摘要
陆相断陷盆地多期成盆、凹凸相间和多元成烃的地质特征决定了地层油藏在其中广泛发育的可能性。济阳坳陷作为陆相断陷盆地的典型代表,地层油藏的勘探经历了偶然发现、勘探突破和持续发展3个阶段,已发现的第三系地层油藏主要富集于靠近洼陷10km以内的凸起周缘鼻状构造带,其形成主要受16种不整合构建样式和断层—砂体—不整合面运聚系统的控制。在陆相断陷盆地地层油藏形成条件、济阳坳陷第三系地层油藏勘探现状及形成机制的研究基础上,结合调研结果,提出地层油藏攻关研究的3个主要方向:①不整合构建样式及展布与油气分布关系静态模型;②地层油藏形成过程与成藏模式;③地层圈闭准确描述技术。最后,提出了解决这些问题的技术思路和研究手段。
Polyphase basin-formation, and multi-origin hydrocarbon-formation in continental fault basins result in the possibility of strati-graphic reservoir development. In Jiyang Depression, one of the typical continental fault basins, stratigraphic reservoir exploration experiences three phases; occasional discovery, exploratory breakthroughs and sustained development. Stratigraphic reservoirs in Tertiary are located in nose structural belts at the margin of uplift in 10km near sag, whose formation is controlled by 16 unconformity structural styles and fault-sandbody-unconformable surface migration-accumulation system. Based on the formation condition of the stratigraphic reservoirs in continental fault basins , stratigraphic reservoir exploration situation and the formation mechanism research of Tertiary stratigraphic reservoir in Jiyang Depression, 3 main trends of the stratigraphic reservoir research are proposed with the investigation results: static model of the relation between structural style, distribution of unconformity and oil-gas distribution; forming process and forming pattern of the stratigraphic reservoirs; reservoir description technology of stratigraphic trap. Technical solution and research methods have been proposed to solve the problems.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2007年第1期1-6,共6页
Petroleum Geology and Recovery Efficiency
基金
中国石化集团公司重点攻关项目"济阳坳陷第三系不整合油气藏形成与分布规律"(P06012)的部分成果
关键词
地层油藏
成藏机理
勘探现状
研究方向
济阳坳陷
stratigraphic reservoir, reservoir-formation mechanism , research trend, present exploration situation, Jiyang Depression
