C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography
The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs)...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chang, Xiangchun [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Iterated Gilbert mosaics - Baccelli, Francois ELSEVIER, 2019, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:157 ; year:2017 ; pages:223-231 ; extent:9 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.petrol.2017.07.043 |
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| Katalog-ID: |
ELV020368674 |
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| 245 | 1 | 0 | |a C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography |
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| 520 | |a The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. | ||
| 520 | |a The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. | ||
| 650 | 7 | |a Depositional environment |2 Elsevier | |
| 650 | 7 | |a Light hydrocarbon |2 Elsevier | |
| 650 | 7 | |a Two-dimensional gas chromatography |2 Elsevier | |
| 650 | 7 | |a Source input |2 Elsevier | |
| 650 | 7 | |a Thermal maturity |2 Elsevier | |
| 650 | 7 | |a Halahatang oilfield |2 Elsevier | |
| 700 | 1 | |a Shi, Bingbing |4 oth | |
| 700 | 1 | |a Han, Zuozhen |4 oth | |
| 700 | 1 | |a Li, Tiantian |4 oth | |
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10.1016/j.petrol.2017.07.043 doi GBV00000000000356.pica (DE-627)ELV020368674 (ELSEVIER)S0920-4105(17)30592-2 DE-627 ger DE-627 rakwb eng 510 VZ 31.70 bkl Chang, Xiangchun verfasserin aut C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography 2017transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. Depositional environment Elsevier Light hydrocarbon Elsevier Two-dimensional gas chromatography Elsevier Source input Elsevier Thermal maturity Elsevier Halahatang oilfield Elsevier Shi, Bingbing oth Han, Zuozhen oth Li, Tiantian oth Enthalten in Elsevier Science Baccelli, Francois ELSEVIER Iterated Gilbert mosaics 2019 Amsterdam [u.a.] (DE-627)ELV008094314 volume:157 year:2017 pages:223-231 extent:9 https://doi.org/10.1016/j.petrol.2017.07.043 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.70 Wahrscheinlichkeitsrechnung VZ AR 157 2017 223-231 9 |
| spelling |
10.1016/j.petrol.2017.07.043 doi GBV00000000000356.pica (DE-627)ELV020368674 (ELSEVIER)S0920-4105(17)30592-2 DE-627 ger DE-627 rakwb eng 510 VZ 31.70 bkl Chang, Xiangchun verfasserin aut C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography 2017transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. Depositional environment Elsevier Light hydrocarbon Elsevier Two-dimensional gas chromatography Elsevier Source input Elsevier Thermal maturity Elsevier Halahatang oilfield Elsevier Shi, Bingbing oth Han, Zuozhen oth Li, Tiantian oth Enthalten in Elsevier Science Baccelli, Francois ELSEVIER Iterated Gilbert mosaics 2019 Amsterdam [u.a.] (DE-627)ELV008094314 volume:157 year:2017 pages:223-231 extent:9 https://doi.org/10.1016/j.petrol.2017.07.043 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.70 Wahrscheinlichkeitsrechnung VZ AR 157 2017 223-231 9 |
| allfields_unstemmed |
10.1016/j.petrol.2017.07.043 doi GBV00000000000356.pica (DE-627)ELV020368674 (ELSEVIER)S0920-4105(17)30592-2 DE-627 ger DE-627 rakwb eng 510 VZ 31.70 bkl Chang, Xiangchun verfasserin aut C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography 2017transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. Depositional environment Elsevier Light hydrocarbon Elsevier Two-dimensional gas chromatography Elsevier Source input Elsevier Thermal maturity Elsevier Halahatang oilfield Elsevier Shi, Bingbing oth Han, Zuozhen oth Li, Tiantian oth Enthalten in Elsevier Science Baccelli, Francois ELSEVIER Iterated Gilbert mosaics 2019 Amsterdam [u.a.] (DE-627)ELV008094314 volume:157 year:2017 pages:223-231 extent:9 https://doi.org/10.1016/j.petrol.2017.07.043 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.70 Wahrscheinlichkeitsrechnung VZ AR 157 2017 223-231 9 |
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10.1016/j.petrol.2017.07.043 doi GBV00000000000356.pica (DE-627)ELV020368674 (ELSEVIER)S0920-4105(17)30592-2 DE-627 ger DE-627 rakwb eng 510 VZ 31.70 bkl Chang, Xiangchun verfasserin aut C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography 2017transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. Depositional environment Elsevier Light hydrocarbon Elsevier Two-dimensional gas chromatography Elsevier Source input Elsevier Thermal maturity Elsevier Halahatang oilfield Elsevier Shi, Bingbing oth Han, Zuozhen oth Li, Tiantian oth Enthalten in Elsevier Science Baccelli, Francois ELSEVIER Iterated Gilbert mosaics 2019 Amsterdam [u.a.] (DE-627)ELV008094314 volume:157 year:2017 pages:223-231 extent:9 https://doi.org/10.1016/j.petrol.2017.07.043 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.70 Wahrscheinlichkeitsrechnung VZ AR 157 2017 223-231 9 |
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C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography |
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C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography |
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10.1016/j.petrol.2017.07.043 |
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c<ce:inf loc="post">5</ce:inf>–c<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern halahatang oilfield (tarim basin, nw china) characterized by comprehensive two-dimensional gas chromatography |
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C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography |
| abstract |
The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. |
| abstractGer |
The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. |
| abstract_unstemmed |
The Halahatang Oilfield in the Tabei Uplift of the Tarim Basin has substantial petroleum potential and contains many prolific commercial oil reservoirs. In this study, a total of 15 DST oils were sampled from the northern Halahatang oilfield, and their geochemistry of C5–C13 light hydrocarbons (LHs) is characterized by two-dimensional gas chromatography (GC × GC). The concentrated clusters in the LH triangular diagrams and parent-daughter plots of the n-Heptane (%C7) vs. ln (Cps/CHs) corroborating with the similar K1 values (1.01–1.23), imply a high degree of compositional similarity and source affinity. The C7 LHs show a predominance of n-heptane (30.07%–42.75%) and a nearly identical abundance of MCyC6 (35.92%–45.85%), low IMCyC6 (methylcyclohexane index) value (35.92%–45.57%) and a moderate ICH (cyclohexane index) value (25.92%–45.66%), demonstrating that they were typical marine oils mainly originated from a substantial amount of sapropelic organic matter mixed with a nearly equivalent amount of humic one. The LH maturity indexes, such as the heptane (H) ratio (17.80%–29.28%), isoheptane (I) ratio (1.25–2.15), °Ctemp (113.72 °C −124.63 °C),methyladmantane index (MAI: 52.15%–63.65%) and equivalent vitrinite reflectance (1.1%–1.3% Ro) indicate a high thermal maturity. The values of 3-ethyl-2-methylheptane to 3-methylnonane (MT1: 0.91–3.65), 1,1,2,3-tetramethylcyclohexane to propylcyclohexane (MT2: 0.85–1.37), 2-methyl-3-ethylheptane/2,6-dimethyloctane (MTR: 0.59–1.25), and Pr/Ph (0.87–1.62) observed for the northern Halahatang oils consistently suggest a marine carbonate lithology for the source rock deposited in an anoxic, reducing environment. Geochemical and geological correlation imply the Halahatang oils are possibly derived from the O2+3 potential source rocks. |
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C<ce:inf loc="post">5</ce:inf>–C<ce:inf loc="post">13</ce:inf> light hydrocarbons of crude oils from northern Halahatang oilfield (Tarim Basin, NW China) characterized by comprehensive two-dimensional gas chromatography |
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