摘要
井壁不稳定是大斜度井和水平井钻井中必须考虑的问题 ,文中从力学方面对井壁稳定性技术现状进行了回顾 ,主要包括岩石破坏形式、井壁周围应力状态方程、岩石强度准则、岩石破坏模式和方法等几个方面。介绍了井壁力学稳定理论的现场应用方法和应用情况。
The unstablity of the wellbore is a main consideration in high angle wells and horizontal wells.This paper reviews the technical present state on wellbore stability in a view of the mechanics such as styles of rock disintegration, stress EOS around the wellbore,rock strength principles,modes and methods of rock disintegration.The paper also presents the on-site application method and situation of the wellbore mechanic stability theory.
出处
《钻采工艺》
CAS
2003年第3期7-10,共4页
Drilling & Production Technology
关键词
大斜度井
水平井
井壁
力学稳定性
油气井
Wellbore stability,styles of rock disintegration,stress EOS,high angle deviated hole,horizontal well
