CN215761588U - Annular strong-magnetic multifunctional fisher - Google Patents
Annular strong-magnetic multifunctional fisher Download PDFInfo
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- CN215761588U CN215761588U CN202121365284.6U CN202121365284U CN215761588U CN 215761588 U CN215761588 U CN 215761588U CN 202121365284 U CN202121365284 U CN 202121365284U CN 215761588 U CN215761588 U CN 215761588U
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Abstract
The utility model relates to the technical field of oilfield salvage equipment, in particular to an annular strong-magnetic multifunctional fisher. The upper end of a mandrel of the device is provided with an upper joint, and the lower end of the mandrel is provided with a lower joint; the outer wall of the upper end of the mandrel is connected with an upper righting sleeve, the lower end of the upper righting sleeve is provided with an annular magnetic sleeve body, the annular magnetic sleeve body is sleeved on the mandrel, the lower end of the annular magnetic sleeve body is limited by a stop block, the stop block is fixed on the mandrel, the outer wall of the lower portion of the mandrel is connected with a salvaging cup body, the lower end of the salvaging cup body is provided with a lower righting sleeve, and the lower righting sleeve is connected on the outer wall of the lower end of the mandrel. The utility model realizes that ferromagnetic sundries and nonmagnetic sundries can be salvaged in the process of salvage operation, ensures the cleanness of the inner wall of the casing pipe and is beneficial to the normal operation of the required drilling tool.
Description
The technical field is as follows:
the utility model relates to the technical field of oilfield salvage equipment, in particular to an annular strong-magnetic multifunctional fisher.
Background art:
a large amount of impurities are generated in the well completion, test and well washing operation of the oil field, wherein the slurry contains a large amount of ferromagnetic impurities, which is not beneficial to the normal operation of a drilling tool. The existing fishing tools are generally difficult to salvage ferromagnetic impurities in the slurry, which has adverse effects on subsequent downhole operations.
The utility model has the following contents:
the utility model aims to solve the technical problem of providing an annular strong-magnetic multifunctional fisher which can salvage ferromagnetic sundries and nonmagnetic sundries in the fishing operation process, ensure the cleanness of the inner wall of a casing and facilitate the normal operation of a required drilling tool. Overcomes the defect that the existing fishing tool is difficult to salvage ferromagnetic impurities in the slurry.
The technical scheme adopted by the utility model is as follows: an annular strong-magnetic multifunctional fisher comprises a mandrel, wherein an upper connector is arranged at the upper end of the mandrel, and a lower connector is arranged at the lower end of the mandrel; the outer wall of the upper end of the mandrel is connected with an upper righting sleeve, the lower end of the upper righting sleeve is provided with an annular magnetic sleeve body, the annular magnetic sleeve body is sleeved on the mandrel, the lower end of the annular magnetic sleeve body is limited by a stop block, the stop block is fixed on the mandrel, the outer wall of the lower portion of the mandrel is connected with a salvaging cup body, the lower end of the salvaging cup body is provided with a lower righting sleeve, and the lower righting sleeve is connected on the outer wall of the lower end of the mandrel.
The upper righting sleeve is connected to the outer wall of the upper end of the mandrel through threads.
The lower righting sleeve is connected to the outer wall of the lower end of the mandrel through threads.
The stop block is fixed on the mandrel through a screw.
The salvaging cup body is connected on the outer wall of the mandrel through threads.
The utility model has the beneficial effects that: the utility model realizes that ferromagnetic sundries and nonmagnetic sundries can be salvaged in the process of salvage operation, ensures the cleanness of the inner wall of the casing pipe and is beneficial to the normal operation of the required drilling tool.
Description of the drawings:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1, the annular strong-magnetic multifunctional fisher comprises a mandrel 1, wherein an upper joint is arranged at the upper end of the mandrel 1, and a lower joint 8 is arranged at the lower end of the mandrel 1; the outer wall of the upper end of the mandrel 1 is connected with an upper righting sleeve 2, the lower end of the upper righting sleeve 2 is provided with an annular magnetic sleeve body 3, the annular magnetic sleeve body 3 is sleeved on the mandrel 1, the lower end of the annular magnetic sleeve body 3 is limited by a stop block 4, the stop block 4 is fixed on the mandrel 1, the outer wall of the lower portion of the mandrel 1 is connected with a salvaging cup body 6, the lower end of the salvaging cup body 6 is provided with a lower righting sleeve 7, and the lower righting sleeve 7 is connected on the outer wall of the lower end of the mandrel 1.
The upper righting sleeve 2 is connected to the outer wall of the upper end of the mandrel 1 through threads.
The lower righting sleeve 7 is connected to the outer wall of the lower end of the mandrel 1 through threads.
The stop 4 is fixed on the mandrel 1 by a screw 5.
The salvaging cup body 6 is connected on the outer wall of the mandrel 1 through threads.
When the annular magnetic sleeve is used, the annular magnetic sleeve is usually connected to a drill collar and is put down into a well along with a pipe string, when well flushing operation is needed, non-ferromagnetic impurities which cannot be recovered in slurry are recovered through the salvaging cup body 6 on the annular magnetic sleeve, ferromagnetic impurities are recovered through the annular magnetic sleeve body 3, the slurry is circulated for multiple times until well flushing is completed, and then the annular magnetic sleeve is put forward, and impurities on the surface of the annular magnetic sleeve body 3 are cleaned by clear water, so that the annular magnetic sleeve is convenient to use next time.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (5)
1. An annular strong-magnetic multifunctional fisher comprises a mandrel (1), wherein an upper joint is arranged at the upper end of the mandrel (1), and a lower joint (8) is arranged at the lower end of the mandrel (1); the method is characterized in that: the outer wall of the upper end of the mandrel (1) is connected with the upper centering sleeve (2), the lower end of the upper centering sleeve (2) is provided with an annular magnetic sleeve body (3), the annular magnetic sleeve body (3) is sleeved on the mandrel (1), the lower end of the annular magnetic sleeve body (3) is limited by a stop block (4), the stop block (4) is fixed on the mandrel (1), the outer wall of the lower part of the mandrel (1) is connected with a salvaging cup body (6), the lower end of the salvaging cup body (6) is provided with a lower centering sleeve (7), and the lower centering sleeve (7) is connected on the outer wall of the lower end of the mandrel (1).
2. The annular strong magnetic multifunctional fisher according to claim 1, which is characterized in that: the upper centering sleeve (2) is connected to the outer wall of the upper end of the mandrel (1) through threads.
3. The annular strong magnetic multifunctional fisher according to claim 1, which is characterized in that: the lower righting sleeve (7) is connected to the outer wall of the lower end of the mandrel (1) through threads.
4. The annular strong magnetic multifunctional fisher according to claim 1, which is characterized in that: the stop block (4) is fixed on the mandrel (1) through a screw (5).
5. The annular strong magnetic multifunctional fisher according to claim 1, which is characterized in that: the salvaging cup body (6) is connected to the outer wall of the mandrel (1) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121365284.6U CN215761588U (en) | 2021-06-19 | 2021-06-19 | Annular strong-magnetic multifunctional fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121365284.6U CN215761588U (en) | 2021-06-19 | 2021-06-19 | Annular strong-magnetic multifunctional fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761588U true CN215761588U (en) | 2022-02-08 |
Family
ID=80101522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121365284.6U Active CN215761588U (en) | 2021-06-19 | 2021-06-19 | Annular strong-magnetic multifunctional fisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761588U (en) |
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2021
- 2021-06-19 CN CN202121365284.6U patent/CN215761588U/en active Active
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