钻井过程中出现的护壁堵漏和保护地层渗透性的矛盾 ,是困扰钻井工程技术人员多年的老大难问题。中国地质大学 (武汉 )工程学院乌效鸣教授展示了一种新型暂堵型钻井液 ,实现了大于 90 %恢复产层渗透性的功效 ,有效解决了这一难题。2 0 0 0年 ,乌效鸣教授等人承担了中国地质调查 During the drilling process, the contradiction between retaining wall plugging and protective formation permeability is a long-standing problem troubling drilling engineers and technicians for many years. Professor Wu Xiaoming from China University of Geosciences (Wuhan) University of Science and Engineering demonstrated a new type of temporary plugging drilling fluid and realized the effect of recovering the permeability of the pay zone by more than 90%, effectively solving this problem. In 2000, Professor Wu Xiaoming and others assumed the China Geological Survey