The present paper primarily deals with DTA data on organic matters in carbonate rocks. In combination with analyzes of organic carbon and bituminous substances as well as infrared absorption spectra, an explanation of...The present paper primarily deals with DTA data on organic matters in carbonate rocks. In combination with analyzes of organic carbon and bituminous substances as well as infrared absorption spectra, an explanation of the features with respect to oil-generating carbonate roeks has been made. The results are summarized as fellows: (1) If the degree of hydrocarbonization ef organic matters in carbonate rocks is high, DTA exothermic pre-peaks will be expected at lower temperatures. (2) Insoluble organic matters in carbonate rocks, would crack up into soluble organic matters (light hydroearbons) during the meso-catagenetic stage. (3) Evolution of liquid hydrocarbons produced in the preto-eatagenetic stage is recognizable during the meso-eatagenetie stage.展开更多
文摘The present paper primarily deals with DTA data on organic matters in carbonate rocks. In combination with analyzes of organic carbon and bituminous substances as well as infrared absorption spectra, an explanation of the features with respect to oil-generating carbonate roeks has been made. The results are summarized as fellows: (1) If the degree of hydrocarbonization ef organic matters in carbonate rocks is high, DTA exothermic pre-peaks will be expected at lower temperatures. (2) Insoluble organic matters in carbonate rocks, would crack up into soluble organic matters (light hydroearbons) during the meso-catagenetic stage. (3) Evolution of liquid hydrocarbons produced in the preto-eatagenetic stage is recognizable during the meso-eatagenetie stage.
