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Test stand for testing performance of dynamic directional rotary steering drilling tool

A technology of rotary steerable drilling and dynamic pointing, which is applied in the field of petroleum drilling engineering and can solve problems such as inability to break through and lack of key technologies

Active Publication Date: 2017-09-29
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research institutions have carried out research on rotary steerable drilling devices based on foreign technologies. Although directional drilling and azimuth adjustment can be realized in principle, many key technologies still cannot be broken through due to the lack of sufficient laboratory experiments.

Method used

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  • Test stand for testing performance of dynamic directional rotary steering drilling tool
  • Test stand for testing performance of dynamic directional rotary steering drilling tool
  • Test stand for testing performance of dynamic directional rotary steering drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] If WOB needs to be applied to the tool, the oil pump will pressurize the oil chamber on the right through oil holes 24-15. The oil pressure pushes the hollow shaft 4-16 of the cylinder to transmit the axial force through the cover 4-23, the pressure sensor 4-7, the retaining ring 4-25, the thrust ball bearing 1 4-26, the flange 2 4-4, the flange A 4-3 is passed to the drill 4-1. If unloading is required, oil hole 2 4-15 first releases the pressure, and then the oil pump pressurizes the left oil chamber through oil hole 1 4-13 to achieve the unloading effect.

Embodiment 2

[0048] If the torque load needs to be loaded, the hydraulic pump 4-18 passes the output shaft 4-20, the flat key four 4-19, the load shaft 4-6, the flat key two 4-5, the flange one 4-3, the flange two 4- 4. The flat key one 4-2 is passed to the drill bit 4-1.

Embodiment 3

[0050] If the drill bit 4-1 needs to swing during loading, the drill bit 4-1 drives everything except the baffle to swing in any direction. The baffles 4-11 counteract the axial reaction force generated by the axial force.

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Abstract

The invention discloses a test stand for testing the performance of a dynamic directional rotary steering drilling tool. The test stand comprises a frame body, a rotating device, a clamping device and a loading device, can simulate the steering process of the directional rotary steering drilling tool in actual well conditions, and can realize random adjustment for the angle of a controllable bent joint within an operating range thereof while the directional rotary steering drilling tool bear the axial pressure torque at the same time. Experimental research on the aspects such as verification for the steering performance, the reliability and a control principle of the directional rotary steering drilling tool through loading the axial pressure and torque, and research on simulated well drilling can also be carried out. The test stand can be used for performance testing and principle verification for the directional rotary steering tool.

Description

technical field [0001] The invention belongs to the field of petroleum drilling engineering, and particularly relates to a test bench for a directional rotary steerable drilling tool. Background technique [0002] In order to meet the requirements of exploration and development of oil and gas resources, there are more and more complex structure wells such as extended reach wells, 3D multi-target multilateral wells, and long horizontal section horizontal wells, and they are becoming more and more routine. Conventional sliding drilling technology can no longer meet the drilling requirements of complex wells. The technical requirements of the process, its low drilling efficiency, poor wellbore purification, poor well depth quality, frequent underground accidents and many other problems have seriously affected the development of my country's drilling industry and oil extraction technology. Therefore, the rotary steerable drilling technology came into being, that is, the rotary st...

Claims

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Application Information

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IPC IPC(8): G01M99/00
CPCG01M99/008
Inventor 张光伟李庆伟孙学珍
Owner XI'AN PETROLEUM UNIVERSITY
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