渤海BZ油田S砂体构型解剖及开发实例  

Structural Anatomy and Development Example of S Sand in Bohai BZ Oilfield

作　　者：袁勋 YUAN Xun(Tianjin Branch,CNOOC Ltd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《广东石油化工学院学报》2025年第1期71-75,共5页Journal of Guangdong University of Petrochemical Technology

摘　　要：BZ油田明下段以浅水三角洲分流河道沉积为主,通过开展以密度为主的拟波阻抗反演,有效地描述了油田储层的分布特征。在反演资料基础上,通过井震精细标定、地震属性和地震相分析,总结了S砂体的4种发育模式及砂体构型平面展布特征,S砂体内多条水下分流河道交织、叠置,河道之间发育分流间湾和天然堤。将该成果应用于地质精细建模中,优化开发方案,沿水下分流河道优势储层部署水平开发井,有效规避了储层风险,实现了油田高效开发。The lower section of Nm Formation of BZ Oilfield is mainly composed of shallow water delta distributary channel sedimentation.By conducting density-based pseudo wave impedance inversion,the distribution characteristics of the oilfield reservoirs have been effectively described.Based on inversion data,four development modes and planar distribution characteristics of S sand were summarized by conducting fine calibration of well seismic data,seismic attributes,and seismic facies analysis.Multiple underwater distributary channels were interwoven and stacked in S sand,with distributary bays and natural embankments developed between the channels.This achievement can be applied to geological fine modeling,optimizing development plans,deploying horizontal development wells along the advantageous reservoirs of underwater distributary channels,effectively avoiding reservoir risks,and achieving efficient oilfield development.

关 键 词：浅水三角洲 波阻抗反演 构型解剖 井网优化 

分 类 号：TE122[石油与天然气工程—油气勘探]