OIL-OIL CORRELATION OF ASMARI AND BANGESTAN RESERVOIRS USING GAS CHROMATOGRAPHY AND STABLE ISOTOPES IN MARUN OILFIELD, SW IRAN

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ALIZADEH B.; ADAABI M.H.; TEZHEH F.

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Paper Information

Journal: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE Year:2007 | Volume:31 | Issue:A3 Page(s): 241-253

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Title

OIL-OIL CORRELATION OF ASMARI AND BANGESTAN RESERVOIRS USING GAS CHROMATOGRAPHY AND STABLE ISOTOPES IN MARUN OILFIELD, SW IRAN

Author(s)

ALIZADEH B. | ADAABI M.H. | TEZHEH F. | Issue Writer Certificate

Keywords

MARUNQ3

ASMARIQ3

BANGESTANQ3

OIL-OIL CORRELATIONQ3

GCQ3

CARBON AND SULFUR STABLE ISOTOPESQ3

Abstract

For this study, ASMARI (Oligo-Miocene) and BANGESTAN (Cretaceous) reservoir oils from the MARUN oilfield were studied geochemically. Gas chromatograms and stable isotopes of carbon and sulfur in different oil fractions were studied. Normal alkanes nC15+ are as high as 93% with a saturate percentage up to 53.9% which reveal a high maturity of ASMARI and BANGESTAN reservoir paraffinic oils. Carbon Preference Index of both reservoir oils are around one, indicating mature oil samples. Pr/nC17 and Ph/nC18 ratios have confirmed this conclusion. The Pr/Ph ratio is less than one and the plot of d13CAro.(‰) versus d13CSat.(‰) both indicate a marine reducing environment during the deposition of their source rocks. The organic matter deposited in these sediments is of kerogen Type II (Algal). Stable carbon isotope results versus Pr/Ph ratio indicate that both oils originate from the same shaley limestone of the Mesozoic age. This study also proves that H2S gas polluted ASMARI oils have a similar isotopic range as BANGESTAN reservoir oil, hence the source of contamination must have originated from the BANGESTAN reservoir. Isotopic and geochemical results, for the first time, introduce three oil families; two H2S polluted families and one non-H2S polluted oil family; in the entire MARUN oilfield.

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APA: Copy

ALIZADEH, B., ADAABI, M.H., & TEZHEH, F.. (2007). OIL-OIL CORRELATION OF ASMARI AND BANGESTAN RESERVOIRS USING GAS CHROMATOGRAPHY AND STABLE ISOTOPES IN MARUN OILFIELD, SW IRAN. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, 31(A3), 241-253. SID. https://sid.ir/paper/117905/en

Vancouver: Copy

ALIZADEH B., ADAABI M.H., TEZHEH F.. OIL-OIL CORRELATION OF ASMARI AND BANGESTAN RESERVOIRS USING GAS CHROMATOGRAPHY AND STABLE ISOTOPES IN MARUN OILFIELD, SW IRAN. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE[Internet]. 2007;31(A3):241-253. Available from: https://sid.ir/paper/117905/en

IEEE: Copy

B. ALIZADEH, M.H. ADAABI, and F. TEZHEH, “OIL-OIL CORRELATION OF ASMARI AND BANGESTAN RESERVOIRS USING GAS CHROMATOGRAPHY AND STABLE ISOTOPES IN MARUN OILFIELD, SW IRAN,” IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, vol. 31, no. A3, pp. 241–253, 2007, [Online]. Available: https://sid.ir/paper/117905/en

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