黄海海域地质构造特征及其油气资源潜力

综合前人的研究成果,利用2000年以来在黄海采集的综合地球物理资料,结合我国及邻国在该海域的钻井成果,分析和讨论了黄海地区从古生代至新生代的构造演化历史;对南、北黄海沉积盆地形成的构造背景和盆地的构造类型进行了研究,认为在古生代它们是台地相沉积,中生代和新生代是张裂盆地;通过对我们采集的地震剖面之分析和研究,认为盆地中的中生界和古近系发育了良好的烃源岩,新近系发育了良好的区域盖层,储层在盆地中普遍发育。因此,在南、北黄海沉积盆地中可以找到中、小型油气田。另外,对盆地中的古生界应加强研究,在保存较好并且中新生代沉积较薄的地方做探查工作,应该有一定的油气前景。

THE GEOTECTONIC CHARACTERISTICS AND THE PETROLEUM RESOURCES POTENTIAL IN THE YELLOW SEA

On the basis of previous data,using comprehensive geophysical data collected in the Yellow Sea since 2000 and together with drilling data from China and neighboring countries,we probed and discussed the tectonic evolution history of the sea from Paleozoic to Cenozoic and studied the tectonic background of the formation of the sedimentary basins and the tectonic types of the sedimentary basins in the Yellow Sea.We believe that there were platform sediments in the Paleozoic and the rifting depression sediments from Mesozoic to Cenozoic in the Yellow Sea area.According to the researches on the seismic data,we recognize that there exist good hydrocarbon rocks from Paleozoic,Mesozoic to Cenozoic,and good caprocks in Neogene and Quaternary.The reservoir rocks were widespread in the sedimentary basins.Therefore,we believe that we should explore the Mesozoic and Cenozoic in the Yellow Sea for oil.However,we should also research the Paleozoic in the sedimentary basins,and focus on the places where preserved good and overlying sediments are thin,as these places have good petroleum resources.