油气二次运移研究进展述评

A review of the advances in the study of secondary oil-gas migration

油气运移,尤其油气的二次运移是石油地质学研究的重要内容,同时也是一个薄弱环节。20世纪90年代以来,油气二次运移研究所取得的主要进展是:①对油气二次运移机理的认识有了很大提高;②油气二次运聚模拟实验设计更加科学,实验结果更为可信;③油气二次运聚数值模拟水平有了长足进步。深入的综合研究和油气运移聚集的三维可视化模拟是今后的研究方向。

Petroleum migration, especially secondary petroleum migration, is an important content in the study of petroleum geology and yet a weak link. Since the 1990s, the following major advances in this area have been made： ① a much better understanding of the mechanism of secondary oil-gas migration and accumulation has been got; ② the design of modeling experiments or lab devices for secondary petroleum migration and accumulation is more scientific, and thus the experimental results are more believable; and ③ great progress in numerical simulation of secondary oil-gas migration and accumulation has been made. In-depth, integrated study and 3-D visualization simulating based on detailed geological investigation of secondary off-gas migration and accumulation are the direction for the future study of this respect.