提高井壁强度技术与方法

Technology and Methods to Improve Well Wall Strength

正确认识井下各种压力网岩环境,弄清井壁失稳机理,积极探索解决钻井过程中井壁失稳,提高井壁强度技术。井壁失稳给钻井工程造成的损害无可估量。井壁不稳定原因十分复杂,但其实质是井下力学不稳定,维护井壁稳定,提高井壁强度技术需深入研讨。

To understand all kinds of pressure network enviroment underground correctly and the instability mechanism of well wall, exploring the ways to solve instability problem in drilling wells activity and in order to improve well wail＇strength technology. The instability of well wall may cause inmeasurable damage to the drilling project. The instability of well wall is quite complex, and the essence is the mechanical instability underground. How to maintain the stability of the well wall and imrpove the well wall strength need in-depth discussion.