Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China
Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbo...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cheng, Bin [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Anmerkung: |
© Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 |
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| Übergeordnetes Werk: |
Enthalten in: Chinese journal of geochemistry - Springer Berlin Heidelberg, 1985, 32(2013), 4 vom: 17. Okt., Seite 347-356 |
|---|---|
| Übergeordnetes Werk: |
volume:32 ; year:2013 ; number:4 ; day:17 ; month:10 ; pages:347-356 |
| Links: |
|---|
| DOI / URN: |
10.1007/s11631-013-0642-2 |
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OLC208811484X |
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| 520 | |a Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. | ||
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10.1007/s11631-013-0642-2 doi (DE-627)OLC208811484X (DE-He213)s11631-013-0642-2-p DE-627 ger DE-627 rakwb eng 550 540 VZ 13 ssgn Cheng, Bin verfasserin aut Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. Wang, Tieguan aut Chang, Xiangchun aut Enthalten in Chinese journal of geochemistry Springer Berlin Heidelberg, 1985 32(2013), 4 vom: 17. Okt., Seite 347-356 (DE-627)130963208 (DE-600)1066729-5 (DE-576)077051459 1000-9426 nnns volume:32 year:2013 number:4 day:17 month:10 pages:347-356 https://doi.org/10.1007/s11631-013-0642-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_70 GBV_ILN_2027 AR 32 2013 4 17 10 347-356 |
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10.1007/s11631-013-0642-2 doi (DE-627)OLC208811484X (DE-He213)s11631-013-0642-2-p DE-627 ger DE-627 rakwb eng 550 540 VZ 13 ssgn Cheng, Bin verfasserin aut Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. Wang, Tieguan aut Chang, Xiangchun aut Enthalten in Chinese journal of geochemistry Springer Berlin Heidelberg, 1985 32(2013), 4 vom: 17. Okt., Seite 347-356 (DE-627)130963208 (DE-600)1066729-5 (DE-576)077051459 1000-9426 nnns volume:32 year:2013 number:4 day:17 month:10 pages:347-356 https://doi.org/10.1007/s11631-013-0642-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_70 GBV_ILN_2027 AR 32 2013 4 17 10 347-356 |
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10.1007/s11631-013-0642-2 doi (DE-627)OLC208811484X (DE-He213)s11631-013-0642-2-p DE-627 ger DE-627 rakwb eng 550 540 VZ 13 ssgn Cheng, Bin verfasserin aut Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. Wang, Tieguan aut Chang, Xiangchun aut Enthalten in Chinese journal of geochemistry Springer Berlin Heidelberg, 1985 32(2013), 4 vom: 17. Okt., Seite 347-356 (DE-627)130963208 (DE-600)1066729-5 (DE-576)077051459 1000-9426 nnns volume:32 year:2013 number:4 day:17 month:10 pages:347-356 https://doi.org/10.1007/s11631-013-0642-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_70 GBV_ILN_2027 AR 32 2013 4 17 10 347-356 |
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10.1007/s11631-013-0642-2 doi (DE-627)OLC208811484X (DE-He213)s11631-013-0642-2-p DE-627 ger DE-627 rakwb eng 550 540 VZ 13 ssgn Cheng, Bin verfasserin aut Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. Wang, Tieguan aut Chang, Xiangchun aut Enthalten in Chinese journal of geochemistry Springer Berlin Heidelberg, 1985 32(2013), 4 vom: 17. Okt., Seite 347-356 (DE-627)130963208 (DE-600)1066729-5 (DE-576)077051459 1000-9426 nnns volume:32 year:2013 number:4 day:17 month:10 pages:347-356 https://doi.org/10.1007/s11631-013-0642-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_70 GBV_ILN_2027 AR 32 2013 4 17 10 347-356 |
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10.1007/s11631-013-0642-2 doi (DE-627)OLC208811484X (DE-He213)s11631-013-0642-2-p DE-627 ger DE-627 rakwb eng 550 540 VZ 13 ssgn Cheng, Bin verfasserin aut Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. Wang, Tieguan aut Chang, Xiangchun aut Enthalten in Chinese journal of geochemistry Springer Berlin Heidelberg, 1985 32(2013), 4 vom: 17. Okt., Seite 347-356 (DE-627)130963208 (DE-600)1066729-5 (DE-576)077051459 1000-9426 nnns volume:32 year:2013 number:4 day:17 month:10 pages:347-356 https://doi.org/10.1007/s11631-013-0642-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_70 GBV_ILN_2027 AR 32 2013 4 17 10 347-356 |
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Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China |
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Cheng, Bin |
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Chinese journal of geochemistry |
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Chinese journal of geochemistry |
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eng |
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2013 |
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347 |
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Cheng, Bin Wang, Tieguan Chang, Xiangchun |
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Cheng, Bin |
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10.1007/s11631-013-0642-2 |
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550 540 |
| title_sort |
geochemical analysis of mixed oil in the ordovician reservoir of the halahatang depression, tarim basin, china |
| title_auth |
Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China |
| abstract |
Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 |
| abstractGer |
Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 |
| abstract_unstemmed |
Abstract In this study, 12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression, Tarim Basin, China. Although the density of oil samples varies considerably, based on saturated hydrocarbon gas chromatographic (GC), saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric (GC/MS) and stable carbon isotopic composition analyses, all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen, organic facies and even in oil charge history. The co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician reservoir. Moreover, according to the conversion diagram of double filling ratios for subsurface mixed crude oils, biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/96. Based on oil density and oil mix ratio, the oils can be divided into two groups: Group 1, with specific density >0.88 (g/$ cm^{3} $) and oil mix ratio >1, occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines, and Group 2, with specific density <0.88 (g/$ cm^{3} $) and oil mix ratio <1, occurring in the south of the pinchout lines. Obviously, Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to quality. It is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg 2013 |
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| title_short |
Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression, Tarim Basin, China |
| url |
https://doi.org/10.1007/s11631-013-0642-2 |
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Wang, Tieguan Chang, Xiangchun |
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