摘要
To develop the accuracy of the log interpretation and satisfy the need of water injection development, the authors introduced microelectrode logging in Niujuanhu Oilfield of J2x. In this paper, the authors analyzed the application effect of microelectrode logging in many ways, such as the application conditions and limits. By using the information of conventional combination logging, nuclear magnetic resonance logging and array induction logging, the authors concluded a few methods to identify the effective reservoir. And they have given good results in application.