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 Dri lling in Water Well in Karst Formation

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.

Abstract:

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.