台北凹陷鄯勒地区西山窑组一、二段物源分析  

Provenance analysis of the first and the second members of Xishanyao Formation in Shanle Area of Taibei Depression

作　　者：崔立伟[1] 汤达祯[1] 许浩[1] 陈晓智[1] 李松[1] 

机构地区：[1]中国地质大学能源学院,北京100083

出　　处：《断块油气田》2011年第1期6-8,13,共4页Fault-Block Oil & Gas Field

基　　金：国家重点基础研究发展计划(973)规划项目"煤层气储层动态"(2009CB219604)

摘　　要：鄯勒地区西山窑组一、二段是一套煤系地层,是鄯勒油田的主力含油段,因此物源方向的确定对研究沉积相及其砂体展布特征具有重要意义。通过碎屑组分、重矿物组合、砂岩体积分数、地震等,对研究区西山窑组一、二段物源进行综合研究,认为鄯勒地区西山窑组一段(J2X1)是南部和北部2大物源体系共同作用的产物;西山窑组二段(J2X2)主要受到南部物源影响。北部物源控制下的砂体以扇三角洲沉积为特征,沉积物来自博格达山;南部物源体系控制下的砂体以三角洲沉积为特征,沉积物来自觉罗塔格山。The first and the second members of Xishanyao Formation in Shanle Area are coal measure strata and they are the main oil-bearing horizons, so the determination of provenance direction of Xishanyao Formation is significant for researching the characteristics of sedimentary facies and sandstone bodies distribution. According to the elastic component, heavy mineral assemblage, sand content and seismic data, this paper analyzed the provenance of the first and the second members of Xishanyao Formation in Shanle Area. The study shows that the first member of Xishanyao Formation is a common result that the provenance systems come from the south and north, the second member of Xishanyao Formation is only ＂affected by the provenance system coming from south. The sandstone bodies controlled by the north provenance system are characterized by fan delta deposition and the sediments come from Bogeda Mountain. The sandstone bodies controlled by the south provenance system are characterized by delta deposition and the sediments come from Jueluotage Mountain.

关 键 词：物源 成分成熟度 重矿物组合 砂岩体积分数 西山窑组 

分 类 号：TE122.221[石油与天然气工程—油气勘探]