Abnormal well head pressure of high productivity gas wells in luojiazhai 罗家寨高产能气井测试井口压力异常分析
2.
Specification for underbalanced drilling technology - part 2 : the outfit requirements of the wellhead pressure control and surface equipment 欠平衡钻井技术规范.第2部分:井口压力控制装置及地面装置配备要求