本文全面地、概括性地论述了目前中国在石油和天然气地球化学理论研究方面的现状和进展,包括非常规油气藏地球化学、油藏地球化学和天然气地球化学三个方面。其中,在非常规油气藏部分又分陆相低熟油气地球化学、高—过成熟油气地球化学(中国海相碳酸盐岩的油气生成)和煤成油气地球化学三个部分讨论。 This paper presents a comprehensive and general overview of the current status and progress of China in geophysical petroleum and natural gas research, including unconventional reservoir geochemistry, reservoir geochemistry and natural gas geochemistry. Among them, unconventional reservoirs are divided into three parts: geochemistry of continental low-mature oil and gas, geochemistry of high-over-maturity (oil and gas generation of marine marine carbonate rocks in China) and geochemistry of coal into oil and gas.