摘要
以现有研究成果为基础,综合利用钻井、地震等资料,对文莱-沙巴盆地构造演化和沉积充填特征进行了研究,重点分析了文莱-沙巴盆地烃源岩、储集层和盖层等油气地质特征和成藏条件。研究认为,文莱-沙巴盆地新生代经历了始新世-早中新世的俯冲增生期和中中新世-第四纪的快速沉降期2个构造演化阶段,其中始新世-早渐新世发育滨浅海-浊积扇-半深海-深海沉积体系,早中新世主要发育三角洲-滨浅海-半深海-深海沉积体系,中中新世-第四纪发育三角洲-滨浅海-半深海-深海-浊积扇沉积体系。文莱-沙巴盆地发育煤系和陆源海相烃源岩2类烃源岩、主要发育中中新统和上中新统2套储层、发育层间局部盖层缺乏区域性盖层,发育2套自生自储型成藏组合。文莱-沙巴盆地深水区的逆冲推覆带是下一步有利的勘探区带。
Based on previous research,utilizing drilling and seismic data,the author studies the features of tectonic evolution and depositional filling in Brunei-Sabah Basin. This article mainly analyzes the oil and gas geologic features and reservoir-forming condition of the source rock,reservoir stratum and cap rock in this Basin. It suggests that Brunei-Sabah Basin has experienced the Dive hyperplasia period of Eocene epoch-Early Miocene and quick subsidence period of Middle Miocene-Quaternary. In the Eocene-early Oligocene,shore shelf,turbidite fan,bathyal region and Deep-sea deposit developed; in Early Miocene,delta,shore shelf,bathyal region and Deep-sea deposit developed; in Miocene-quaternary,delta,shore shelf,bathyal region,Deep-sea and turbidite fan deposit developed. The development of coal measures and terrigenous marine facies source rock in Brunei-Sabah Basin mainly developed in Middle Miocene and Upper Miocene reservoirs. Due to the lack of regional seal,it developed two sets of auto-product and auto-reservoir assemblages. Thrust and nappe tectonic belt in the Deepwater Horizon Brunei-Sabah Basin is one of the favorable belts in future exploration.
出处
《科学技术与工程》
北大核心
2018年第4期29-34,共6页
Science Technology and Engineering
基金
国家自然科学基金重大研究计划(91528303)
国家科技重大专项(2016ZX05026)资助
关键词
文莱-沙巴盆地
构造-沉积充填演化
油气地质特征
成藏条件
Wenlai-Shaba Basin
tectonics and sedimentary filling evolution
petroleum geology reservoir
forming conditions
