Microfacies analysis and reservoir characterization low resistivity pay, Dariyan formation, Southeastern of Persian Gulf

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ARBAB B.; JAHANI D.; MOVAHED B.

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Journal: GEOSCIENCES Year:2018 | Volume:27 | Issue:109 Page(s): 23-32

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Title

Microfacies analysis and reservoir characterization low resistivity pay, Dariyan formation, Southeastern of Persian Gulf

Author(s)

ARBAB B. | JAHANI D. | MOVAHED B. | Issue Writer Certificate

Keywords

Dariyan formationQ2

Carbonate RampQ2

MicrofaciesQ2

NMRQ1

Rock FabricQ1

Low Resistivity PayQ1

Abstract

The Aptian Shuaiba deposits, in southeastern of Persian Gulf due to having resistivity less than 6 to 1 ohm. m, is considered as Low Resistivity Pay zone. On the basis of experimental studies 8 Microfacies defined which settled in a carbonate platform of homoclinal ramp model that belong to outer, middle, inner ramp. Existence micro porosity in the Microfacies is main reason for lowering resistivity. Various digenetic process are seen such as micritization and pyritization which have noticeable impact on declining resistivity. Lø nø y method applied to address pore throat sizes which contain Intercrystalline porosity, Chalky limestone, Mudstone micro porosity. Pore systems are at class 3 Lucia. NMR logs and core data have been used for defining reliable water saturation and reservoir characterization. Results explain that decreasing of resistivity in pay zone is related to texture and grain size variation not being existence of moved water. Irreducible water estimate for this reservoir between 30 to 50 %.

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APA: Copy

ARBAB, B., JAHANI, D., & MOVAHED, B.. (2018). Microfacies analysis and reservoir characterization low resistivity pay, Dariyan formation, Southeastern of Persian Gulf. GEOSCIENCES, 27(109 ), 23-32. SID. https://sid.ir/paper/32639/en

Vancouver: Copy

ARBAB B., JAHANI D., MOVAHED B.. Microfacies analysis and reservoir characterization low resistivity pay, Dariyan formation, Southeastern of Persian Gulf. GEOSCIENCES[Internet]. 2018;27(109 ):23-32. Available from: https://sid.ir/paper/32639/en

IEEE: Copy

B. ARBAB, D. JAHANI, and B. MOVAHED, “Microfacies analysis and reservoir characterization low resistivity pay, Dariyan formation, Southeastern of Persian Gulf,” GEOSCIENCES, vol. 27, no. 109 , pp. 23–32, 2018, [Online]. Available: https://sid.ir/paper/32639/en

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