荷包场地区须家河组须二段有效储层研究  

Effective Reservoir of Upper Triassic Xujiahe 2 Member in Hebaochang Area,Sichuan Basin

作　　者：蒋裕强[1] 王立恩[1] 高阳[1] 白龙[1] 甘燕芬[1] 邵光玉[1] 

机构地区：[1]西南石油大学,四川新都610500

出　　处：《天然气技术》2009年第3期17-20,共4页NATURAL GAS TECHNOLOGY

摘　　要：川中—川南过渡带荷包场地区上三叠统须家河组经几十年的勘探已经取得了良好的效果。通过对该区多口井的岩石学以及电性、物性的分析研究,认为须家河组须二段储层岩石类型为长石岩屑石英砂岩、长石石英砂岩和岩屑石英砂岩,平均孔隙度为9.75%,平均渗透率为0.214×10-3μm2,为典型的低孔低渗储层。根据这一特点,结合孔渗关系曲线以及含气性等参数,在有效储层下限研究的基础上,对该区有效储层的平面展布规律进行了研究。A better result has been obtained since several decades'exploration for Upper Triassic Xujiahe Formation in Hebaochang area,which is located at a transitional zone from central to southern Sichuan Basin.It is found that Xujiahe 2 Member is composed of feldspar lithic quartz sandstone,feldspar quartz sandstone and lithic quartz sandstone after an analysis on petrology,electrical property and physical property for many wells.This member is a typical low-porosity and low-permeability reservoir with mean porosity of 9.75% and mean permeability of 0.214 mD,respectively.According to a research on lower limit of effective reservoir,the planar distribution of effective reservoir in Hebaochang area was studied combining porosity-permeability relationship curve and some parameters of gas-bearing properties.

关 键 词：四川盆地 荷包场 须家河组 有效储层展布 

分 类 号：P618.13[天文地球—矿床学]