The geochemical evidences of sulphur oil sources in the BZ35/36 structures of the Huanghekou Sag, Bohai Bay Basin, China

作     者：Qiang Fu Binbin Liu Chengmin Niu Shijie Zhao 

作者机构：State Key Laboratory of Marine GeologySchool of Marine and Earth ScienceTongji UniversityShanghai200092China Tianjin Branch of Exploration and Development Research InstituteCNOOC(China)co.LTDTianjin300452China 

出 版 物：《Petroleum Research》 (石油研究（英文）)

年 卷 期：2019年第4卷第2期

页      面：164-172页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Tianjin branch of Exploration and Development Research Institute China National Offshore Oil Corporation, CNOOC State Key Laboratory of Marine Geology state science and technology 

主　　题：Bohai Bay Basin Huanghekou sag Sour crude oil Biomarker Hydrocarbon charging 

摘      要：Crude oils in the BZ35/BZ36 fields found within the Paleogene Dongying and Shahejie formations in the Huanghekou Sag of the Bohai Bay Basin,China have generally high density,viscosity,and sulfur *** physical properties and geochemical features have obvious differences when compared with crude oils from other structures within the Huanghekou *** comparison and analysis of biomarkers(e.g.,pristine/phytane,gammacerane,C24Te/C26TT,C2920S/(20Sþ20R),C29bb/(bbþaa),etc.)show that sour crude oil from the BZ35/BZ36 fields is similar to the sour oil in the Miaoxi Sag adjacent to the eastern of Huanghekou ***,low maturity oils in the Miaoxi Sag have likely migrated southwest,while the sweet,higher maturity oils in the Huanghekou Sag have migrated *** oils generated from these two sags have focused in the BZ35/BZ36 *** source rock of the sour crude oil was most likely formed in a dry climate and strong reducing saline lake.