The emerging role of 4D synchrotron X‐ray micro‐tomography for climate and fossil energy studies: five experiments showing the present capabilities at beamline 8.3.2 at the Advanced Light Source. (13th October 2017)

• Record Type: Journal Article
• Authors: Voltolini, Marco; Haboub, Abdelmoula; Dou, Shan; Kwon, Tae-Hyuk; MacDowell, Alastair A.; Parkinson, Dilworth Y.; Ajo-Franklin, Jonathan
• Is Part Of: Journal of synchrotron radiation. Volume 24:Part 6(2017)
• Page Start: 1237
• Page End: 1249
• Publication Date: 2017-10-13
• Subjects: X‐ray microCT -- in situ imaging -- earth and energy sciences; Synchrotron radiation -- Periodicals; Free electron lasers -- Periodicals; 539.73505
• DOI: 10.1107/S1600577517012449
• Languages: English
• ISSNs: 0909-0495

Abstract

Abstract : Recent developments in in situ synchrotron X‐ray micro‐computed tomography allow novel time‐resolved experiments. Five different dynamic micro‐computed tomography experiments addressing carbon sequestration, permafrost evolution and unconventional oil recovery topics are presented. Abstract : Continuous improvements at X‐ray imaging beamlines at synchrotron light sources have made dynamic synchrotron X‐ray micro‐computed tomography (SXR‐µCT) experiments more routinely available to users, with a rapid increase in demand given its tremendous potential in very diverse areas. In this work a survey of five different four‐dimensional SXR‐µCT experiments is presented, examining five different parameters linked to the evolution of the investigated system, and tackling problems in different areas in earth sciences. SXR‐µCT is used to monitor the microstructural evolution of the investigated sample with the following variables: (i) high temperature, observing in situ oil shale pyrolysis; (ii) low temperature, replicating the generation of permafrost; (iii) high pressure, to study the invasion of supercritical CO2 in deep aquifers; (iv) uniaxial stress, to monitor the closure of a fracture filled with proppant, in shale; (v) reactive flow, to observe the evolution of the hydraulic properties in a porous rock subject to dissolution. For each of these examples, it is shown how dynamic SXR‐µCT was able to provide new answers to questions related to climate and energy studies, highlighting the significant opportunities opened recently by the technique.