南海西南部海区油气富集成藏类型分析

ANALYSIS ON THE ENRICHMENT AND ACCUMULATION TYPES OF HYDROCARBON IN THE SOUTHWESTERN SEA AREA OF THE SOUTH CHINA SEA

刘宝明 夏斌 刘振湖 王衍棠

LIU Baoming XIA Bin LIU Zhenhu WANG Yantang

中国科学院, 广州地球化学研究所, 广东, 广州, 510640 2. 国土资源部, 广州海洋地质调查局, 广东, 广州, 510760

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China 2. Guangzhou Marine Geological Survey, Ministry of Land & Resources, Guangzhou, Guangdong 510760, China

该区位于南海南部板块、陆块的碰撞、俯冲、增生部位。作者在区域地质构造背景和区域地层对比研究的基础上,划分了多种类型圈闭和5种与之有关的油气藏类型。根据盆地模拟和含油气系统的研究成果,作者对各种类型油气藏特征和成藏因素及其勘探前景作了分析,指出了与已发现油气田相类似的油气藏类型的成藏时代和有利分布区,可为油气勘探提供科学依据。

The study area is located on the collision, underthrusting and accretion parts of plates and landmasses in the southern part of the South China Sea. Based on the stuey of regional geologic structural background and regional stratigraphic correlation, some kinds of traps and five kinds of related reservoirs were classified. Accor ding to the results from basin simulation and petroleum system research, the characteristics, pool-forming factors and exploration prospects of each type of reservoirs were analysed, and the pool-forming times and favorable distribution areas of the reservoir types similar to the oil and gas fields found were pointed out. This will provide scientific bases for hydrocarbon exploration.

中国科学院创新工程项目(KZCX2-SW-117);国家“126”专项课题(HY126-03-13-03)

https://doi.org/10.11781/sysydz200204322