Nanoscale Visualization of Gas Shale Pore and Textural Features

Abstract

PreviousNext No AccessUnconventional Resources Technology Conference, Denver, Colorado, 12-14 August 2013Nanoscale Visualization of Gas Shale Pore and Textural FeaturesAuthors: Bolivia VegaJoy C. AndrewsYijin LiuJeff GelbAnthony KovscekBolivia VegaStanford University;Search for more papers by this author, Joy C. AndrewsStanford Synchrotron Radiation Lightsource;Search for more papers by this author, Yijin LiuStanford Synchrotron Radiation Lightsource;Search for more papers by this author, Jeff GelbXradia;Search for more papers by this author, and Anthony KovscekStanford UniversitySearch for more papers by this authorhttps://doi.org/10.1190/urtec2013-163 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract URTeC 1581981 Characterization of gas shale pore topology and composition supports efforts to produce methane as well as assess the feasibility of using depleted organic-rich shale reservoirs for carbon dioxide sequestration. Imaging performed with Full-field Transmission X-Ray Microscopy technology to characterize gas shale structure and heterogeneity was conducted on a set of Barnett and Haynesville gas shale samples to help determine how the physical and chemical processes associated with CO2 in organic-rich shales affect injectivity and storage capacity (over long periods of time), and the ability of the shale to sequester CO2 (as both a free and adsorbed phase). The images show the presence of density-differentiated areas that might be an indication of predominantly organic and inorganic matter matrices, along with lowest-density lineal pathways that point to the potential presence of micro cracks. Using an innovative imaging technique at the nanoscale, high X-ray contrast gas was applied to the sample and the images obtained show visual enhancement of particular rock features, such as available porous space and microcracks. Keywords: visualization, gas shale, sequestration, density, hetergeneous, rock physicsPermalink: https://doi.org/10.1190/urtec2013-163FiguresReferencesRelatedDetailsCited By2D-to-3D image translation of complex nanoporous volumes using generative networks21 October 2021 | Scientific Reports, Vol. 11, No. 1A Critical Review of the Physicochemical Impacts of Water Chemistry on Shale in Hydraulic Fracturing Systems11 January 2021 | Environmental Science & Technology, Vol. 55, No. 3Dynamic micro-CT study of gas uptake in coal using Xe, Kr and CO2Fuel, Vol. 212Quantifying the heterogeneity of shale through statistical combination of imaging across scales22 August 2017 | Acta Geotechnica, Vol. 12, No. 6Characterization and Measurement of Multiscale Gas Transport in Shale-Core Samples14 April 2016 | SPE Journal, Vol. 21, No. 02Performance of horizontal wells with fracture networks in shale gas formationJournal of Petroleum Science and Engineering, Vol. 133Characterization and Measurement of Multi-scale Gas Transport in Shale Core SamplesK.R. Alnoaimi*, C. Duchateau, and A. Kovscek24 September 2014Imaging-Based Characterization of Calcite-Filled Fractures and Porosity in ShalesB. Vega*, C.M. Ross, and A. Kovscek24 September 2014CT Imaging of Low-Permeability, Dual-Porosity Systems Using High X-ray Contrast Gas3 October 2013 | Transport in Porous Media, Vol. 101, No. 1Correlative X-ray and Electron Microscopy for Multi-scale Characterization of Heterogeneous Shale Reservoir Pore Systems Unconventional Resources Technology Conference, Denver, Colorado, 12-14 August 2013ISSN (online):2159-6832Copyright: 2013 Pages: 1229 publication data© 2013 Published in electronic format with permission by the Society of Exploration Geophysicists, American Association of Petroleum Geologists, and Society of Petroleum EngineersPublisher:Unconventional Resources Technology ConferenceSociety of Exploration Geophysicists HistoryPublished: 26 Sep 2013 CITATION INFORMATION Bolivia Vega, Joy C. Andrews, Yijin Liu, Jeff Gelb, and Anthony Kovscek, (2013), "Nanoscale Visualization of Gas Shale Pore and Textural Features," SEG Global Meeting Abstracts : 1603-1613. https://doi.org/10.1190/urtec2013-163 Plain-Language Summary Keywordsvisualizationgas shalesequestrationdensityhetergeneousrock physicsPDF DownloadLoading ...