油气输导体系研究现状及存在问题的探讨

油气输导体系是油气成藏体系的必要元素,也是油气运移研究的薄弱环节。人们对于这一概念的阐述各不相同,绝大多数学者将其划分为高孔渗砂体、断层及裂缝、不整合面以及它们两两或全部的复合输导体系四种类型,目前对输导体系的研究也集中在这四种类型上。对高孔渗砂体的研究主要集中在孔隙结构、渗透率和优势运移通道上;对断层的研究主要集中在断层泥、非渗透性物质、两盘特征、断层面应力及断层活动性上;对不整合面的研究主要集中在其产状、性质、类型及岩性组合等方面。输导体系的类型划分应当以渗透率非均质性为依据,同时充分考虑烃源岩。从盆地沉积演化的角度出发研究各类输导体系的分布,也是油气运移研究领域中的薄弱环节。

Research and Discussion on the Problems of the Oil and Gas Transporting System

Oil and gas conduit system is a necessary element of the petroleum accumulation system and the weak link of hydrocarbon migration.For this concept,the person describes differently and the majority scholars divided into four types that are the high porosity,permeability sand bodies,faults and fractures,unconformities and two or all composite conduit system.The current the input conduction system is also concentrated in the four types.For study on high porosity and permeability sand body is mainly concentrated in the pore structure,permeability,and advantages of the migration pathway.The research focuses on the fault in the fault gouge,non-permeable material,two characteristics,broken on the level of stress and fault activity right.For the unconformity research,it mainly focuses on the occurrence,nature,type and lithology combination.Type of conduit system should be based on permeability heterogeneity by taking full account of the source rocks.The distribution of the various types of conduit system starting from the perspective of sedimentary basin evolution,the hydrocarbon migration is the weak link in the research field.