摘要
在弹塑性力学理论的基础上，分析了直井井眼周围岩石的应力分布，推导出了井眼稳定的理论方程，建立了地应力、岩石抗拉强度、抗压强度和钻井液密度的关系式。
Based on elastic plastic mechanics theory, stress distribution
of rock around wellbore is analyzed and theoretical equations of wellhole stability are deduced.
The relationship formula among ground stress, tensile strength and compression strength of rock,
density of drilling fluid is also founded. Meanwhile, some views are put forward in this paper.
出处
《石油钻探技术》
CAS
北大核心
1999年第4期21-22,共2页
Petroleum Drilling Techniques
关键词
直井
井眼稳定
钻井设计
straight well,hole stabilization,theoritical analysis,equation,formation breakdown
pressure,stress analysis
