高分辨率层序分析在超前注水开发中的应用——以渭北油田渭北2井区长3油藏为例  

Application of high-resolution sequence analysis in advanced water injection development——taking Chang-3 formation in 2^(nd) well block of Weibei oilfield as an example

作　　者：顾丽娜[1] 尹超[1] 李熹微 邵隆坎[1] 

机构地区：[1]中国石化华北分公司石油勘探开发研究院,河南郑州450006 [2]中国石油华北油田分公司石油勘探开发研究院,河北任丘062552

出　　处：《油气藏评价与开发》2015年第2期37-41,共5页Petroleum Reservoir Evaluation and Development

摘　　要：运用高分辨率层序地层学的基准面旋回原理,以钻井、测井资料的综合研究为基础,并结合陆相湖盆层序地层特征和地震剖面资料,分析了渭北油田渭北2井区长3段不同级次基准面旋回层序界面特征及识别标志,将渭北油田长3油层划分为5个短期基准面旋回,建立起该区长3油层高分辨率层序地层格架。通过运用相控—准层序组小层等时对比新技术极大提高了超前注水实验区的单层砂体对应性,超前注水开发效果显著,为输导体系研究奠定了基础。By base-level cycle principle of high-resolution sequence stratigraphy, based on the comprehensive study of drilling and logging data, and combined with the sequence stratigraphic characteristics and the seismic profile data of continental lake ba？sin, the sequence boundary characteristics and identification marks under different class of base-level cycle of Chang-3 formation in 2nd well block of Weibei oilfield were analyzed to divide the oil layer into five short-term base-level cycles and establish the stratigraphic framework of high-resolution sequence. The new phase control-sequence group thin layer isochronous contrast tech？nology greatly improved the single sand body correspondence of the advanced water injection test area and laid the foundation of the transport system.

关 键 词：鄂尔多斯盆地 高分辨率层序地层学 基准面旋回 地层格架 延长组 

分 类 号：TE121.3[石油与天然气工程—油气勘探]