中国低密度欠平衡钻井液研究应用现状

STUDY AND APPLICATION STATUES OF LOW DENSITY UNDERBALANCE DRILLING FLUID IN CHINA

在对低密度欠平衡钻井液进行了分类的基础上 ,认为我国目前低密度欠平衡钻井液的研究与应用基本上集中在气体钻井液、充气钻井液、乳化钻井液、泡沫钻井液 4大类钻井液上。详细分析和论述了这 4类钻井液在我国的研究应用现状 。

In this article,low density drilling fluid is classified.At present,study and application low density underbalance drillig fluid focus on four aspect:①gas drilling fluid;②aeration drilling fluid;③emulsi on drilling fluid;④foam drilling fluid.Study and application stage of four type of drilling fluids in china are analyzed.And study and application stage of underbalance drilling fluid in Zhongyuan oilfield is introduced.