感应测井在欠平衡钻井条件下的应用分析

Application analysis of induction logging in under-balanced drilling conditions

文章对欠平衡钻井条件下测井方式进行了阐述,通过不同电阻率下对感应测井进行数字模拟,发现气体、泡沫等介质对感应测井影响较小;再进行现场实验,对天然气介质和原油介质条件下感应测井资料进行分析,说明感应测井在气体、泡沫等欠平衡钻井条件下可行。

With an elaboration of the induction logging method in under-balanced wells,based on the numerical simulation under different resistivity conditions,and the analysis of induction logging through oil-bearing or gas-bearing formation from field experiments,we found that medium such as gas,foam make much less influence on induction logging,therefore it is feasible to run induction logging in under-balanced wells.