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The Research of the Injurious Mechanism for Air Drilling Hole about the Underbalanced Drilling in Chuanxi

Author: YuHao
Tutor: YangZhenJie；ZhangJuBo
School: Xi'an University of Petroleum
Course: Petroleum and Natural Gas
Keywords: The air drilling Tool damage The vibration Erosion corrosion
CLC: TE982
Type: Master's thesis
Year: 2010
Downloads: 97
Quote: 0
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Abstract


The air drilling can greatly enhance the speed of the drilling, and it will protect the reservoir, so this kind of drilling technology is widely used. But the breakdown of the tool has been the vital role for the development of the ail drilling.This writings research the movement of the tool and the working environment, recognized that the resonant vibration of the drilling rig because of the transverse vibration, longitudinal vibration and the twisting vibration will damage the drilling rig greatly. And the fluid under the shaft will make the erosion corrosion, so the tool will appear lower bend or split. The papers also obtain the treating for the breakdown of the tool through the study of the damage reason. Such as the optimize of the job parameter, the improve of the working environment and the using of the vibration damper and the gas stud will decrease the tool damage. And it will limit the erosion corrosion through the rightful return speed and using air foam instead of the air. Besides, the papers also research the failure point in the air drilling.

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CLC: > Industrial Technology > Oil and gas industry > Oil machinery and equipment and automation > Corrosion and Protection of machinery and equipment > Drilling machinery and equipment for Corrosion and Protection
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