克拉玛依油田一东区克拉玛依组沉积相与剩余油分布关系研究  

Relationship between sedimentary facies and remaining oil distribution of Karamay Formation in eastern block 1 of Karamay Oilfield

作　　者：朱志良[1] 熊迪[1] 岳渊洲[2] 吕孝威[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《岩性油气藏》2013年第3期112-118,共7页Lithologic Reservoirs

基　　金：国家自然科学青年基金项目"一东区克拉玛依组油藏单砂体;剩余油定量表征及开发政策研究"(编号:40602012)资助

摘　　要：克拉玛依油田一东区克拉玛依组剩余油丰富,但分布规律复杂,具有"高度分散、局部富集"的特点。精细刻画其沉积相特征,可对确定剩余油分布规律提供帮助。运用岩心和测井资料,对该区克拉玛依组的岩石学特征、沉积构造特征和测井相特征等进行研究,并通过各种相组合、相配置及其测井响应模式等综合分析,识别了一东区克拉玛依组的沉积相类型主要有冲积扇、辫状河、扇三角洲和湖泊相。讨论了沉积相的平面展布和纵向演化,认为克拉玛依组经历了2次湖侵,纵向上可划分为3个向上变细的正旋回。在物性较差的沉积相中讨论了剩余油的分布规律,对油田的后期开发及剩余油的开采具有重要的指导意义。Karamay Formation in eastern block 1 of Karamay Oilfield is rich in remaining oil, but the distribution of remaining oil is very complicated, with the characteristics of highly dispersed and local enrichment. Sedimentary facies is one of the main factors controlling the reservoir development, so the fine description of sedimentary facies can provide help for studying the regulation of the remaining oil distribution. Based on core and well logging data, the characteristics of petrology, sedimentary structure and electroficies were studied. Trough the analysis of facies association, facies matching and well logging response, the sedimentary facies types of Karamay Formation in eastern block 1 were identified, including alluvial fan, braided river, fan delta and lake facies. The plane distribution and vertical evolution of sedimentary facies were discussed. It is considered that Karamay Formation mainly experienced twice of lake transgression, and can be vertically divided into three up fine normal cycle. The remaining oil distribution in the microfacies that have poor properties was discussed, which has important guiding significance for the further development of the oilfield.

关 键 词：沉积相 剩余油分布 油田开发 克拉玛依组 准噶尔盆地 

分 类 号：TE121.3[石油与天然气工程—油气勘探]