渤海湾盆地冀中坳陷霸县凹陷深层沙四段源岩有机相评价及意义  

Orgaofaices evolution of deep Es source rock in Baxian Sag,Jizhong Depression of Bohai Bay Basin and its significance

作　　者：崔永谦 王飞宇[2] 张传宝 冯伟平 侯凤香 马学峰 马樱 CUI Yong-qian;WANG Fei-yu;ZHANG Chuan-bao;FENG Wei-ping;HOU Feng-xiang;MA Xue-feng;MA Ying(PetroChina Huabei Oilfield Company,Renqiu 062552,China;College of Geosciences,China University of Petroleum,Beijing 102200,China;Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China)

机构地区：[1]中国石油华北油田公司,河北任丘062552 [2]中国石油大学(北京)地球科学学院,北京102200 [3]中国地质科学院地质力学研究所,北京100081

出　　处：《天然气地球科学》2021年第1期38-46,共9页Natural Gas Geoscience

基　　金：中国石油天然气股份有限公司重大科技专项(编号:2014E-35、2017E-15);国家科技重大专项专题(编号:2017ZX05008-006-002-005);国家科技重大专项专题(编号:2017ZX05007001-003)联合资助。

摘　　要：渤海湾盆地冀中坳陷霸县凹陷沙四段烃源岩为凹陷深层油气的主要来源,对沙四段不同有机相源岩进行定量描述有助于理解深层油气成藏过程。沙四段源岩有机相包括C、D/E和F相,其中C相源岩厚度较薄,总体上小于40 m,沙四段主要以D/E相和F相源岩为主,D/E相源岩厚度介于50~250 m之间。凹陷中钻揭的沙四段源岩镜质体反射率最大值为1.27%,处于成熟阶段晚期。黄金管热模拟实验标定3种有机相源岩的生烃动力学参数表明,C相、D/E相和F相源岩依次进入成熟阶段,但C相源岩在150℃时生烃转化率已经到达90%左右,进入深层(大于150℃),D/E相和F相源岩仍有较大的生烃潜力,且主要以凝析油气和湿气为主。The Es4 source rock is the main hydrocarbon source for the hydrocarbon in the deep reservoirs in Baxian Sag,Jizhong Depression,Bohai Bay Basin,and quantitative description of Es4 source rock is useful for understanding the hydrocarbon generation and accumulation in the deep basin. The Es4 source rock contains organofacies C,D/E and F,of which the thickness of organofacies C is relatively thin,generally less than 40 m,and is between 50 m and 250 m for organofacies D/E. The maximum ROof the drilled Es4 source rock is1.27%,which is in the late stage of maturity. The kinetic parameters for three organofacies source rock have been obtained from gold tube pyrolysis simulation. The result indicated that organofacies C,D/E and F source rock entered into the mature level in turn,but the transformation will reach about 90% for the organofacies at150 ℃. The hydrocarbon generation potential is still significant for organofacies D/E and F,and is mainly dominated by condensate and wet gas.

关 键 词：霸县凹陷 倾气型源岩 深层油气 天然气 凝析油 

分 类 号：TE121.15[石油与天然气工程—油气勘探]