Open Journal of Geology, ( ISI ), Volume (4), No (4), Year (2014-8) , Pages (373-385)

Title : ( An Integrated Rock Typing Approach for Unraveling the Reservoir Heterogeneity of Tight Sands in the Whicher Range Field of Perth Basin, Western Australia )

Authors: Rahim Kadkhodaee Ilkhchi , Reza Rezaee , Sayyed Reza Moussavi Harami , Henrik Friis , Ali Kadkhodaie Ilkhchi ,

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Abstract

Tight gas sands in Whicher Range Field of Perth Basin show large heterogeneity in reservoir cha- racteristics and production behavior related to depositional and diagenetic features. Diagenetic events (compaction and cementation) have severely affected the pore system. In order to investi- gate the petrophysical characteristics, reservoir sandstone facies were correlated with core po- rosity and permeability and their equivalent well log responses to describe hydraulic flow units and electrofacies, respectively. Thus, very tight, tight, and sub-tight sands were differentiated. To reveal the relationship between pore system properties and depositional and diagenetic charac- teristics in each sand type, reservoir rock types were extracted. The identified reservoir rock types are in fact a reflection of internal reservoir heterogeneity related to pore system properties. All reservoir rock types are characterized by a compacted fabric and cemented framework. But distribution and dominance of diagenetic products in each of them depend on primary deposi- tional composition and texture. The results show that reservoir rock typing based on three as- pects of reservoir sandstones (depositional properties, diagenetic features and petrophysical characteristics) is a suitable technique for depiction of reservoir heterogeneity, recognition of re- servoir units and identifying factors controlling reservoir quality of tight sandstones. This me- thodology can be used for the other tight reservoirs.

Keywords

, Tight Sands, Electorofacies, Hydraulic Flow Unit, Rock Type, Reservoir Characteristics
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@article{paperid:1042744,
author = {Kadkhodaee Ilkhchi, Rahim and Reza Rezaee and Moussavi Harami, Sayyed Reza and Henrik Friis and Ali Kadkhodaie Ilkhchi},
title = {An Integrated Rock Typing Approach for Unraveling the Reservoir Heterogeneity of Tight Sands in the Whicher Range Field of Perth Basin, Western Australia},
journal = {Open Journal of Geology},
year = {2014},
volume = {4},
number = {4},
month = {August},
issn = {2161-7570},
pages = {373--385},
numpages = {12},
keywords = {Tight Sands; Electorofacies; Hydraulic Flow Unit; Rock Type; Reservoir Characteristics},
}

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%0 Journal Article
%T An Integrated Rock Typing Approach for Unraveling the Reservoir Heterogeneity of Tight Sands in the Whicher Range Field of Perth Basin, Western Australia
%A Kadkhodaee Ilkhchi, Rahim
%A Reza Rezaee
%A Moussavi Harami, Sayyed Reza
%A Henrik Friis
%A Ali Kadkhodaie Ilkhchi
%J Open Journal of Geology
%@ 2161-7570
%D 2014

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