计算生油气量的C—K法

有机碳－干酪根法（简称Ｃ－Ｋ法），是以油气成因的干酪根热降解动力学理论为核心的计算生油气量的新方法。使用了地质温度计－－镜煤反射率，将有机质及原油的热演化过程划分类一个阶段：Ⅰ－－低成熟阶段；Ⅱ－－高成熟阶段；Ⅲ－－过成熟阶段。以不同的学者的模拟实验为参考，综合分析了含油气区生油气层的沉积相，有机地球化学相条件，确定了不同生油气层有机碳（Ｃ）与原始干酪根（Ｋｏ）（未成熟的干酪根）的比例关系，从而建

THE C-K CALCULATION METHOD OF OIL FORMATION

The organic carbon kerogen method(C K method)is a new calcuiation method of oil formation basing upon the kerogen thermal degradation dynamic theory,By the geothermometer vitrite reflectivity,the themal evolution of organic material and raw oil is divided into 3 stages:1 low maturity;2 high maturity and and 3 excess maturity.According to different simulated tests,the conditions of sedimemtary facies and organic geochemi cal facies of oil formation beds in an oil field are comprehenaively anslyzed,the ratio between organic C and original kerogen in different oil formation beds is determined,a calculation fomula of oil formation is set up and its effectively application in the calculation of oil formation and coalbed methane is introduced in this paper.