摘要
渤南洼陷是济阳坳陷深层勘探的有利地区,主要目的层系为下第三系的沙四段,目前勘探程度相对较低。对渤南洼陷深层烃源岩样品进行了有机质丰度、类型和演化程度分析,结果表明渤南洼陷沙四段烃源岩有机质丰度高,类型以I-II1型为主,处于成熟-高成熟演化阶段。通过对渤深5井、渤深4井的沙四段烃源岩和沉积相资料的分析,认为渤南地区沙四段烃源岩有机相主要为混源相和藻源相。
Bonan sub-sag is the main target of the exploration in deep beds of Jiyang depression, the 4th member of shahejie formation is the principal oil and gas generating series, and the Bonan sub-sag is still in its primary stage of exploration at present. This paper presents the organic matter content and types and maturity of organic matter in the source rocks, and reveals that there is a high carbon abundance in the source rocks in the 4th member of shahejie formation with mainly type-Ⅰ and type- Ⅲ, just situating in mature to post-mature phases. According to analysis on the sedimentary facies and source rocks of the well Boshen-4 and Boshen-5, organic facies of source rocks in the 4th member of shahejie formation were analyzed.
出处
《天然气地球科学》
EI
CAS
CSCD
2006年第1期125-128,132,共5页
Natural Gas Geoscience
基金
国家"十五"重点科技攻关课题(编号:2001BA605A09)资助
关键词
渤南洼陷
沙河街组四段
烃源岩
有机相
Jiyang depression
The fourth member of Shahejie formation
Source bed
Organic fades.
