摘要
通过大量的碳酸盐岩盆地、储层、油气资源量方面的资料收集、总结分析,以显生宇的系为地层单位研究了全球六大油气富集区碳酸盐岩储层及油气资源量的分布特征。中东—欧洲油气区储层主要发育在中生界侏罗系和白垩系;中亚—俄罗斯油气区储层主要分布于上古生界;北美油气区储层主要分布于上古生界;非洲油气区储层主要分布在白垩系及新生界;南美油气区储层主要分布在白垩系;亚太—中国油气区的中国地区储层主要分布在下古生界,而南亚太平洋地区储层则分布于新生界。碳酸盐岩储集岩可以分为石灰岩、白云岩、白垩3种类型,其中以石灰岩及白云岩为主。地质时代越老白云岩储层越多,地质时代越年轻石灰岩储层越多。另外,储层受控于沉积相类型,在高能的滩相以及由泻湖、潮坪等环境形成的白云岩储层最发育;生物建造的储层为最好的油气储集岩体。碳酸盐岩油气资源区域展布受控于盆地的分布。在层系上以白垩系最多,油气资源集中分布在石炭系—新近系,其中石油资源以白垩系最多,天然气以二叠系和白垩系最多,另外在石炭系、侏罗系、古近系均有丰富的油气资源。
Based on statistics and integrate analysis of data on carbonate basins in the world, we discuss characteristics of carbonate reservoirs, distribution of petroleum resources in different geologic periods in six regions of enriched oil and gas. High quality reservoirs in Middle East-European region, Central Asia- Russia-North America, Africa, South America, China-Asia Pacific region, and South Asia-Pacific region are distributed in Jurassic-Cretaceous, upper Paleozoic, Cretaceous-Cenozoic, Cretaceous, lower-Paleozoic, and Cenozoic, respectively. Three types of reservoir lithology are limestone, dolomite and chalk,in which lime- stone and dolomite are dominant. The older age the reservoir is, the larger proportion the dolomite is;but the younger age the reservoir is, the larger proportion the limestone is. Distribution of reservoirs is con- trolled by deposited facies. The particles beaches, tidal flat and lagoon are profitable to form the dolomite. The deposited facies for high quality reservoir formation is bioconstructed. Distribution of petroleum resources is controlled by carbonate space. Most of petroleum resource is distributed from Carboniferous to Tertiary,the oil is dominated in Cretaceous,the gas is Permian and Cretaceous. Additionally,the abundant petroleum resources are also disturbed in Carboniferous,Jurassic and Paleocene.
出处
《天然气地球科学》
EI
CAS
CSCD
北大核心
2012年第4期748-755,共8页
Natural Gas Geoscience
基金
国家重点基础研究发展规划("973")项目(编号:2006CB202300)资助
关键词
碳酸盐岩
油气富集区
储层特征
油气资源量
分布特征
Carbonatite
Petroleum enriched region
Reservoir characteristics
Petroleum resources
Petroleum distribution
作者简介
余宽宏（1983-），男，四川广元人，博士研究生，主要从事沉积学及储层地席学研究．E—mail：yukuanhong1983@126.com
