石油实验地质Issue(4)：414-418,425,6.DOI:10.11781/sysydz201304414
酒泉盆地营尔凹陷有效烃源岩的确认及其展布特征
Confirmation and distribution features of effective source rocks in Yinger Sag, Jiuquan Basin
摘要
Abstract
Based on the basic theory of hydrocarbon generation and expulsion of source rock, TOC content, pyroly-sis parameter S1 and chloroform bitumen“A” content have been correlated to confirm the lowest limit of TOC con-tent of effective source rocks from the Lower Cretaceous in the Yinger Sag. The lowest limit of TOC content of effective source rocks from the Xiagou Formation is 0.8%, while that from the Chijinbu Formation is 0.6%. Combi-ning with the prediction from TOC content by single well logging, the thickness of effective source rock in single well has been calculated. The distribution of effective source rock in main layers has been confirmed combining the studies of sequence stratigraphy and sedimentology. Effective source rocks are well-developed in each layer, among which those in the Chijinbu Formation have the biggest thickness, and the Upper Xiagou Formation the second. In the Lower Xiagou Formation, effective source rocks are thin; however, they may increase to 250 m thick in the northern subsag, and 200 m thick in the southern subsag.关键词
有机碳含量下限值/有效烃源岩/下白垩统/营尔凹陷/酒泉盆地Key words
lowest limit of TOC content/effective source rock/lower Cretaceous/Yinger Sag/Jiuquan Basin分类
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高岗,王银会,柳广弟,陈建军,周一博,周在华,杨智明..酒泉盆地营尔凹陷有效烃源岩的确认及其展布特征[J].石油实验地质,2013,(4):414-418,425,6.基金项目
中石油玉门油田分公司科技项目“酒泉盆地东部油气富集规律与有利勘探方向”(Y2010JF8-04)资助。 （Y2010JF8-04）
