砂岩透镜体油气藏成藏动力学理论新进展  

Advance of theories on dynamics of hydrocarbon accumulation of sand lens pool

作　　者：钟俊义[1] 邱荣华[1] 漆家福[2] 林社卿[1] 熊超[1] 

机构地区：[1]中国石化河南油田分公司,河南南阳473132 [2]中国石油大学(北京)资源与信息学院

出　　处：《石油地质与工程》2008年第3期1-4,共4页Petroleum Geology and Engineering

基　　金：中国石油化工集团科技攻关项目(P06061)

摘　　要：砂岩透镜体油气藏邻近烃源岩,具有优越的成藏条件,但其成藏动力学机理远比构造油气藏复杂。从砂岩透镜体的内涵与储油机理入手,总结成藏的动力和阻力。只有成藏的动力大于阻力时,油气才能突破成藏门限临界值形成油气藏。油气成藏条件与成藏动力之间的匹配关系决定了油气成藏的阶段性。砂岩透镜体油气藏的充满程度受烃源岩的厚度与质量、构造位置、沉积类型、埋藏深度、储层物性、砂体的厚度等多种因素的影响。在油源条件优越的地区,砂岩透镜体圈闭油气充满度的关键控制因素为运移条件。Sandstone lens pools are endued with a superior setting of hydrocarbon accumulation for being adjacent to source rocks,but the mechanism of hydrocarbon accumulation is far more complex that that of the structural hydrocarbon reser- voir.Dynamic forces and resistances are summarized from the points of the connotation of sandstone lens and its mech- anism of storing hydrocarbon.Only when the dynamic forces are greater than the resistances of hydrocarbon accumula- tion,the hydrocarbon can break through the critical value of accumulation threshold to generate the oil and gas pool.The matching relationship between the factors of hydrocarbon formation and the dynamic forces of hydrocarbon accumula- tion destines the hydrocarbon formation as stage by stage. The filling extent of sandstone lens pool is subject to the thickness and quantity of source rocks,structural position, sedimentary type,burial depth,physical properties of reser- voir bed and the thickness of sandstone body.In the area where hydrocarbon source is superior,the key factor of the filling extent of sandstone lens trap is the migration setting.

关 键 词：砂岩透镜体 成藏动力学 初次运移 含油气性 

分 类 号：TE112.322[石油与天然气工程—油气勘探]