Authors:	Sell, Kathleen Saenger, Erik H. Falenty, Andrzej Chaouachi, Marwen Haberthür, David Enzmann, Frieder Kuhs, Werner F. Kersten, Michael
Title:	On the path to the digital rock physics of gas hydrate-bearing sediments : processing of in situ synchrotron-tomography data
Online publication date:	20-Jun-2022
Year of first publication:	2016
Language:	english
Abstract:	To date, very little is known about the distribution of natural gas hydrates in sedimentary matrices and its influence on the seismic properties of the host rock, in particular at low hydrate concentration. Digital rock physics offers a unique approach to this issue yet requires good quality, high-resolution 3-D representations for the accurate modeling of petrophysical and transport properties. Although such models are readily available via in situ synchrotron radiation X-ray tomography, the analysis of such data asks for complex workflows and high computational power to maintain valuable results. Here, we present a best-practice procedure complementing data from Chaouachi et al. (2015) with data post-processing, including image enhancement and segmentation as well as exemplary numerical simulations of an acoustic wave propagation in 3-D using the derived results. A combination of the tomography and 3-D modeling opens a path to a more reliable deduction of properties of gas hydrate-bearing sediments without a reliance on idealized and frequently imprecise models.
DDC:	550 Geowissenschaften 550 Earth sciences
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 09 Chemie, Pharmazie u. Geowissensch.
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-7171
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/3.0/
Journal:	Solid earth 7 4
Pages or article number:	1243 1258
Publisher:	Copernicus Publ.
Publisher place:	Göttingen
Issue date:	2016
ISSN:	1869-9529 1869-9510
Publisher URL:	http://dx.doi.org/10.5194/se-7-1243-2016
Publisher DOI:	10.5194/se-7-1243-2016
Appears in collections:	DFG-OA-Publizieren (2012 - 2017)