Mohammed-Sajed, O.K., Glover, P.W.J. orcid.org/0000-0003-1715-5474, Al-Khatony, F.H. et al. (1 more author) (2024) Qualitative and quantitative diagenetic modelling in a tight carbonate reservoir in north-western Iraq. Geoenergy Science and Engineering, 232 (Part A). 212450. ISSN 2949-8929
Abstract
The diagenetic history of the Butmah Formation (Lower Jurassic) is very complex and affected by several diagenetic processes that worked effectively with fracturing control to create the final pore network. A microscopic study, core plug and well log analyses were combined in this study in order to describe, and differentiate between, the diagenetic and fracturing control that created the final pore system of the formation. The diagenetic processes of the Butmah Formation were studied in depth to describe the diagenetic stages and identify the elements that may compose a petrodiagenetic pathway illustrating its effect on the reservoir quality of the Butmah Formation. Accordingly, the Butmah Formation samples were divided into three petrophysical fields controlled mainly by fracturing and diagenesis, which were then used to develop a new method for estimating the pre-dolomitisation petrophysical properties of the dolomite samples and the post-dolomitisation petrophysical properties of the limestone samples. Consequently, the output of applying this method allows us to effectively begin to predict each of the elements that may compose a petrodiagenetic pathway for the Butmah Formation and make its reservoir characterisation integrated and more understandable. The new method provided a good prediction of matrix porosity and permeability, as well as allowing the estimation of reservoir properties of any other carbonate reservoir in petroleum development projects when there are no core samples in some formation intervals within boreholes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. This is an author produced version of an article published in Geoenergy Science and Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Diagenetic control; Carbonate reservoir; Butmah formation; Poroperm relationship; Tight carbonate; Petrodiagenetic pathway |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 31 Oct 2023 15:18 |
Last Modified: | 31 Oct 2024 01:13 |
Published Version: | https://www.sciencedirect.com/science/article/pii/... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.geoen.2023.212450 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204752 |