gas zone refining 气体区域提纯
identify oil and gas zone 油气层识别
Dry gas zone 干气带
oil gas zone 油气层
oil-gas zone 油气区带
full gas zone 饱气带
high gas zone 高瓦斯带
free gas zone 游离气带
along with the gas field in zhongyuan oil field,gas zone pressure is gradually fail. the fluid is leak very much in the well cleanout work,indeed,unable to found circulation,and the pollution to gas zone is so strictness.
中原油田随着气田的开发,气层压力逐渐降低,在修井过程中压井液漏失非常严重,甚至根本无法建立循环,压井液的漏失对气层的污染加重。
参考来源 - 氮气泡沫压井液冲砂工艺技术·2,447,543篇论文数据，部分数据来源于NoteExpress
The composition of clay minerals is the main cause generating low-resistivity gas zone.
粘土矿物成份是造成气层电阻率低的主要原因。
The sedimentary facies and the sedimentary cycle control low resistivity oil & gas zone on sedimentation .
在沉积上受沉积相、沉积旋回的控制；
Steam zone or gas zone identification with elastic waves is the interest of the poroelasticity application.
利用声波（或地震波）进行地下蒸汽和含气识别是孔隙弹性波动理论研究的应用方向之一。
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