官南气田须家河组高分辨率层序地层学分析  

HIGH-RESOLUTION SEQUENCE STRATIGRAPHY OF XUJIAHE FORMATION IN GUANNAN GAS FIELD

作　　者：疏壮志[1,2] 彭军[1] 殷孝梅[1] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500 [2]中国石油化工股份有限公司东北分公司,吉林长春130062

出　　处：《西南石油大学学报（自然科学版）》2008年第5期73-76,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：四川省重点学科建设项目(SZD0414)

摘　　要：针对官南气田主要含气层段须家河组的地层、砂体划分与对比等所存在的认识较肤浅,很大程度制约了官南气田油气勘探的总体规划和部署,也影响着勘探的成功率。以高分辨率层序地层学原理为指导,将官南气田须家河组划分为6个中期、22个短期、69个超短期基准面旋回层序,分析了各级次基准面旋回层序的垂向序列、岩性岩相组合、结构类型及叠加样式等特征,探讨了高分辨率层序地层学在地层划分与等时对比、高分辨率层序地层格架的建立、小层砂体和单砂体的精细对比、有利储层发育部位的确定等研究中的应用,为官南气田下一步的油气勘探提供了科学依据。The lack of systematic research on the principal of T3x gas containing strata,sand division and correlation in Guanan gas field largely constrains the Guannan gas field exploration in the overall planning,deployment,and the exploration success rate.Under the guidance of the theory and technology of the high-resolution sequence stratigraphy,according to the identification symptoms of the sequence interfaces and lakeflood sedimentation,combining the comprehensive analysis of outcrops,rock cores,well logs and seismic interpretation,six middle-term,twenty-two short-term,sixty-nine super-short-term base-level cyclic sequences are recognized in Xujiahe formation,Guannan gas field.On the basis of the above studies,the vertical sequences,facies associations,lithologic components,structural types and stacking patterns are discussed in detail.The application of these different-grade base-level cycle sequences to the stratigraphic division and isochronal correlation,the foundation of sequence stratigraphic framework and the sand body distribution regularity are probed into in the light of these sequence characteristics,which provide a scientific basis for the next exploration.

关 键 词：高分辨率层序地层学 基准面旋回 层序界面 须家河组 官南气田 

分 类 号：TE122[石油与天然气工程—油气勘探]