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桂中拗陷是在加里东褶皱基底上发育起来的沉积拗陷。上古生界至中三叠统,海相沉积厚逾万米。其中下泥盆统郁江阶至下石炭统,最大沉积厚度可达5500多米。地表油气显示类型多、分布广,为本区找油(气)主要目的层。然而,后期改造强烈,对油气的生成、运移、聚集和破坏有很大的影响。因此,对本区主要目的层的生油运移期与构
The Guizhong depression is a sedimentary depression developed on the Caledonian fold basement. Upper Paleozoic to Middle Triassic, sea sediment thickness of more than ten thousand meters. The Lower Devonian Yujiang River to Lower Carboniferous, the maximum deposition thickness of up to 5500 meters. Surface oil and gas show many types, widely distributed, for the region to find the main purpose of oil (gas). However, the strong reconstruction in the later period has a great impact on the formation, migration, accumulation and destruction of oil and gas. Therefore, the main purpose of the area of the oil migration period and structure