... 表皮系数 Skin factor 研究半径 Radius of investigation 井的生产时的实际半径 Effective radius of well ...
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If skin factor of formation damage is more, its radius of investigation is less.
井底附近地层渗透率降低比改善对调查半径的影响要大。
The radius of investigation depends on the extent and scope of formation damage.
井底附近地层渗透率降低程度、范围愈大 ，则调查半径愈小 ；
The long-normal resistivity has a deeper radius of investigation than the short-normal resistivity.
长电位电阻率测井比短电位电阻率测井具有更深的探测半径。
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