构造应力演化的定量模拟方法

构造应力演化研究是盆地模拟的重要环节，各期次构造应力分布情况决定了油气运移的方向．本文提出的构造应力演化的系统模拟方法，首次将运动学研究和构造动力学模拟有机相结合，由运动学研究提供初始模型和边界条件．排除了边界条件的任意性。耦合自重应力场和构造应力场的综合影响，以苏北溱潼凹陷为例，模拟了该区构造应力演化的发展过程，对油气勘探有重要指导意义。

THE METHOD OP QU ANTITAT IVE SIMU LATION OF STRUCTURAL STRESS EVOLUTION

Study of stress evolution is a key link of basin simulation,the distribution of stress at each stase decidedthe migratory direction of petroleum and natural gas. SystematiCally analogous method raised in this paper eliminates arbitrary of boundary counditions because kinematic study and structural dynamic simulation havebeen studied jointly for the first time and kinematk research provides initial models and boundary counditions. By strdying synthetically the mutual effect of gravitational field and structural stress field,taken Qintong depression in the northern jiangsu as an example,the process of structural stress evolution in this region has been simulated,it is of momentous guidable significance for further propecting of petroleum and natural gas.