苏里格气田西区上古生界低阻气层成因分析  

Analysis on the Causing Mechanism of Low Resistivity Gas Zone of Neopaleozoic in the West of Sulige Gasfield

作　　者：徐静 杨俊龙 饶辰威 刘毅 赵俊[1] 张骞[1] 

机构地区：[1]成都理工大学能源学院,成都610059 [2]川庆钻探长庆固井公司,西安710003

出　　处：《科学技术与工程》2012年第30期7832-7835,共4页Science Technology and Engineering

摘　　要：确定苏里格气田西区低阻气层的成因机理,可更好地指导测井气层识别。依据苏里格气田西区岩心压汞、扫描电镜和测井资料,从储层目的层段电性特征研究入手,结合目前国内外对低阻油气层成因的最新认识,对该地区低阻气层进行了深入分析。分析认为该区储层岩性细及微孔隙结构发育、黏土矿物附加导电性、高不动水饱和度是造成苏里格气田西区电阻率低的主要原因。这为测井识别低阻气层提供了科学依据,准确评价此类储层具有重要意义。It can better guide log interpretation to confirm the causing mechanism of low resistivity gas zone in the Wast of Sulige Gasfield. Based on the core mercury intrusion, SEM （ scanning electron microscope） and logging data in the west of Sulige Gasfield, starting from the electrical characteristics of objective interval of reservoir, com- bined with the domestic and overseas latest understanding of the causes of low resistivity reservoirs, the low resistivi-ty gas reservoir carried out in-depth analysis. Analysis believe that reservoir fine lithology and micro-pore structure development, clay minerals additional conductivity, high immobile water saturation are the main causes of low resis- tivity in the west of Sulige Gasfield. This provides a scientific basis for identifying low resistivity gas reservoir, and accurately evaluate such a reservoir is of great significance.

关 键 词：低阻气层 微孔隙结构 附加导电性 高不动水 

分 类 号：P631.322[天文地球—地质矿产勘探]