鄂尔多斯盆地下寺湾油田烃源岩地球化学特征  

Hydrocarbon Source Rock Geochemical Characteristics of Xiasiwan Oilfield in the Ordos Basin

作　　者：陈立军[1,2] 白峰[1] 何文忠[2] 史鹏涛[1,2] 冷丹凤[2] 

机构地区：[1]延长油田股份有限公司下寺湾采油厂,延安716106 [2]延长油田股份有限公司勘探开发技术研究中心,延安716000

出　　处：《重庆科技学院学报（自然科学版）》2012年第6期9-12,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：对下寺湾油田长4+5、长6、长7各层系进行烃源岩评价。长7层烃源岩有机碳含量高,生烃潜量和氯仿沥青"A"含量都较高,有机质主要为Ⅰ型-Ⅱ1型,为好烃源岩;长6烃源岩样品差烃源岩与好-中等烃源岩相当;长4+5烃源岩以非-差烃源岩为主,有机质类型主要为Ⅱ2-Ⅲ型。通过岩石热解和生物标志化合物方法认识到各层段烃源岩均已达成熟-高成熟阶段。Through its CHANG 4+5,CHANG 6,CHANG 7 layers Department Evaluation of source rocks,CHANG 7 layer of hydrocarbon source rocks is organic carbon content,hydrocarbon generation potential and chloroform bitumen 'A' content of higher,organic matter of typeⅠ1-Ⅱ,good hydrocarbon source rocks.Poor hydrocarbon source rocks and good-medium source rocks of CHANG 6 is quite.Hydrocarbon source rock of CHANG 4 +5 is the non-poor source rocks.Their organic matter are type II2-III.Through the recognization of rock pyrolysis Tmax(℃) and Biomarkers,the layers of source rocks have reached a mature-high mature.

关 键 词：下寺湾油田 陕北斜坡中南部 烃源岩 

分 类 号：P618.13[天文地球—矿床学]