Study on Unstability Mechanism of Xishanyao and Badaowan Coal Seam Wellbore in Tuha Basin

doi:10.3863/j.issn.1000-2634.1995.02.09

西南石油大学学报(自然科学版) ›› 1995, Vol. 17 ›› Issue (2): 55-64.DOI: 10.3863/j.issn.1000-2634.1995.02.09

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Study on Unstability Mechanism of Xishanyao and Badaowan Coal Seam Wellbore in Tuha Basin

Wang Ping-quan Liang Da-chuan Cui mao-rong Luo Ping-ya

(Dept. of Petroleum Engineering)

Received:1994-10-13 Revised:1900-01-01 Online:1995-04-20 Published:1995-04-20

Abstract

Abstract:

This paper analyzes the complexity and its reason of Xishanyao and Badaowan coal seam wellbore in Tuha Basin，and emphatically discusses the mechanism of the coal seam wellbore unstability. The result shows that coal seam wellbore unstability is a synthetic effect caused by such factors as physics，chemistry，mechanics and machinery.

Key words: Tuha Basin, Xishanyao, Badawan, Coal seam, Hole sloughing prevention, Hole damage, Hole .stabilization

CLC Number:

TE283

Wang Ping-quan Liang Da-chuan Cui mao-rong Luo Ping-ya. Study on Unstability Mechanism of Xishanyao and Badaowan Coal Seam Wellbore in Tuha Basin[J]. 西南石油大学学报(自然科学版), 1995, 17(2): 55-64.

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Study on Unstability Mechanism of Xishanyao and Badaowan Coal Seam Wellbore in Tuha Basin

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