Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
Citation:
Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types
1 State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry, CAS, Guangzhong 510640;
2 Lanzhou Institute of Geology, CAS, Lanzhou 730000
Received Date: 1994-05-05
Publish Date:
1995-09-10
Abstract
Commercial oils drilled in most parts of the North Tarim Uplift and Central Tarim Uplift have been characterized and corn firmed as oils derived from marine Lower Paleozoic source rocks. The marine oils might have, however, originated from blask shale beds or carbonate sequences of the same age. That brings difficulties in oil-source correlation by biomaker approaches. In this paper, dibenzothiophene distributions of typical marine carbonate-sourced oils and siliciclanic sourced oils with different maturity have been studied in detail. It is revealed that the dibenzothiophene demethylation index(DDI) and dibenzothiophene methyl-isomeration index(DMI) could distinguish two types of oils effectively and suffer from little influence of maturity. According to the relative amounts of DBTS and DDI vs DMI values of Tarim oils, the major source rocks in Tarim Basin are identified as the dark and black laminated micrite and marlite deposited in the Ordovician continental shelf zone.
References
[1]
1.Goldstein T. P.，1983, Geacatalytic reaMions in formation and maturation of petroleum, AAPG Bulletin, Vol. 67,No. 1.P.152-159.
2.Hughs W. B.，1984, Use of thiophenic organosulfur compounds in characterizing crude oils derived from carbonate versussiliciclastic sources. In Petroleum Geochemistry and Source Rock Potential of Carbonate Rocks(F.dited by Palaces I. G.).AAPG Stud. Geol. 18. 181一196. Am Assoc. Pet. Geol.,Tuh;i.OK.
3.Sinninghe jeep S. 1Jamste and Jan W. Ik Leeuw, 1990,Analysis, structure and geochemical significance of or}nically boundsulphur in geosphere; State of the art and future research. In Advances of Orgpnic Geochemistry. Vol. 16.No. 5. 4^-6,P1077-1101.Peranmnn Press.
1 State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry, CAS, Guangzhong 510640;
2 Lanzhou Institute of Geology, CAS, Lanzhou 730000
Received Date:
1994-05-05
Publish Date:
1995-09-10
Abstract: Commercial oils drilled in most parts of the North Tarim Uplift and Central Tarim Uplift have been characterized and corn firmed as oils derived from marine Lower Paleozoic source rocks. The marine oils might have, however, originated from blask shale beds or carbonate sequences of the same age. That brings difficulties in oil-source correlation by biomaker approaches. In this paper, dibenzothiophene distributions of typical marine carbonate-sourced oils and siliciclanic sourced oils with different maturity have been studied in detail. It is revealed that the dibenzothiophene demethylation index(DDI) and dibenzothiophene methyl-isomeration index(DMI) could distinguish two types of oils effectively and suffer from little influence of maturity. According to the relative amounts of DBTS and DDI vs DMI values of Tarim oils, the major source rocks in Tarim Basin are identified as the dark and black laminated micrite and marlite deposited in the Ordovician continental shelf zone.
Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
Citation:
Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
1.Goldstein T. P.，1983, Geacatalytic reaMions in formation and maturation of petroleum, AAPG Bulletin, Vol. 67,No. 1.P.152-159.
2.Hughs W. B.，1984, Use of thiophenic organosulfur compounds in characterizing crude oils derived from carbonate versussiliciclastic sources. In Petroleum Geochemistry and Source Rock Potential of Carbonate Rocks(F.dited by Palaces I. G.).AAPG Stud. Geol. 18. 181一196. Am Assoc. Pet. Geol.,Tuh;i.OK.
3.Sinninghe jeep S. 1Jamste and Jan W. Ik Leeuw, 1990,Analysis, structure and geochemical significance of or}nically boundsulphur in geosphere; State of the art and future research. In Advances of Orgpnic Geochemistry. Vol. 16.No. 5. 4^-6,P1077-1101.Peranmnn Press.
Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
Wu Xhijun, Luo Binjie, Wang Youxiao, Wang Chunjiang, Meng Qianxiang, Li Yulan. Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types[J]. Acta Sedimentologica Sinica, 1995, 13(3): 98-106.
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