从中国含油气盆地结构看武清潜山找气前景

中国沉积盆地可分为单层结构箕状断陷型，双层结构断（陷）拗（陷）型，多层结构（地）台、断（陷）、拗（陷）型。实践证明，不论单层、双层、多层结构含油气盆地，一般说来，箕状断陷发育的中期为主要的成油期；多层结构的含油气盆地，台型构造层发育期为最佳成气期。武清潜山（泗村店）所处的冀中拗陷是典型的台、断、拗多层结构的含油气盆地，其台型构造层发育期同样是最佳气期。这一地质规律已从苏桥、刘其营潜山出气得到了证实

Analysing gas resources in Wuqing buried hills in terms of geologic structures in Chinese hydrocarbon bearing basins

Chinese sedimentary basins can be grouped into three types: 1 ) simple halfgraben-like basin, 2)dual-layer superposed basin of half graben-like basin and de pression, 3) multilayer structure basin having platform, half graben-like basin anddepression which are superposed vertically. Generally speaking, the mid period ofhalf graben-like basins in all kinds of sedimentary basins is the basic period duringwhich oil originated;while the optimal gas-originated period corresponds to platfor mal stage of multilayer structure basins.Wuqing buried hills lie in typical hydrocarbon-bearing Mid Hebei basin havingplatform,half graben-like basin and depression in the vertical direction ;the platforrnformation corresponds to the optimum gas-originated peri0d,which is evidenced bythe gas resources in Suqiao and Liuqiying buried hills. Wuqing buried hills are wor thy to be drilled indeed.