Genetic Type and Distribution of the Oils in Lishu Fault Depression, Songliao Basin
详细信息
- 责任者：Zhang Jun (Research Institute of Petroleum Exploration and Development ; SINOPEC ; Beijing 100728 ; China) ; Zhang Min
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(1)
- 关键词：断陷盆地 ; fault-downwarping basins ; 原油 ; crude oil ; 松辽平原 ; Songliao Plain
- 页码：p.116-122
- 图表：illus., 2 tables, 14 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Based on GC and GC-MS analyses of bulk crude oil and source rock samples in different regions and layers of Lishu Fault Depression,the geochemical characteristics of crude oil and source rocks were systematically studied.According to different composition characteristics of the biomarkers,the crude oils in the Lishu Fault Depression were divided into three genetic types.The GroupⅠ,mainly distributed in the southeastern slope belt and Siwujiazi oilfield,were characterized by high C24-tetracyclic/C26-tricyclic terpanes ratios,and low tricyclene/pentacyclictriterpane,gammacerane/C30-hopane,Ts/Tm,C29Ts/C29 norhopane,C30 diahopane/C30-hopane and C29ββ/(ββ+αα)ratios;The GroupⅡ,mainly found in the northern slope belt,have low C24-tetracyclic/C26-tricyclic terpanes value,and high tricyclene/ pentacyclictriterpane,gammacerane/C30-hopane,Ts/Tm,C29Ts/C29 norhopane,C30 diahopane/C30-hopane and C29ββ/(ββ+αα) ratios.The Group Ⅲ,mainly located in the central structural zone and seven tree synclinore zone,display the intermediate chemical compositions between the GroupⅠand Group Ⅱ oils.Combined with the physical properties of crude oils,geochemical indicators to different types of crude oil are established,and the genesis and sources of crude oil were defined.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |