Accordingly, the effective electrolog information and its preprocess become more important In this paper, the dual laterolog data was corrected through the reversion algorithm on the basis of electrolog theory and the minimum mean square principle.

• 通过电测井资料的预处理，可提供原状地层电阻率、冲洗带地层电阻率以及泥浆滤液侵入半径等3个参数。