电成像在苏里格山西组储层精细描述中的应用  

Application of imaging logging in fine reservoir description in Shanxi formation of Sulige gas field

作　　者：郝骞[1,2] 李武科[1,2] 闫丽 郝晋美[1,2] 赵占良[1,2] 石林辉 王文胜[1,2] 

机构地区：[1]中国石油长庆油田苏里格气田研究中心,陕西西安710018 [2]低渗透油气田勘探开发国家工程实验室,陕西西安710018 [3]中国石油长庆油田第三采气厂,陕西西安710018

出　　处：《湖北大学学报（自然科学版）》2015年第6期513-519,共7页Journal of Hubei University：Natural Science

基　　金：国家科技重大专项(2011ZX05044);致密气藏开发重大工程技术研究项目(2012E-1306)资助

摘　　要：应用电成像深入探讨苏里格气田某区块山西组储层裂缝类型、分布及其与试气效果之间的关系，识别并建立更为精细的沉积微相模型，解释古水流方向，开展综合性的沉积环境精细描述以还原地下储层真实沉积特征，加深对非常规天然气储层的认识和开发能力．研究表明，山西组储层多见天然裂缝，裂缝倾角分布在45°～90°之间，走向分布在75°～256°之间，在电成像板状交错层理砂体前积方向指示古水流方向分析的基础上，结合三维地震和重要电性参数综合分析，明确低渗气藏在强水动力、气测饱满、砂体电性及物性响应好的配置下，发育天然裂缝的储层捕获高产气井的几率较大．Take Shanxi formation in some block in Sulige gas field as an example,this paper restored thereal sedimentary characteristics and improved the understanding of the unconventional natural gas reservoirthrough the imaging logging fracture identification,the relationship between fracture and well testing,palaeocurrent direction analysis,and fine description of sedimentary micro-facies. The results shows,naturalfracture is the mainly type of the target reservoir fracture,the average fracture dip angle is 45° 90°,and theaverage angle of fracture trend is 76° 256°. Based on sand progradational directions indicating thepalaeocurrent direction,seismic interpreting and some important logging parameters,the reservoir withnature fracture should be get good production under strong hydrodynamics,good gas bearing in logging curvesand sand properties.

关 键 词：苏里格 电成像 山西组 储层精细描述 裂缝分析 古水流方向 

分 类 号：P618.13[天文地球—矿床学]