在川东地区通过地震勘探和钻探揭示这样一种地质现象:即某些背斜的地腹存在弧形逆掩断层,在断层的上、下盘都出现正向褶皱,这上下两个正向褶皱在纵向上近于迭合。为了叙述上的方便起见,根据这种构造的直观形态,把包括褶皱和断裂在内的整体称之为“套迭构造”。对一个含油气区的构造分析,不仅要探讨形成构造的动力学背景,而且还要分析构造变动的岩体结构,本文就是在发现套迭构 In the eastern part of Sichuan Province, through seismic exploration and drilling, a geological phenomenon is revealed: that is, some anticline faults are present in the abdomen of some anticlines, and positive folds occur in the upper and lower faults of the fault. The folds are close to each other in the longitudinal direction. For the sake of narrative convenience, according to the intuitive form of this structure, the whole including wrinkles and ruptures is referred to as an “overlapping structure.” The tectonic analysis of a hydrocarbon-bearing area not only explores the tectonic dynamics background, but also analyzes the structural changes of rock mass structure.