally-enclosing well plugger for minor repair well |
| CN202284459U (en) * | 2011-05-12 | 2012-06-27 | 中国石油化工集团公司 | Rotary sealing device for wellhead of oil well |
| CN204371150U (en) * | 2015-01-10 | 2015-06-03 | 陈文高 | A kind of hydraulic rotating pipe clamping device |
| CN206503583U (en) * | 2017-02-23 | 2017-09-19 | 中石化石油工程技术服务有限公司 | The high-pressure sealed plug that bores uses anti-ejection device |
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| Publication number | Publication date |
|---|---|
| CN109915045A (en) | 2019-06-21 |
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