气体欠平衡钻井技术在鄂尔多斯盆地的研究与应用

摘要

本文针对鄂尔多斯盆地低孔低渗裂缝性油气藏,分析了气体欠平衡钻井技术的主要技术理论难点,现场试验效果明显,利于推广.%This paper describes the technical and theoretical difficulties of gas underbalance pressure drilling in view of low permeability and porosity reservoir in Ordos Basin. The on-site experiments prove to be successful for further practices.