四川八角场气田上三叠统香四段储层描述与潜力评价

Reservoir Descrption and Potential Evaluation of Member Xiang-4 of Upper Triassic

本文介绍了八角场气田香四段地质特征及经验公式的建立方法,采用孔隙度、地面空气渗透率、含水饱和度、砂岩颗粒平均直径、厚度及地下含烃丰度等六项参数对35个细层进行了描述,研究了孔隙度>10％的1类砂体的展布规律,对香四段含烃潜力进行了评价。

In this paper, the geological characteristics of member Xiang-4 in Bajiaochang Gas Field and the method of setting up the experience formula are introduced, 35 layers are descripted by use of six pa- rameters, i. e. porosity, surface air permeability, water saturation, averge particle diameter of sand- stone, thickness and subsurface hydrocarbon abundance, etc., and the distribution rule of Class I sand- stone with porosity more than 10% is studied as well as the hydrocarbon potential of member Xiang-4 is also evaluated.