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Locking device for static offset rotation guiding underground rotating structure

A rotary steerable, static offset technology, applied in directional drilling and other directions, can solve problems affecting performance, limited survivability of the rotary steerable system, resistance of the rotary steerable device when going out of the well, etc., and achieve the effect of increasing survivability

Inactive Publication Date: 2020-11-24
万晓跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for drilling, when drilling, the rotary steerable device is prone to the problem of getting out of the well, which makes it difficult to go out of the well, so that the survivability of the rotary steerable system under complex downhole conditions is greatly restricted, affecting the performance

Method used

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  • Locking device for static offset rotation guiding underground rotating structure
  • Locking device for static offset rotation guiding underground rotating structure
  • Locking device for static offset rotation guiding underground rotating structure

Examples

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Embodiment Construction

[0025] see Figure 1~4 , in the embodiment of the present invention, the locking device of the static bias rotary steerable downhole rotary structure, the locking device of the static bias rotary steerable downhole rotary structure is characterized in that it includes a locking actuator and a driving mechanism, wherein the lock The closing executive mechanism is installed between the drive shaft and the non-rotating outer sleeve, so that the locked relative rotation state between the drive shaft and the non-rotating outer sleeve can be converted into a relatively rotatable state through the locking actuator, or the The relative rotation state is transformed into a locked and non-rotatable state;

[0026] The locking actuator is driven by the driving mechanism so as to control the switching of the state of the locking actuator. In this embodiment, a lower driving shaft 23 is connected to the lower part of the driving shaft 22 .

[0027] Wherein, the driving mechanism is drive...

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Abstract

The invention discloses a locking device for a static offset rotation guiding underground rotating structure. The device comprises a locking executing mechanism and a driving mechanism. The locking executing mechanism is arranged between a driving shaft and a non-rotating outer sleeve, so that the locking executing mechanism enables the driving shaft and the non-rotating outer sleeve to be converted from a locking non-relatively-rotating state to a relatively-rotating state or from the relatively-rotating state to the locking non-relatively-rotating state; and the locking executing mechanism is driven by the driving mechanism, and therefore the state of the locking executing mechanism can be switched and controlled. According to the locking device for the static offset rotation guiding underground rotating structure, when a rotation guiding device is blocked after coming out of a well, the underground environment is complex or the guiding function does not need to be executed, lockingcan be carried out in the locking mode, rotation guiding realizes full rotation, and the survival capacity of a rotation guiding system under the underground complex condition is increased.

Description

technical field [0001] The invention relates to the technical field of locking for downhole tools, in particular to a locking device for a static offset rotary steering downhole rotary structure. Background technique [0002] At present, for drilling, when drilling, the rotary steerable device is prone to the problem of blocking the well, which makes it difficult to go out of the well, which greatly limits the survivability of the rotary steerable system under complex downhole conditions and affects the performance. [0003] Therefore, the present invention provides a static offset rotary steerable downhole rotary structure locking device to solve the problems raised in the above-mentioned background technology. Contents of the invention [0004] The object of the present invention is to provide a locking device for a static offset rotary steerable downhole rotary structure, so as to solve the problems raised in the above-mentioned background technology. [0005] To achie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04
CPCE21B7/04
Inventor 徐梓辰
Owner 万晓跃
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