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

• 油气藏工程 • Previous Articles     Next Articles

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
  

  1. (Dept. of Petroleum Engineering)
  • Received:1994-10-13 Revised:1900-01-01 Online:1995-04-20 Published:1995-04-20

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: