SEDIMENTARY AND ELECTROFACIES ANALYSIS USING MRGC METHOD IN THE BANGESTAN RESERVOIR OF GHALEA-NAR OIL FIELD, SW IRAN

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JAMSHIDI MARYAM; GOLI TAHER; JALILIAN ALI HOSSEIN; ARZANI NASER; ARSHAD ABDOLVAHAB

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Journal: APPLIED SEDIMENTOLOGY Year:2017 | Volume:4 | Issue:8 Page(s): 42-55

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Title

SEDIMENTARY AND ELECTROFACIES ANALYSIS USING MRGC METHOD IN THE BANGESTAN RESERVOIR OF GHALEA-NAR OIL FIELD, SW IRAN

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ELECTERICAL FACIESQ2

SEDIMENTARY FACIESQ2

BANGESTAN GROUPQ2

GHALEA-NAR OIL FIELDQ1

MRGC METHODQ1

Abstract

The study of electrofacies is a useful petrophysical analysis method in oil-well exploration and evaluation of reservoir characteristics, particularly when the wells lack actual geological data. In order to interpret the electrical facies of the BANGESTAN GROUP in Ghalea-Nai oil field, three surface sections were chosen and studied for petrographic and petrophysical features. This resulted in the identification of seven microfacies including: wackstone-wackstone, wackstone, sponge (spongy) spicule oligosteginid, bioclast wackstone-packstone, benthic foraminifera rudist wackstone-packstone, peloidal bioclast packstone-grainstone, peloidal microbioclast packstone-wackstone, pelagic foraminifera wackstone-packstone and oligosteginid wackstone-packstone. Porosity percentages and high quality lithofacies of the Bangestan reservoir were identified by "Geolog software", using petrographic data including: neutron, sonic (sound) and resistivity logs on predominant lithology. Based on these results, and also using of lithology determinant intersecting logs, the major identified lithologies are: limestone, dolomite and limestone with minor amounts of dolomite. Based on these results the identified porosity percentages varies between well. No.3 with 18% (the highest porosity), well No.2. with about 10% and well No.4 with 6% (the lowest porosity). The sedimentary microfacies conforming to high quality reservoir were recognized based on electrical investigation and using of MRGC clustering method. This microfacies which belong to Ilam-Sarvak formations are represented by bioclast peloidal packstone-grainstone and sponge spicule oligosteginid packstone-wackstone, respectively.

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APA: Copy

JAMSHIDI, MARYAM, GOLI, TAHER, JALILIAN, ALI HOSSEIN, ARZANI, NASER, & ARSHAD, ABDOLVAHAB. (2017). SEDIMENTARY AND ELECTROFACIES ANALYSIS USING MRGC METHOD IN THE BANGESTAN RESERVOIR OF GHALEA-NAR OIL FIELD, SW IRAN. APPLIED SEDIMENTOLOGY, 4(8), 42-55. SID. https://sid.ir/paper/260561/en

Vancouver: Copy

JAMSHIDI MARYAM, GOLI TAHER, JALILIAN ALI HOSSEIN, ARZANI NASER, ARSHAD ABDOLVAHAB. SEDIMENTARY AND ELECTROFACIES ANALYSIS USING MRGC METHOD IN THE BANGESTAN RESERVOIR OF GHALEA-NAR OIL FIELD, SW IRAN. APPLIED SEDIMENTOLOGY[Internet]. 2017;4(8):42-55. Available from: https://sid.ir/paper/260561/en

IEEE: Copy

MARYAM JAMSHIDI, TAHER GOLI, ALI HOSSEIN JALILIAN, NASER ARZANI, and ABDOLVAHAB ARSHAD, “SEDIMENTARY AND ELECTROFACIES ANALYSIS USING MRGC METHOD IN THE BANGESTAN RESERVOIR OF GHALEA-NAR OIL FIELD, SW IRAN,” APPLIED SEDIMENTOLOGY, vol. 4, no. 8, pp. 42–55, 2017, [Online]. Available: https://sid.ir/paper/260561/en

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