老挝可溶性矿床钻探无固相饱和盐水钻井液护壁技术和堵漏方法

Drilling in Soluble Deposit by Wall Protection Technique and Leakage Control with No Solid Saturated Saltwater Drilling Fluid in Laos

摘要:

在老挝可溶性矿（钾盐）地质钻探工作中，采用了无固相饱和盐水钻井液及双液单泵送浆固壁堵漏方法，钻进效率及经济效益有了大幅度提高。分析了钻探施工中遇到的问题，介绍了无固相饱和盐水钻井液护壁技术及双液单泵送浆固壁堵漏方法的应用及效果。

Abstract:

According to the difficulties encountered in the geological drilling in soluble deposit (potassium salt) in Laos, no solid saturated saltwater drilling fluid and double liquid grouting with single pump were adopted with drilling and economical efficiency greatly increasing. Analysis was made on the problems in the drilling process and the application and the effects of these technical methods were introduced.