岩溶地层水文水井泡沫钻井压力和排量计算  

The Calculation of Pressure Drop and Rate of Pump Required by Foam Drilling in Water Well in Karst Formation

作　　者：郑秀华[1] 夏柏如[1] 陈庆寿[1] 

机构地区：[1]中国地质大学〈北京〉工程技术学院,北京100083

出　　处：《探矿工程》2001年第6期45-48,共4页Exploration Engineering(Drilling & Tunneling)

基　　金：中国地质调查局地质调查项目"岩溶地层水文水井钻探冲洗技术研究与开发"(F5 1 3)中的部分研究内容

摘　　要：分析了岩溶地层水文水井施工中 ,泡沫实现平衡压力或欠平衡压力钻井的原理及影响泡沫钻井有效井眼压力的因素。采用迭代法逆循环计算方法 ,计算井口压力和井口气液排量。The principle of reaching balance drilling and under balanced drilling using foam mud in water well drilling in Karst formation was presented. The causes of inefficient pressure drop in foam drilling water well also mentioned. The pressure and flow rate of fluid in well head were calculated using iteration.

关 键 词：岩溶地层 泡沫 平衡压力钻井 欠平衡压力钻井 压力控制 水文水井 井口压力 

分 类 号：TU991.12[建筑科学—市政工程] TE242.9[石油与天然气工程—油气井工程]