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Testing device for focusing bearing of directional rotary steering tool

A technology of rotary guidance and testing equipment, which is applied in the direction of mechanical bearing testing, etc., and can solve problems such as costing huge amounts of money

Active Publication Date: 2020-05-08
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no equipment in the prior art that can simulate the high stress environment in the well to test the focusing bearing. If the focusing bearing is directly placed on the drilling tool for testing, it will cost a huge amount of money

Method used

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  • Testing device for focusing bearing of directional rotary steering tool
  • Testing device for focusing bearing of directional rotary steering tool
  • Testing device for focusing bearing of directional rotary steering tool

Examples

Experimental program
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Embodiment Construction

[0036] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] Embodiments of the present invention: as figure 1 and figure 2 As shown, a focusing bearing test device for a pointing rotary steerable tool includes: a driving device 1, a torque measuring device 2, a drill collar fixing device 3 and a pressurizing device 4, and the drill collar 5 is fixedly installed on the drill collar fixing device 3. The driving device 1 is connected with the torque measuring device 2 through the first universal joint 6, and the torque measuring device 2 is connected with the guide shaft 51 on the drill collar 5 through the second universal joint 7, and the pressure transmission on the drill collar 5 The connection 52 is connected to the pressurizing device 4 .

[0038] During work, the driving device 1, the torque measuring device 2, the drill collar fixing de...

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PUM

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Abstract

The invention discloses a testing device for a focusing bearing of a directional rotary steering tool. The device comprises a driving device (1), a torque measuring device (2), a drill collar fixing device (3) and a pressurizing device (4), a drill collar (5) is fixedly mounted on the drill collar fixing device (3); wherein the driving device (1) is connected with the torque measuring device (2) through a first universal coupling (6), the torque measuring device (2) is connected with a guide shaft (51) on the drill collar (5) through a second universal coupling (7), and a pressure transmissionconnector (52) on the drill collar (5) is connected with the pressurizing device (4). According to the testing device, the focusing bearing can be tested, so that the actual working time of the focusing bearing can be obtained, and the working time required by the use of the directional rotary steering tool can be ensured.

Description

technical field [0001] The invention relates to a bearing testing device, in particular to a focusing bearing testing device of a pointing rotary guide tool. Background technique [0002] Rotary steerable drilling tool is a cutting-edge automatic drilling technology, which is the necessary equipment for complex ultra-deep directional wells and extended-reach horizontal wells. [0003] At present, the rotary steerable tools are roughly divided into two types: the push type and the pointing type. The push type rotary steerable tool is more practical and is currently used more, but the principle of the push type rotary steerable tool to change the drilling direction is through the drill collar. The push piston exerts thrust on the well wall, and changes the drilling direction of the drill bit by adjusting the steering force vector. The disadvantage of push-by steering is that this kind of steering tool uses the hydraulic palm on the non-rotating sleeve to extend to the well wa...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 杜建生底青云何新振杨永友
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI