Rolling shaping mechanism and casing shaping tool

A rolling and casing technology, applied in wellbore/well components, earth-moving drilling, etc., can solve the problems of small amount of shaping and only single-stage shaping.

Active Publication Date: 2021-06-22
DAQING DONGYOU DRILLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a rolling shaping mechanism and a casing shaping tool to solve the problem that the existing shaper has a small amount of shaping in a single downhole, that is, it can only perform single-stage shaping

Method used

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  • Rolling shaping mechanism and casing shaping tool
  • Rolling shaping mechanism and casing shaping tool
  • Rolling shaping mechanism and casing shaping tool

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Embodiment Construction

[0066] The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. However, the present invention can be fully understood by those skilled in the art about the parts that are not described in detail.

[0067] In addition, those of ordinary skill in the art should understand that the provided drawings are only for illustrating the objects, features and advantages of the present invention, and the drawings are not actually drawn to scale.

[0068] At the same time, unless the context clearly requires, the words "include", "include" and other similar words in the entire specification and claims should be interpreted as an inclusive meaning rather than an exclusive or exhaustive meaning; that is, "include but not limited to the meaning of ".

[0069] The casing shaping tool of the present e...

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PUM

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Abstract

The invention discloses a rolling shaping mechanism and a casing shaping tool. The rolling shaping mechanism comprises a shaping ball (13) and a moving grooved rail (63), wherein the shaping ball (13) stretches and retracts in the radial direction while moving along the moving grooved rail (63) so as to apply radial shaping pressure to a deformed part of a casing. The rolling shaping mechanism is characterized in that a base body of the moving grooved rail (63) is a cone, so that the radial stretching and retracting length of the shaping ball (13) changes in multiple stages in the axial direction; and the multiple stages of changes are used for shaping the casing in multiple stages; the casing shaping tool comprises the rolling shaping mechanism. The problem that an existing shaper is small in shaping amount when going down to a well once, namely, only single-stage shaping can be conducted is solved.

Description

technical field [0001] The invention relates to a shaping tool, in particular to a repairing tool for implementing ball shaping for casing deformation. Background technique [0002] The casing shaper whose patent number is ZL202011204145.5 still has some problems in actual use. Among them, because the overall shape and structure of the shaping component is cylindrical, the shaping amount of the casing with the corresponding pipe diameter is limited, that is, if the casing with large radial deformation has a small amount of single shaping, During the operation, it is necessary to frequently lift and lower the pipe string to replace the shapers of different specifications, which increases the operation time and increases the operation cost. [0003] In addition, the rotary shaping jacket needs to rely on the front two-way thrust bearing to realize the rotation movement. In actual operation, the structure of the two-way thrust bearing is easily mixed with particles and impurit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B29/10
CPCE21B29/10
Inventor 罗敏金传杰张佳贺陈淑艳李泓霏林志强
Owner DAQING DONGYOU DRILLING CO LTD
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