LI Jing gui. Research Development and Prospect of Maturity Parameters of Methylated Dibenzothiophenes in Marine Carbonate Rocks[J]. Acta Sedimentologica Sinica, 2000, 18(3): 480-483.
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LI Jing gui. Research Development and Prospect of Maturity Parameters of Methylated Dibenzothiophenes in Marine Carbonate Rocks[J]. Acta Sedimentologica Sinica, 2000, 18(3): 480-483.
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Research Development and Prospect of Maturity Parameters of Methylated Dibenzothiophenes in Marine Carbonate Rocks
- Received Date: 1999-04-21
- Rev Recd Date:
2000-03-27
- Publish Date:
2000-09-10
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Abstract
Thermal maturity is a necessary parameter in assessing source rocks and evolution of oils and gases in sedimentary basins. It is shown from the investigations of over the past twenty years that the maturity parameters of methylated dibenzothiophenes are expected to be the efficient molecular maturity indices of marine carbonate source rocks and their oils or gases at high and overmature stages. It has been an unsolved problem up to now to create relationship between methylated dibenzothiophene maturity parameters and Ro values of carbonate source rocks (converted from solid bitumen reflectance-Rb, or marine vitrinite reflectance-R M o) at high and overmature stages. The creation of the above relationship will provide a more reliable new method for calculation of oils and gases Ro values, as well as for oil-source or gas-source correlation of Lower Palaeozoic and Middle-Upper Proterozoic carbonate source rocks. Therefore, it has broader and brighter application prospects in guiding future oils and gases exploration of marine strata in chima.
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