Tectonic Kinematic Process of Chief Oil-gas Bearing Basins and the Formation of Oil-gas in China

The tectonic kinematic process of the oil-gas bearing basins is controlled by tectonic dynamic conditions.Under the conditions of different tectonic dynamic, different prototype basins were formed. On the basis of studying tectonic dynamic condition of Palaeozoic Era in Northwest China and Mesozoic-Cenozoic Era in the Chinese continent, this paper has discussed the formation and quality of different oil-gas bearing basins.The tectonic kinematic processes of the basins are of cyclicity which controls the cyclicity of the formation and development of depositon, subsidence and oil- gas generating depression center of the basins, and restricted sedimentary sequence in depression, and also limited continuous subsidence of oil-gas bearing depression which result in the formation of multistage subsidence through vertical superimposing of different prototype basins, and multistage continuous hydrocarbon - producing process of source rocks.Multiphase tectonic activity supplies the oils and gases of different epoches and various types with condition of migration, accumulation and preservation, and it is the premise for the formation of oil - gas fields with multiple sources.