乌南油田滨浅湖砂体储层构型及其油气意义  

Reservoir architecture of the shore-shallow lake sand body and its implication in Wunan oilfield

作　　者：石金华[1,2] 韩登林[3,4] 于炳松[1] 李仕远[2] 王宝[2] 陈景华[2] 

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]中国石油青海油田公司,甘肃敦煌736202 [3]长江大学地球科学学院,武汉430100 [4]长江大学油气资源与勘探技术教育部重点实验室,武汉430100

出　　处：《地质科学》2016年第4期1310-1323,共14页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：国家油气重大专项“特低渗透油藏有效开发技术”（编号：2011ZX05013-06）和中国石油天然气集团公司“十二五”重大专项“柴达木盆地难采储量有效动用技术攻关研究”（编号2011E-0307）资助.

摘　　要：基于Miall储层构型研究思想，结合岩心、测井、测试等资料，对乌南油田砂坝砂体储层构型界面特征进行了研究，确定了储层构型界面识别标志；在此基础上，将砂坝内部构型分为坝主体和坝侧缘，同时通过动、静态结合，明确砂坝外部构型存在孤立、视连通、左侧向叠置和右侧向叠置4种模式；纵向上发育湖退（进积）和湖进（退积）两种砂体发育模式。坝主体是主力储层，具有良好油气显示；坝主体分布面积大、出现频率高为油气有利区域。Based on the Miall reservoir architecture theory,and through core,logging,testing data,characteristics of reservoir conformation boundaries of beach-bar sandstone bodies in Wunan oilfield were well analyzed,and reservoir architecture interface identification was determined. Inner architecture of sand bar can be divided into sand bar body and sand bar margin. Meanwhile,combining static and dynamic analysis,outer architecture of sand bar can be classified into four modes,such as isolated mode,apparent connected mode,left superimposed mode and right superimposed mode. In the longitudinal direction,two kinds of sand distribution patterns were well developed,like progradation pattern and retrogradation patteren. Sand bar body is main reservoirs of this area,and has good oil and gas shows. Large distribution and high frequency of sand bar body are favorable for oil and gas exploration and development.

关 键 词：滨浅湖 滩坝 储层构型 坝主体 坝侧缘 砂体连通模式 

分 类 号：P534[天文地球—古生物学与地层学] P539.2[天文地球—地质学]