Device for testing stable platform

A technology for stabilizing platforms and testing devices, applied to measuring devices, drilling equipment, drilling equipment and methods, etc., to achieve the effects of ensuring accuracy, stable and accurate work, and reducing interference

Active Publication Date: 2010-06-09
中石化石油工程技术服务有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To complete complex borehole trajectories, especially to truly realize downhole closed-loop control, traditional drilling tools can no longer meet the requirements. It is necessary to develop a more flexible and fully adjustable rotary steerable downhole tool. A stable platform device that changes the resultant force acting on the drill bit or changes the degree of eccentricity of the drill

Method used

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  • Device for testing stable platform

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Experimental program
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Embodiment Construction

[0012] Now in conjunction with the accompanying drawings of the description, the present invention will be further described.

[0013] The stable platform testing device of the present invention is composed of two parts: a stand unit 27 and a rotating base unit 32 . The stand unit 27 can simulate the working state of the stabilizing platform 33 when it is working underground, simulating whether the output shaft of the stabilizing platform 33 can be controlled accurately and work stably under a certain load under the drive of downhole mud. The rotating base unit 32 can make the stable platform 33 have a given spatial state, thereby simulating the downhole azimuth and well deviation of the stable platform 33 .

[0014] Such as figure 1 As shown, the stable platform test apparatus consists of a bench unit 27 and a rotating base unit 32 . A stable platform 33 is installed on the stand unit 27 . The hydraulic swing cylinder 31 or electric system installed on the rotating base un...

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Abstract

The invention discloses a device for testing a stable platform, which comprises a measurement bench unit and a rotary base unit. The measurement bench unit is made of a non-magnetic or weak magnetic material, which can effectively reduce the interference on the stable platform so as to ensure the accuracy of a test result; the measurement bench provides the stable platform with a required rotation speed of a generator, a rotation speed of a drill collar and a load torque, and can simulate underground working conditions; and a measurement system can obtain parameters of a rotation angle and a rotation speed of the stable platform, the rotation angle, the rotation speed and an output torque of an output shaft, an inclined angle of a test bed and the like, thereby verifying whether the performance parameters of the stable platform are correct. The rotary base unit can realize free oscillation of a platform in a spatial vertical plane and free rotation of the platform around the central axis of the base, thereby simulating well deviation and the change of an orientation parameter, and verifying whether the stable platform works stably and accurately.

Description

technical field [0001] The invention relates to a test and measurement device used for testing the stable platform of a rotary steerable drilling system in petroleum drilling engineering. Background technique [0002] Changes in the requirements of drilling methods have prompted continuous improvement of drilling tools. With the increasing production and application of directional well and horizontal well drilling technology, various corresponding downhole steering tools have appeared one after another. In the early days, rotary table drilling tools were used, such as trough diverters, sleeve azimuth controllers and various special structure drill bits, etc. At present, downhole dynamic drilling tools are the most widely used. The use of the existing power steering technology is not conducive to the selection of the drill bit. The existence of large friction in the "sliding" mode makes the control of the bottom hole tool surface more difficult, and it is impossible to achie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02E21B7/02
Inventor 孙峰林恩怀陈威刘庆龙王义峰
Owner 中石化石油工程技术服务有限公司
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