摘要
盆地范围内宏观的输导体系研究是开展油气预测的基础,也是开展成藏机理研究的重要前提。以东营凹陷为例,从已发现油藏的分布出发,详细介绍了盆地范围内输导体系宏观格架的建立过程,并对其构成特征进行了系统分析。初步分析结果表明:东营凹陷不同层系油藏平面分布具有相似性和组合性,明显地受输导体系构成方式的控制。输导体系的构成横向上具有分带性,不同构造带输导体系构成有明显的差异;纵向上具有组合性,不同层系相似的沉积体系组合决定了输导体系的组合性;输导体系的类型和分布特征决定了油藏的类型和空间组合。断裂、砂体和不整合面对油气运聚的控制作用不同,同一类型不同成因输导体系的输导性能具有差异性,不同类型输导组合的输导机理和运聚效率不同。
The research on the macroscopic transportation system in basin is the basis for reservoir forecasting and the precondition for the research of reservoir-forming mechanism. The up building process of the macroscopic framework of the transportation system in the basin is particularly introduced and the constitution characteristics are systematically analyzed from the distribution of reservoir. The reservoir distributions in different series of strata in Dongying Sag are of comparability and combination, and they are obviously controlled by the constitution mode of transportation system. The transportation system is of zoning laterally and combination vertically, and is different in different tectonic zones. The similar sedimentary system assemblage leads to the vertical combination of transportation system. The types and distribution of the transportation system determine the types and spatial combinations of the reservoirs. The fault, sand body and unconformity have effects on the migration and accumulation of oil and gas. The same type transportation body but of different origins has different transportation ability. Different transportation system combinations have different transportation mechanisms as well as migration and accumulation efficiencies.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2006年第4期474-478,共5页
Petroleum Exploration and Development
基金
中国石油化工股份有限公司科研项目"东营凹陷输导体系与勘探方向"(P04028)
关键词
输导体系
油藏分布
格架
油气运聚
transportation system
reservoir distribution
framework
hydrocarbon migration and accumulation
