摘要
层序地层学以层序为单位研究盆地充填样式、充填结构、沉积体系以及岩相在三维空间的展布 ,为石油地质综合研究提供了一个可预测形成油气藏的地质要素分布规律的层序格架 ,在这个格架中油气的分布有一定规律。密集段特别是复合密集段是层序格架中烃源岩发育的最有利部位 ,当几个层序的密集段在三维空间中横向拼合、纵向叠置、彼此紧密相邻时 ,常会产生有利于形成大油气田的条件。在一个完整的层序中 ,各体系域均有形成储集层的潜力 ,但它们在油气成藏中所起的作用是有区别的。据对松辽盆地南部梨树—德惠凹陷主要含油气井段的层序分析 ,有 81.3%的油气段分布在低水位体系域 ,表明低水位体系域在油气勘探中有着特殊重要的意义。
Sequence stratigraphy provides a framework which can be used to predict the distribution of geologica l elements of reservoir forming for explorers, and in which the distribution of oil and gas has a certain disciplinarian. The condensed section, especially the composite condensed section is the best place for formation of source rocks, and condensed section complex is favorable to form large reservoir. All of system t racks in the sequence have the potential of oil bearing, but they play differe n t roles in the forming of reservoirs. It is believed that LST has an important s ignificance in oil and gas exploration.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2000年第5期40-43,共4页
Petroleum Exploration and Development
关键词
油气勘探
层序格架
油气成藏
烃源岩
深积体系
S equence stratigraphy, Sequence framework, Oil and gas exploration, Lower system track, Oil and gas dis tribution, Reservoir formation
