Skip to Main Content
Book Chapter

Microbial carbonates: a sampling and measurement challenge for petrophysics addressed by capturing the bioarchitectural components

By
Patrick Corbett
Patrick Corbett
1
Heriot–Watt University, Edinburgh, EH14 4AS, UK
Search for other works by this author on:
Felipe Yuji Hayashi
Felipe Yuji Hayashi
2
Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2194-1916, Brazil
Search for other works by this author on:
Michael Saad Alves
Michael Saad Alves
2
Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2194-1916, Brazil
Search for other works by this author on:
Zeyun Jiang
Zeyun Jiang
1
Heriot–Watt University, Edinburgh, EH14 4AS, UK
Search for other works by this author on:
Haitao Wang
Haitao Wang
1
Heriot–Watt University, Edinburgh, EH14 4AS, UK
Search for other works by this author on:
Vasily Demyanov
Vasily Demyanov
1
Heriot–Watt University, Edinburgh, EH14 4AS, UK
Search for other works by this author on:
Alessandra Machado
Alessandra Machado
2
Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2194-1916, Brazil
Search for other works by this author on:
Leonardo Borghi
Leonardo Borghi
2
Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2194-1916, Brazil
Search for other works by this author on:
Narendra Srivastava
Narendra Srivastava
3
Universidade Federal do Rio Grande de Norte, Natal, 59.072-970, Brazil
Search for other works by this author on:
Published:
January 01, 2015

Abstract

Ancient and modern stromatolites are potentially a challenge for petrophysicists when characterizing biosediments of microbial origin. Because of the heterogeneity, sometimes very cemented and lacking porosity, sometimes highly porous, these widely differing states can be used to develop techniques that can have wider application to addressing the representative elementary volume (REV – single or multiple REVs) challenge in microbial carbonates. Effective media properties – like porosity – need to be defined on REV scales and the challenge is that this scale is often close to or significantly larger than the traditional core plugs on which properties are traditionally measured. A combination of outcrop images, image analysis techniques, micro-computed tomography (CT) and modelling have been used to capture the porosity (or in some cases, precursor porosity) architecture and provide a framework for estimating petrophysical property sensitivities in a range of situations that can be subjected to further calibration by measurements in relevant microbial reservoir rocks. This work will help guide the sampling approach along with the interpretation and use of petrophysical measurements from microbial carbonates. The bioarchitectural component, when controlling porosity in microbial carbonates, presents a significant challenge as the REV scale is often much larger than core plugs, requiring careful screening of existing data and measurement and additional geostatistical model-based approaches (with further calibration).

You do not currently have access to this article.

Figures & Tables

Contents

Geological Society, London, Special Publications

Microbial Carbonates in Space and Time: Implications for Global Exploration and Production

D. W. J. Bosence
D. W. J. Bosence
Royal Holloway, University of London, UK
Search for other works by this author on:
K. A. Gibbons
K. A. Gibbons
Nexen Petroleum UK Ltd, UK
Search for other works by this author on:
D. P. Le Heron
D. P. Le Heron
Royal Holloway, University of London, UK
Search for other works by this author on:
W. A. Morgan
W. A. Morgan
Morgan Geoscience Consulting, LLC, USA
Search for other works by this author on:
T. Pritchard
T. Pritchard
BG Group, UK
Search for other works by this author on:
B. A. Vining
B. A. Vining
Royal Holloway, University of London, UK
Search for other works by this author on:
Geological Society of London
Volume
418
ISBN electronic:
9781862397163
Publication date:
January 01, 2015

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal