文昌W油田北块厚层油藏隔夹层展布及其对剩余油分布的影响研究  

Research on the Distribution of Interlayers and the Distribution of Remaining Oil in Thick Reservoirs in the North Block of Wenchang W Oilfield

作　　者：张磊 潘燕 罗佼 姚意迅 陈建 ZHANG Lei;PAN Yan;LUO Jiao;YAO Yixun;CHEN Jian(Hainan Branch of CNOOC Ltd.,Haikou 570312,China)

机构地区：[1]中海石油(中国)有限公司海南分公司,海南海口570312

出　　处：《广东石油化工学院学报》2023年第6期38-42,共5页Journal of Guangdong University of Petrochemical Technology

摘　　要：文昌W油田珠海组二段Ⅵ油组为厚层强边底水驱油藏,目前已处于中高含水期,剩余油分布复杂。该油组为扇三角洲前缘水下分流河道沉积,储层厚度大,纵向上为多期砂体叠置,隔夹层发育。为了厘清剩余油分布模式,对隔夹层开展研究。研究表明:研究区隔夹层主要为沉积作用形成的泥质隔夹层和物性隔夹层,层间厚度较大且分布稳定的泥质隔夹层对剩余油控制起主导作用,因此精细刻画了层间泥质隔夹层,明确了层间泥质隔夹层空间展布特征,总结了隔夹层的控油模式以及剩余油富集区,可为后续油田挖潜提供依据。The VI oil group of the second member of Zhuhai Formation in Wenchang W Oilfield is a thick-layered and strong edge-bottom water-flooding reservoir.Currently,it is in the medium-high water-cut stage,and the distribution of remaining oil is complex.The oil group is a subaqueous distributary channel deposit in the fan delta front,the reservoir is thick,the multi-stage sand bodies are superimposed vertically,and the interlayers are developed.To clarify the distribution pattern of remaining oil,the interlayer was researched.The research shows that the interlayers in the research area are mainly muddy interlayers and physical interlayers formed by sedimentation.Interlayers clarify the spatial distribution characteristics of shale interlayers between layers.The research summarizes the oil control mode of the interlayers and the remaining oil enrichment areas and provides a basis for subsequent oilfield exploration.

关 键 词：扇三角洲前缘 厚层油藏 隔夹层展布 剩余油分布 

分 类 号：TE34[石油与天然气工程—油气田开发工程]