Abstract:Many people who research into induced polarization method believe that upmigrated hydrocarbon from oil reservoir can change geo- chemical environment in overburden to cause the formation of secondary pyrite crystal grains, bringing the induced polarization anomaly in the limited range of man-made electric field. However, according to petroleum geology theory, the genesis of induced polarination anomaly can not be explained in this simple way because, except pyrite, some other factors such as high mineral underground water, the variation of electric layer thickness, and the geological environment which the hydrocarbon reservoir is in also can cause induced polarization anomaly. It may be seen that induced polarization anomaly can be caused by many factors, Wuen induced polarization anomaly is used to our best to remove the indicate hydrocarbon reservoir, we must do influence of the factors which are not related to hydrocarbon reservoir. Some examples are given of induced polarization anomalies which have notilinb to do with hydrocarbon reservoir,and the reasons why these induced polarization anomalies arise are explained theoretioally.
收稿日期: 1986-06-28
引用本文:
董春山. 油气田上激电异常的成因[J]. 石油地球物理勘探, 1987, 22(2): 156-162.
Dong Chunshan. The mechanism of IP anomaly over hydrocarbon reservoir. OGP, 1987, 22(2): 156-162.