APPLICATION AND DEVELOPMENT OF PETROLEUM SYSTEM IN CHINA BASINS

In the over 20 years since the idea of petroleum system was put forward,petroleum exploration worldwide has undergone a way from risk to sense,random to system and blindness to high effect.The naissance and application of petroleum system have markedly improved exploration success ratio and become an important exploration tool.In the 1960s,petroleum geologists and explorationists in China brought forward the idea of "oil generation system".And in the following 20 years,the knowledge and theory system of "source controlling theory" and "determining depression and selecting zone" which is equivalent to petroleum system was developed,playing an important role in guiding petroleum exploration in relatively simple basins in the east of China.In the late 1980s,several innovative petroleum system concepts including "multiplex petroleum system","complex petroleum system" and "petroleum reserve unit" which are closer to Chinese basin style and characteristics were put forward based on the study of multicycle superimposed or deformed basins in the west and south of China,resulting in great discoveries in this field.Generations of Chinese petroleum workers have been exploring and practicing successively,whose experiences have enhanced the amalgamation of petroleum system with Chinese basins,making petroleum system Sinicized.