宁东油田延长组长81油藏储层特征研究  

Characteristics of Chang81Reservoir of Yanchang Formation in Ningdong Oilfield

作　　者：罗衍灵[1] 闫金鹏[1] 

机构地区：[1]中国石化华北分公司

出　　处：《低渗透油气田》2015年第1期45-48,共4页

摘　　要：宁东油田位于鄂尔多斯盆地天环坳陷中段西部，毗邻西缘；中断带中段东部，向东与天环向斜中段衔接过渡。通过系统研究宁东油田延长组长8，油藏的储层岩性、物性、四性关系等特征，认为宁东油田延长组长8沉积相为三角洲前缘亚相沉积，长8，亚油层组的储层主要为水下分流河道砂体，研究结果表明长8l为低、特低孔隙度，特低渗透率储层。Through systematic research of reservoir lithology, physical properties, four-property-relations and other features of Yah- chang Formation Chang81 reservoir of Ningdong oilfield, it is considered that the sedimentary facies of the Yanchang Formation Chang8 reservoirs is delta front sedimentary subfacies, and sub- oil-reservoir group of Chang81 is mainly underwater distributary channel sand bodies. The findings indicate that the Chang81 reservoir is with low or extra-low porosity and extra-low permeability.

关 键 词：鄂尔多斯盆地 宁东油田 延长组 长81油藏 储层特征 

分 类 号：TE121.13[石油与天然气工程—油气勘探]