Classification of microporosity in carbonates: Examples from Miocene carbonate reservoirs of central luconia, offshore Sarawak, Malaysia

Habibur Rahman, Md. and Pierson, B.J. and Yusoff, W.I.W. (2011) Classification of microporosity in carbonates: Examples from Miocene carbonate reservoirs of central luconia, offshore Sarawak, Malaysia. In: UNSPECIFIED.

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Abstract

Miocene carbonate reservoirs may contain appreciable amount of microporosity in grain, cement or matrix. Depending on the crystallometry and morphometry of micrite particles, microporosity can vary both in amount and in nature. Different kinds of micrite microtextures may produce different types of microporosity. This study proposes a classification of micrite microtextures and microporosity. Four different types of micrite microtextures are classified in this study; these are rounded micrites, subrounded micrites, microrhombic and polyhedral micrites, and compact anhedral micrites. Four different types of micropores are classified based on their pore sizes. These are very fine, fine, medium, and coarse micropores. The classification of microporosity allows its occurrence in carbonate reservoirs to be explained depending on micrite microtextures. The classification of micropores in terms of their micrite microtextural occurrence lead us to define the micropores that are contributing to the permeability of the reservoirs and allow fluid flow in carbonates. The classes of micropores together with the corresponding micrite microtextures of their occurrences help to define the potential reservoir rocks in terms of micrite microtextures. © Copyright 2011, International Petroleum Technology Conference

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 6; Conference of International Petroleum Technology Conference 2011, IPTC 2011 ; Conference Date: 15 November 2011 Through 17 November 2011; Conference Code:138907
Uncontrolled Keywords: Carbonates; Carbonation; Flow of fluids; Gasoline; Microporosity; Offshore oil well production; Petroleum reservoir engineering; Petroleum reservoirs; Pore size, Anhedral; Carbonate reservoir; Malaysia; Micrites; Micro texture; Micropores; Morphometry; Potential reservoir, Deposits
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:50
Last Modified: 09 Nov 2023 15:50
URI: https://khub.utp.edu.my/scholars/id/eprint/2278

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