DEVELOPMENT AND APPLICATION OF STABLE CARBON IOSTOPES IN NATURAL GAS AND OIL GEOCHEMISTRY
稳定碳同位素在油气地球化学中的应用及存在的问题

With the development in modern testing and analyzing techniques, carbon isotopes have been used widely in oil and gas geochemistry. Recent advances in carbon isotope studies are summarized in this paper, which include identification of source rock type and forming-environment, the genetic type of natural gas, maturity of natural gas, the correlation of oil-gas-source, the alteration of oil and gas, the retracing of second migration of oil and/or gases, the mixing of different natural gases, the application in reservoir geochemistry. Some questions in application of carbon isotope in oil and gas geochemistry are also discussed.