摘要
Organic-inorganic interaction exists universally and is important in the process of mineral resources formation. It is the essential reason why organic oil, gas, coal and inorganic uranium coexist, accumulate, and mineralize in the same sedimentary basins. Hydrocarbon-generating simulation experiment was conducted using low-mature hydrocarbon source rock containing kerogen type III with uranium (UO2CO3 solution) added to study the effects of uranium on the hydrocarbon generation of hydrocarbon source rocks. Experiment results show that uranium can enhance the yield of gas hydrocarbon, promote the total gas output, and increase the total hydrocarbon production (mass or volume). Uranium may lower the hydrocarbon generation threshold temperature and lead to the generation of liquid hydrocarbon in the relative low temperature of hydrocarbon source rock. Uranium can enhance the yield of saturated hydrocarbon, promote the low molecular weight hydrocarbons generating, and in turn increase the content of CH4 and the content of dry gas of the generated hydrocarbons. Uranium is one of the potential inorganic accelerating factors of the immature hydrocarbons.