常見例句雙語例句Air drilling is a kind of under-balanced drilling technology with air, whose rock breaking form is different from conventional mud drilling.空氣鉆井技術是以空氣作為循環(huán)介質的欠平衡鉆井技術,其鉆頭的破巖形式與常規(guī)泥漿鉆井有很大的區(qū)別。From the points of technical principles and construction flow diagram, the paper expounds the effects of under-balanced drilling on gas logging.前言: 從欠平衡鉆井的工藝原理和施工流程角度出發(fā),闡述了欠平衡鉆井對氣測錄井的影響。The under-balanced drilling technology is based on how to control the bottom negative pressure which is related to the pressure computation of multiphase flow in annulus .井底負壓值控制是欠平衡鉆井技術的基礎,而井底負壓值的大小與環(huán)空多相流的有關壓力計算有關。 返回 balanced drilling