Abstract: Based on traditional sefroleum geology,this paper deals with same new conceptions about the fact(phenomenon)that oil and gas pools are mostly distributed tonally horizontaly in many basins both at home and abroad.The author deems that in case of low thermal evolution(Ro=0.4-0.70),it is possible for humic organism to generate enough methane to form giant gas fieldss hydrodynamic conditions(fluid potential)and dextrorotation of the earth are important factors that control and affect the formation and distribution of oil and gas reservoirs.In combination with some actual basins in our country this paper also discussed the rneehanism of zonation of the oil and gas distribution.It will provide some new information and an analytical method for more reasonable deployment of the oil and gas prospecting and exploration.

摘要： 在传统的油气地质学基础上,根据国内外许多含油气盆地中油气在平面上分区分布的现象,提出一些新观点.包括,腐殖型有机质在热演化程度不高(R₀=0.4-0.7%)的情况下也可产生足以形成超大型气田的甲烷量,水动力(流体势)条件和地球右旋自转方向是控制油气藏形成和分布的重要因素.结合我国一些盆地的实际,讨论了油气在含油气盆地中分区分布形成的机理.

关键词: 油气分区分布, 腐殖型有机质生气, 水动力, (流体势)-地球右旋自转