eprintid: 18211
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/82/11
datestamp: 2024-06-04 14:10:22
lastmod: 2024-06-04 14:10:22
status_changed: 2024-06-04 14:01:46
type: book
metadata_visibility: show
creators_name: Ahmed, W.
creators_name: Ahmad, M.
title: Comparative study of resistivity models and waxman smits model in cooper basin south australia-murteree shale: Case study
ispublished: pub
note: cited By 0
abstract: Murteree organic shale are one of most rich unconventional gas reservoirs in Cooper Basin, South Australia. In shale gas reservoirs, estimation of water saturation and porosity are very erroneous when calculated from the well logs. In Roseneath and Murteree shales of Copper Basin in South Australia, we investigated their fluids contents using Archie model, Simandoux, Indonesian and Dual water model. Later, brine estimation fromWaxman-Smits was correlated with Archie, Simandox, Indonesian and Dual water model results. Due to presence of high amount of clay minerals, conductivity and clay bound water are very high, the changes in salinity level of the brine due to post depositional features, followed by physical and chemical changes effect the determination of water saturation consequently. High clay volume in shale gas reservoirs cause over estimation of water saturation when determined by Archie and other resistivity models. Waxmans-Smiths equation gives more reliable results because it accounts the cation exchange capacity and conductance of clay minerals present in the formation. Also it is noticed that as the clay mineralogy percentage, clay bound water also increases with same pattern respectively. In this paper, description of Waxmans-smith equation in determination of water saturation has been presented and also relation between clay minerals and clay bound water has been discussed. Form our analysis, it has been estimated that, Waxmans-Smit conductivity model gives estimation of water more reliable as compare to resistivity models like Archie, Simandoux and Indonesian in unconventional shale gas reservoir. Hydrocarbon potential are present with respect to water saturation and resistivity logs. © 2023 The Authors.
date: 2023
publisher: IOS Press
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85172823331&doi=10.3233%2fAERD230024&partnerID=40&md5=c35f553ab4250da9eb7f26b7d2b68208
id_number: 10.3233/AERD230024
full_text_status: none
publication: Unconventional Methods for Geoscience, Shale Gas and Petroleum in the 21st Century
pagerange: 269-281
refereed: TRUE
isbn: 9781643684192; 9781643684185
citation:   Ahmed, W. and Ahmad, M.  (2023) Comparative study of resistivity models and waxman smits model in cooper basin south australia-murteree shale: Case study.     IOS Press, pp. 269-281.  ISBN 9781643684192; 9781643684185