中国石油大学学报（自然科学版）2017，Vol.41Issue(2)：39-48,10.DOI:10.3969/j.issn.1673-5005.2017.02.005
沾化凹陷三合村洼陷油气多期成藏过程研究
Study on multi-period hydrocarbon accumulation process in Sanhecun subsag of Zhanhua sag
摘要
Abstract
The dynamic process of hydrocarbon accumulation in Sanhecun subsag of Zhanhua sag was studied by analyzing the sedimentary burial history and hydrocarbon generation history,taking advantage of the abundant drillings and available test datum.The results show that the crude oil in Sanhecun subsag originated from Bonan subsag,and the crude oil can be classified into three different types.The three stages of evolution in the hydrocarbon accumulation include the Ed formation,the Ng formation and the Nm formation,respectively.The crude oil of reservoirs formed in the Ed formation originated from the matured source rocks of Es4 before the formation of the Kenxi low uplift.The crude oil from Bonan subsag migrated along the slope through fault-unconformity carrier system to Sanhecun subsag and was accumulated in the Es3 and the following strata.The reservoirs formed at this stage were thickened by curing and biodegradation in the later stage.The crude oil of reservoirs formed in the Ng formation originated from the source rocks of Es3 and Es4 after the formation of the Kenxi low uplift.The crude oil from Bonan subsag migrated along the meshwork-carpet system to Sanhecun subsag and accumulated above the Es3,and the reservoirs formed at this stage were thickened by biodegradation in the later stage.The crude oil of reservoirs formed in the Ng formation originated from the source rocks of Es3,and the crude oil also migrated through the meshwork-carpet system and accumulated in the Neogene.关键词
成藏过程/三合村洼陷/油气来源/成藏期次Key words
accumulation process/Sanhecun subsag/oil and gas source/accumulation stage分类
能源科技引用本文复制引用
张波,吴智平,王永诗,刘雅利,刘鹏..沾化凹陷三合村洼陷油气多期成藏过程研究[J].中国石油大学学报（自然科学版）,2017,41(2):39-48,10.基金项目
国家科技重大专项(2016ZX05006-003) （2016ZX05006-003）
中国石油化工股份有限公司科研攻关项目(P14017,P14009,P15082,P16005) （P14017,P14009,P15082,P16005）
