自然电位在油气勘探中的应用及其新生异常分析

本文通过对自然电位在油气勘探中应用实例的分析，肯定了自然电位法的实际效果。同时根据实测资料证实在已知采油区出现一种附加的自然电位负异常。为与油气藏引起的自然电位异常加以区别，提出了新生异常与原始异常的概念。进而通过实测资料对比，分析了新生异常与原始异常的差异，以及新生异常随开采时间而变化的现象。在此基础上，阐述了分析、研究新生异常及其特征的实际意义。

THE APPLICATION OF SPHERICAL POTENTIAL (SP) IN THE OIL-GAS EXPLORATION AND ITS REGENERATIVE ANOMALY ANALYSIS

The actual effect of SP method is affirmed from the example of application in petroleum exploration. On the basis of practical data, it is proved that an additional SP negative anomaly occur in known oilfields. The regenerative and original anomaly are put forward in order to differentate the SP anomaly produced by oil-gas pool from that of regeneration. The differentation between regenerative and original anomaly, and the phenomenon of regenerative anomaly variation with time, are analysed from the necessary data. The characteristics and sighificame of regenerative anomaly are discussed.