CN210013677U - Oil-water well downhole pipe column righting device - Google Patents
Oil-water well downhole pipe column righting device Download PDFInfo
- Publication number
- CN210013677U CN210013677U CN201920365687.7U CN201920365687U CN210013677U CN 210013677 U CN210013677 U CN 210013677U CN 201920365687 U CN201920365687 U CN 201920365687U CN 210013677 U CN210013677 U CN 210013677U
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- China
- Prior art keywords
- pipe column
- centralizing
- oil
- righting
- underground
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- Expired - Fee Related
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Abstract
The utility model relates to an oil-water well tubular column righting device in pit is the device placed in the middle of oil pipe or all kinds of downhole tool in the sleeve pipe that can make in the tubular column in the pit. The device comprises a centralizing body, wherein one end of a body is a lower joint, the other end of the body is connected with an upper joint, a limiting table is arranged on the body at one end of the lower joint, and the centralizing body is arranged outside the body between the limiting table and the upper joint and can freely rotate on the body; the underground pipe column centralizing device is connected in an underground pipe column. The impact of the pipe column to the righting device can be avoided, the collision of the underground pipe column to the righting device in the lifting process is obviously reduced, the underground pipe column cannot be damaged in the underground process, and the underground pipe column can play a normal righting role in the construction or construction process. Effectively prolongs the service life of the underground pipe column and various underground tools in the pipe column, ensures the quality of subsequent construction, prolongs the well repairing period and effectively reduces the production cost.
Description
Technical Field
The utility model relates to a righting instrument of oil industry tubular column in pit, especially a device is right to oil-water well tubular column in pit is the device placed in the middle of oil pipe or all kinds of downhole tool in the sleeve pipe that can make in the tubular column in the pit.
Background
The existing centralizing device adopted in the oil-water well underground pipe column of the oil field is simple in design, needs to be arranged on the outer wall or the body of an oil pipe or various underground tools, and is matched with the oil pipe or various underground tools to be used in the underground process. Because the lengths of the bodies of the oil pipes in the underground pipe column or various underground tools are different, the length of the oil pipes is generally 9.5m, the length of various underground tools is generally 3-5m, and the centralizing device is arranged on the outer wall or the body of the oil pipe or the underground tool and can have a larger reciprocating movement distance. In the process of going into the well, the centralizing device is rubbed by the casing wall to do reciprocating motion, the stroke of the centralizing device is large, the centralizing device is easy to damage due to collision, and the normal centralizing effect cannot be exerted. The above problems need to be solved in order to protect tubing and downhole tools in a downhole string from eccentric wear.
Disclosure of Invention
The utility model aims at providing an oil-water well tubular column righting device in pit reduces tubular column in the pit and is having played the effect of righting in construction or work progress to colliding with that the righting device of higher authority cause of in-process down, makes the righting device can play the effect of righting in construction or work progress, improves and rights the effect, and the various harm that the protection downhole tool avoided the eccentric wear to cause provides convenience, reduction in production cost for follow-up construction.
The technical solution of the utility model is that:
a downhole tubular column righting device for an oil-water well comprises a righting body, wherein one end of a body is a lower joint, the other end of the body is connected with an upper joint, a limiting table is arranged on the body at one end of the lower joint, and the righting body is arranged outside the body between the limiting table and the upper joint and can freely rotate on the body; the underground pipe column centralizing device is connected in an underground pipe column.
The outer diameter of the limiting table is larger than the inner diameter of the righting body and smaller than the maximum outer diameter of the righting body; the outer diameter of the upper joint is larger than the inner diameter of the centralizing body and smaller than the maximum outer diameter of the centralizing body.
After the centralizing body is installed in the body, the distance between the two ends of the centralizing body and the limiting table or the upper joint is set to be 2-4 cm; the centralizer is formed with an outer diameter less than the inner diameter of the casing.
The lower joint and the upper joint are respectively connected between an oil pipe and an oil pipe of the oil-water well downhole pipe column, between the oil pipe and a downhole tool or between the downhole tool and the downhole tool through external threads and internal threads.
The oil-water well downhole string centering device is connected in the oil-water well downhole string at intervals of 20 m.
