摘要
本文根据洪德地区岩芯、录井、测井解释及动态资料综合研究了沉积环境与储层物性,认为该地区长6储层为特低孔-超低渗储层类型致密砂岩储层,沉积相为三角洲前缘亚相沉积,可细分为水下分流河道、河口坝和水下分流间湾3种沉积微相。结合试油数据、含油性录井资料,将储层划分为三个等级,并选出15个Ⅰ类有利储层、13个Ⅱ类有利储层和7个Ⅲ类有利储层。
Based on the core, logging, logging interpretation and dynamic data of Hongde area, the sedimentary environment and reservoir properties are studied comprehensively. It is believed that the Chang 6 reservoir in the area is a tight sandstone reservoir of ultra-low porosity-ultralow permeability reservoir type. The sedimentary facies are sub-facies of the delta front, which can be subdivided into three sedimentary microfacies:the underwater distributary channel, the estuary dam and the underwater diversion bay. Combined with oil test data and oil-bearing logging data, the reservoir is divided into three grades, and 15 Class I favorable reservoirs, 13 Class II favorable reservoirs and 7 Class III favorable reservoirs are selected.
引文
[1]邹才能,张国生,杨智等.非常规油气概念、特征、潜力及技术—兼论非常规油气地质学[J].石油勘探与开发,2013,40(4):385-399.
[2]邹才能,朱如凯,吴松涛等.常规与非常规油气聚集类型、特征、机理及展望——以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187.
[3]曹喆,柳广弟,柳庄小雪等.致密油地质研究现状及展望[J].天然气地球科学,2014,25(10):1499-1508.
[4]姚泾利,邓秀芹,赵彦德等.鄂尔多斯盆地延长组致密油特征[J].石油勘探与开发,2013,40(2):150-158.