构造作用对油气生成和运聚的重要影响

TECTONIC MOVEMENTS DOMINATE THE GENERATION AND MIGRATION OF HYDROCARBON

有机质埋藏伊始,就处于极其复杂的地球物理化学场中,环境提供的能量,一是热量,二是机械能。机械能,主要是通过机械力作用传递给系统的,另外还以机械波的形式赋予系统一定的机械能。断褶构造运动时,机械力作用水平急剧上升,经由能量的迁移转化,促成了包括机械力降解和地应力驱动等一系列的连锁反应,制造了一次次高效的成油(生运)事件。以突变论为着眼点,按照改造控制建造的思路,提出构造运动制造生排烃事件、成就含油气系统的假说。

Organic material was buried in a very complex geophysical and geochemical environment initially. Energy provided by the environment can be classified into two categories:1) thermal energy, 2) mechanical energy. Mechanical energy was transferred to an oil - bearing system mainly through the action of mechanical force, in addition, a certain amount of mechanical energy was transferred to the system in the form of mechanical wave. When rifting and folding took place, the action of mechanical force increased sharply, which caused a series of reactions including mechanical force degradation and ground stress drive, and thus lead to a sequence of oil generation events. In this paper, a hypothesis that tectonic movements caused the hydrocarbon generation and migration and the formation of oil - bearing systems is put forward.