Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
Citation:
Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen
Lanzhou Institute of Geology, Chinese Academy of audiences, Lanzhou 730000
Received Date: 1995-12-01
Publish Date:
1996-12-31
Abstract
In this paper the hydrogen isotope compositions of methane, crude as well as light oils and kerogen and their relationship with the depositional environments and the maturity of source rocks were discussed in detail. The hydrogen isotope compositions of methane are mainly related to depositional environments of source rocks. Methane of terrestrial fresh water environments has lighter hydrogen isotope compositions, and that of brackish to salt water environments has heavier hydrogen isotope compositions. Simultaneously, the hydrogen isotope compositions of methane are also related to the maturity of source rocks, i. e., with the increasing maturity of source rocks, the δD of methane becomes heavier. When using the δD of methane to differentiate depositional environments of source rocks, the effect of the maturity of source rocks on the δD of methane should be considered. The hydrogen isotope compositions of crude and light oils are mainly related to depositional environments of source rocks. Oils derived in fresh water environments have lighter δD, and those in brackish to salt water environments have heavier δD. The hydrogen isotope compositions of kerogen are also controlled by depositional environments, i. e., kerogens derived from fresh water environments have lighter δD,and those from brackish to salt water environments have heavier δD.
8.Epstein S. Yapp C J and Hall ] H. The determination of the D/H ratio of non-exchangeable hydrogen in cellulose ex-traded from aquatic and land plants. Earth planet. Sci. Lett.，1976. 30: 241-251.
9.Estep M F and Hoering T C. The organic geochemistry of the stable hydrogen isotopes. In; Short Papers of the 14th International Conference on Geochronology, Cosmochronology. Isotope Geology 1978 (ed.R.E. 7arttnam). U. S. Ge-ological Survey Open File Report 78-701，1978. 108-109.
10.Estep M F and T C Hoering. Biogeochemistry of the stable hydrogen isotopes. Geochim. Cosmochim. Acta.，1980.44:1197-1206.
11.Hoering T C. The stable isotopes of hydrogen in Precambrian organic matter. In; Chemical Evalution of the Early Pre-cabrian (ed.Ponamperuma).1977.81-86. Academin Press.
12.Rigby D et aL The effect of maturation on the isotopic composition of fossil fuels. Org. Geochem. 1981.3:29-36.
13.Robert F. Hydrogen isotope composition of insoluble organic matter from cherts. Geochim. Cosmochim. Acte. 1989.53:453-460.
14.Schidlowski M. J M Hayes and 1 R Kaplan. Isotopic inferences of ancient bloc emistries: carbon. nitrogen. hydrogen and sulfur. 1n: Earth's Earliest Biosphere: Its Origen and Evolution (ed. J W Schope). Chap 7. Princeton Univ,Press. 1983. 149-185.
15.SchoeV M. The hydrogen and carbon isotopic composition of methane Irom natural gases of various origins. Geochim.Cosmochim. Acta. 1980. 44:649-661.
16.SchoeV M. Recent advances in Petroleum isotope geochemistry. (kg. Geochem. 1984. 6:645-663.
17.Smith J W, et al. The stable isotope geochemistry of Australian coals. Org. Geochem. 1982. 3:111-131.
18.Yapp C J and S Epstein. A reexamination of cellulose carbonbound hydrogen measurements and some factors affect-ing plant一water D/H relationships. Geochem. Cosmochem. Acte. 1982. 46:955-965.
19.Yen H and S Epstein. Hydrogen and carbon isotopes of petroleum and related organic matter. Geochim. Cosmochim.Acta. 1981，45:753-762.
Abstract: In this paper the hydrogen isotope compositions of methane, crude as well as light oils and kerogen and their relationship with the depositional environments and the maturity of source rocks were discussed in detail. The hydrogen isotope compositions of methane are mainly related to depositional environments of source rocks. Methane of terrestrial fresh water environments has lighter hydrogen isotope compositions, and that of brackish to salt water environments has heavier hydrogen isotope compositions. Simultaneously, the hydrogen isotope compositions of methane are also related to the maturity of source rocks, i. e., with the increasing maturity of source rocks, the δD of methane becomes heavier. When using the δD of methane to differentiate depositional environments of source rocks, the effect of the maturity of source rocks on the δD of methane should be considered. The hydrogen isotope compositions of crude and light oils are mainly related to depositional environments of source rocks. Oils derived in fresh water environments have lighter δD, and those in brackish to salt water environments have heavier δD. The hydrogen isotope compositions of kerogen are also controlled by depositional environments, i. e., kerogens derived from fresh water environments have lighter δD,and those from brackish to salt water environments have heavier δD.
Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
Citation:
Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
8.Epstein S. Yapp C J and Hall ] H. The determination of the D/H ratio of non-exchangeable hydrogen in cellulose ex-traded from aquatic and land plants. Earth planet. Sci. Lett.，1976. 30: 241-251.
9.Estep M F and Hoering T C. The organic geochemistry of the stable hydrogen isotopes. In; Short Papers of the 14th International Conference on Geochronology, Cosmochronology. Isotope Geology 1978 (ed.R.E. 7arttnam). U. S. Ge-ological Survey Open File Report 78-701，1978. 108-109.
10.Estep M F and T C Hoering. Biogeochemistry of the stable hydrogen isotopes. Geochim. Cosmochim. Acta.，1980.44:1197-1206.
11.Hoering T C. The stable isotopes of hydrogen in Precambrian organic matter. In; Chemical Evalution of the Early Pre-cabrian (ed.Ponamperuma).1977.81-86. Academin Press.
12.Rigby D et aL The effect of maturation on the isotopic composition of fossil fuels. Org. Geochem. 1981.3:29-36.
13.Robert F. Hydrogen isotope composition of insoluble organic matter from cherts. Geochim. Cosmochim. Acte. 1989.53:453-460.
14.Schidlowski M. J M Hayes and 1 R Kaplan. Isotopic inferences of ancient bloc emistries: carbon. nitrogen. hydrogen and sulfur. 1n: Earth's Earliest Biosphere: Its Origen and Evolution (ed. J W Schope). Chap 7. Princeton Univ,Press. 1983. 149-185.
15.SchoeV M. The hydrogen and carbon isotopic composition of methane Irom natural gases of various origins. Geochim.Cosmochim. Acta. 1980. 44:649-661.
16.SchoeV M. Recent advances in Petroleum isotope geochemistry. (kg. Geochem. 1984. 6:645-663.
17.Smith J W, et al. The stable isotope geochemistry of Australian coals. Org. Geochem. 1982. 3:111-131.
18.Yapp C J and S Epstein. A reexamination of cellulose carbonbound hydrogen measurements and some factors affect-ing plant一water D/H relationships. Geochem. Cosmochem. Acte. 1982. 46:955-965.
19.Yen H and S Epstein. Hydrogen and carbon isotopes of petroleum and related organic matter. Geochim. Cosmochim.Acta. 1981，45:753-762.
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Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
Wang WanChun. Geochemical Characteristics of Hydrogen Isotopic compositions of Natural Gas, oil and Kerogen[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 131-135.
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