泌阳凹陷孔隙流体压力及油气运移特征

本文依据流体压力、油气成熟度及泥岩孔隙含油饱和度,讨论了泌阳凹陷油气初次运移的深度、时期和动力,初次运移与二次运移的关系以及油气聚集等问题。并指出第四排液组合所排出的大量油气的下落有待进一步查明。

THE FLUID PRESSURE IN PORE AND MIGRATED FEATURE OF OIL AND GAS IN BIYANG DEPRESSION

In this paper, the authors calculate fluid pressure in the subsurface pore of Biyang depression by computer and propose the classification of four combinations of fluid expulsion. Based on fluid pressure, oil maturity, oil saturation in the clay pore, a series of problems of oil primary migration ( including depth, time and cause ) , relationship between primary and secondary migrations and hydrocarbon accumulation are discussed. Finally the authors indicate that the location of the large quantity of oil expelled from the fourth fluid expulsion combination must be further explore.