Elastic and flow properties of carbonate core derived from 3D X ray-CT images

Mark A. Knackstedt, Christoph Arns, Mahyar Madadi, Adrian P. Sheppard, Shane Latham, Rob Sok, Gregor Bächle, Gregor P Eberli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbonate rocks are extremely diverse and their pore spaces complex and heterogeneous. Large uncertainties in the petrophysical properties of carbonates are due to wide variations in pore type, pore shape and interconnectivity. Petrophysical properties such as acoustic velocity and permeability are directly correlated to the amount and type of porosity, the dominant feature size and the interconnectivity of different porosity types. Accurately measuring these attributes requires the quantitative 3D analysis of the pore structure of carbonates. In this abstract we describe the imaging and analysis of two types of carbonate core; a set of vuggy, recrystallized dolostones and a set of oomoldic limestones. The structure and topology of the pore space is accurately determined via micro-CT analysis and the porosity consistent with experimental data. Acoustic velocity-porosity, pore connectivity and porosity permeability relationships are derived directly on the image data via numerical simulation and compared with measured data on the same rock. Acoustic velocity:porosity trends are good. Pore structural properties (pore size, aspect ratios, pore and throat shape and connectivity) are determined. The correlations between pore geometry and topology and elastic and flow properties can now be directly probed in a systematic manner. Three dimensional imaging and analysis of carbonate core material can provide a basis for more accurate petrophysical modeling and improve carbonate reservoir characterization.

Original languageEnglish (US)
Title of host publication78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
PublisherSociety of Exploration Geophysicists
Pages1804-1809
Number of pages6
ISBN (Print)9781605607856
StatePublished - Jan 1 2018
Event78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008 - Las Vegas, United States
Duration: Nov 9 2008Nov 14 2008

Other

Other78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
CountryUnited States
CityLas Vegas
Period11/9/0811/14/08

Fingerprint

carbonates
elastic properties
porosity
carbonate
x rays
acoustics
pore space
topology
connectivity
permeability
dolostone
acoustic velocity
reservoir characterization
carbonate rock
quantitative analysis
limestone
geometry
rocks
rock
modeling

ASJC Scopus subject areas

  • Geophysics

Cite this

Knackstedt, M. A., Arns, C., Madadi, M., Sheppard, A. P., Latham, S., Sok, R., ... Eberli, G. P. (2018). Elastic and flow properties of carbonate core derived from 3D X ray-CT images. In 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008 (pp. 1804-1809). Society of Exploration Geophysicists.

Elastic and flow properties of carbonate core derived from 3D X ray-CT images. / Knackstedt, Mark A.; Arns, Christoph; Madadi, Mahyar; Sheppard, Adrian P.; Latham, Shane; Sok, Rob; Bächle, Gregor; Eberli, Gregor P.

78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008. Society of Exploration Geophysicists, 2018. p. 1804-1809.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Knackstedt, MA, Arns, C, Madadi, M, Sheppard, AP, Latham, S, Sok, R, Bächle, G & Eberli, GP 2018, Elastic and flow properties of carbonate core derived from 3D X ray-CT images. in 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008. Society of Exploration Geophysicists, pp. 1804-1809, 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008, Las Vegas, United States, 11/9/08.
Knackstedt MA, Arns C, Madadi M, Sheppard AP, Latham S, Sok R et al. Elastic and flow properties of carbonate core derived from 3D X ray-CT images. In 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008. Society of Exploration Geophysicists. 2018. p. 1804-1809
Knackstedt, Mark A. ; Arns, Christoph ; Madadi, Mahyar ; Sheppard, Adrian P. ; Latham, Shane ; Sok, Rob ; Bächle, Gregor ; Eberli, Gregor P. / Elastic and flow properties of carbonate core derived from 3D X ray-CT images. 78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008. Society of Exploration Geophysicists, 2018. pp. 1804-1809
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