海上中深层富砂三角洲储层精细预测新方法——以J油田W区块为例  

Explore of New Method of High-precision Reservoirs Prediction Techniques of Sand Rich Delta in Middle-deep Strata Offshore:A Case of J Oilfield W Block

作　　者：黄凯 金宝强 李久 孙红杰[2] 杨志成 郑华 

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452 [2]中海油田服务股份有限公司,天津300450

出　　处：《重庆科技学院学报（自然科学版）》2014年第5期44-48,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中海石油(中国)有限公司基金项目"金县1-1油田储层精细地质研究"(S11TJKSZ019)

摘　　要：针对J油田W区块中深层富砂三角洲储层存在的纵向分层和平面精细预测的难题,利用层序地层学及沉积学理论,井震结合,分级控制,建立高精度层序地层对比格架,在旋回对比基础上实现小层精细对比。以地震沉积学为基础,运用地震分频技术,提高目的层段地震资料视分辨率,在井震标定基础上进行地震精细解释,在小层约束框架内优选最能反映储层的地震属性,建立与井点储层厚度的拟合关系,从而实现储层平面展布的定量预测。该项研究成果已成功指导J油田W区块油藏方案制定、开发层系细分和开发井实施,取得了较好的效果。Reservoir prediction in middle - deep strata has always been a bottleneck in the offshore oilfield development. The problem in reservoir prediction in delta which is rich in sand of W block in J oilfield is tough, both in vertical stratification and planar prediction. Using sedimentology and sequence theory, combination of logs and seis- mic data as well as hierarchical control method, high resolution sequence stratigraphic framework is established. With the help of frequency - divided technique depending on the resolution of seismic data, small layers of seismic reflection interface are found. Precise seismic interpretation is finished based on accurate well - seismic calibration. The fitting formula of well drilling in the reservoir thickness and seismic attributes is established, which can accurately predict the distribution of the reservoir. The achievement has successfully guided the development in J oilfield W block. Based on the best result in reservoir horizontal well drilling rate and single well production and recovery rate, W block oilfield development achieved better effect, which provides reference for similar oilfield development.

关 键 词：中深层 海上油田 富砂三角洲 分频技术 地震属性 精细预测 

分 类 号：TE51[石油与天然气工程—油气田开发工程]