摘要
为了研究南堡凹陷油气成藏规律，采用油气分布和油气运聚过程之间空间分布关系的研究方法，对其油气运聚过程及主控因素进行研究。得到不同层位油气藏的形成过程均可分为垂向输导运移和侧向分流聚集2个过程。油气垂向输导运移过程主要受到2个因素的控制：油源断裂是油气运移的主要输导通道，区域性盖层断接厚度大小控制着油气富集层位；油气侧向分流聚集过程主要受到3个因素控制：区域性盖层上下高砂地比地层有利于油气侧向分流，油源断裂附近的正向构造是油气聚集的有利部位，断裂组合方式不同导致油气富集程度不同。
In order to explore the petroleum reservoir forming laws in Nanpu Sag, the research method of the spa- cial distribution relation between the petroleum and its migration-accumulation process is adopted to study the process and their main controlling factors. The obtained processes for different horizons can be divided into two parts： vertical migration and lateral diverting accumulation. The former is mainly controlled by the following two factors ： （1）faults in the oil source rock are the principal transporting path ways for the oil and gas migration ; （2）size of the connected fault thicknesses of the regional caprock controls the enriched or accumulated positions of the pe- troleum. The latter is generally dominated by the following three factors： （1）strata with high sandstone-formation ra- tios on and beneath the regional caprock are favorable for oil and gas to migrate laterally; （2）positive structures near the faults connected with the oil source rock are prone for oil and gas to accumulate; （3）different combined forms of the faults result in the different degrees of petroleum accumulation.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2013年第1期27-32,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
国家油气重大专项（2011ZX05007）资助.
关键词
成藏过程
主控因素
油源断裂
断接厚度
正向构造
组合方式
南堡凹陷
reservoir-forming process
main controlling factor
fault in oil source rock
connected thicknesses in a fault
positive structure
combined form
Nanpu Sag