Compared with the prior art, the utility model discloses a show the result of use and be: this tubular column righting device in pit connects in the tubular column in the pit, rather than installing on the outer wall of tubular column in the pit, and the body of righting can free rotation in the body, owing to have spacing platform and the stopping of top connection, the distance of its activity from top to bottom also is about 3 cm. The impact of the string to the righting device is avoided, the collision of the underground string to the righting device in the pulling-out process is obviously reduced, the underground string cannot be damaged in the descending process, and the underground string can play a normal righting role in the construction or construction process. The righting device is intact, the righting effect is obviously improved, the friction damage between the underground pipe column and various underground tools and the well wall is avoided, the protection effect on the underground pipe column and various tools connected in the pipe column is improved, the service life of various underground tools in the underground pipe column and the pipe column is effectively prolonged, the quality of subsequent construction is ensured, the well repairing period is prolonged, and the production cost is effectively reduced.
The utility model discloses an on-the-spot experiment proves, has apparent result of use and can gain obvious economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the present invention, taken in conjunction with the accompanying drawings, is not intended to limit the scope of the invention. It is only following do the preferred embodiment of the utility model, other applications the utility model discloses an equivalent change all should belong to the utility model discloses a protection scope.
Referring to fig. 1, the underground pipe column centralizing device for the oil-water well comprises a centralizing body 3, and is characterized in that one end of a body 2 is a lower joint 5, the other end of the body is connected with an upper joint 1, a limiting table 4 is arranged on the body 2 at one end of the lower joint 5, and the centralizing body 3 is arranged outside the body 2 between the limiting table 4 and the upper joint 1 and can freely rotate on the body 2; the underground pipe column righting device is connected in an underground pipe column, so that impact and collision caused by the underground pipe column are avoided, and the underground pipe column righting device can play a righting role in the construction or construction process.
The outer diameter of the limiting table 4 is larger than the inner diameter of the righting body 3 and smaller than the maximum outer diameter of the righting body 3; the outer diameter of the upper joint 1 is larger than the inner diameter of the centralizing body 3 and smaller than the maximum outer diameter of the centralizing body 3.
After the centralizing body 3 is installed in the body 2, the distance between the two ends of the centralizing body and the limiting table 4 or the upper joint 1 is set to be 2 cm-4 cm; the centralizing body 3 forms an outer diameter smaller than the inner diameter of the casing.
The lower joint 5 and the upper joint 1 are respectively connected between an oil pipe and an oil pipe of the oil-water well downhole pipe column, between the oil pipe and a downhole tool or between the downhole tool and the downhole tool through external threads and internal threads.
The oil-water well downhole string centering device is connected in the oil-water well downhole string at intervals of 20 m.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.
Claims (5)
1. A downhole tubular column centralizing device for an oil-water well comprises a centralizing body and is characterized in that one end of a body is a lower joint, the other end of the body is connected with an upper joint, a limiting table is arranged on the body at one end of the lower joint, and the centralizing body is arranged outside the body between the limiting table and the upper joint and can freely rotate on the body; the underground pipe column centralizing device is connected in an underground pipe column.
2. The device as claimed in claim 1, wherein the outer diameter of the limit table is larger than the inner diameter of the centralizing body and smaller than the maximum outer diameter of the centralizing body; the outer diameter of the upper joint is larger than the inner diameter of the centralizing body and smaller than the maximum outer diameter of the centralizing body.
3. The device for righting the tubular column of an oil-water well as defined in claim 1 or 2, wherein the distance between the two ends of the righting body and the limit platform or the upper joint is set between 2cm and 4cm after the righting body is installed in the body; the centralizer is formed with an outer diameter less than the inner diameter of the casing.
4. The centralizer of claim 3, wherein the lower joint and the upper joint are connected between the tubing of the oil-water well tubular string, between the tubing and the downhole tool, or between the downhole tool and the downhole tool through the external thread and the internal thread, respectively.
5. The device as claimed in claim 4, wherein the device is connected every 20m in the tubular column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365687.7U CN210013677U (en) | 2019-03-21 | 2019-03-21 | Oil-water well downhole pipe column righting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365687.7U CN210013677U (en) | 2019-03-21 | 2019-03-21 | Oil-water well downhole pipe column righting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210013677U true CN210013677U (en) | 2020-02-04 |
Family
ID=69313748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920365687.7U Expired - Fee Related CN210013677U (en) | 2019-03-21 | 2019-03-21 | Oil-water well downhole pipe column righting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210013677U (en) |
-
2019
- 2019-03-21 CN CN201920365687.7U patent/CN210013677U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200204 Termination date: 20210321 |