Visual observation of gas-hydrate formation and dissociation in synthetic porous media by means of glass micromodels (2001)

Research Article| September 01, 2001 Visual observation of gas-hydrate formation and dissociation in synthetic porous media by means of glass micromodels Bahman Tohidi; Bahman Tohidi 1Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Search for other works by this author on: GSW Google Scholar Ross Anderson; Ross Anderson 1Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Search for other works by this author on: GSW Google Scholar M. Ben Clennell; M. Ben Clennell 3Centro de Pesquisa em Geofísica e Geologia–IGEO, Universidade Federal da Bahia, Rua Caetano Moura 123, Salvador, Bahia 40170-290, Brazil Search for other works by this author on: GSW Google Scholar Rod W. Burgass; Rod W. Burgass 4Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Search for other works by this author on: GSW Google Scholar Ali B. Biderkab Ali B. Biderkab 4Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Bahman Tohidi 1Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Ross Anderson 1Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK M. Ben Clennell 3Centro de Pesquisa em Geofísica e Geologia–IGEO, Universidade Federal da Bahia, Rua Caetano Moura 123, Salvador, Bahia 40170-290, Brazil Rod W. Burgass 4Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Ali B. Biderkab 4Department of Petroleum Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK Publisher: Geological Society of America Received: 08 Dec 2000 Revision Received: 09 May 2001 Accepted: 21 May 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2001) 29 (9): 867–870. https://doi.org/10.1130/0091-7613(2001)029<0867:VOOGHF>2.0.CO;2 Article history Received: 08 Dec 2000 Revision Received: 09 May 2001 Accepted: 21 May 2001 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Bahman Tohidi, Ross Anderson, M. Ben Clennell, Rod W. Burgass, Ali B. Biderkab; Visual observation of gas-hydrate formation and dissociation in synthetic porous media by means of glass micromodels. Geology 2001;; 29 (9): 867–870. doi: https://doi.org/10.1130/0091-7613(2001)029<0867:VOOGHF>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Visual observation of gas hydrates at the microscopic scale in synthetic porous media provides unequivocal visual evidence that clathrates can form in systems without the presence of a free-gas phase. Hydrates were formed from a soluble liquid hydrate former (tetrahydrofuran, C4H8O), from free gas (CH4), and from dissolved gas (CO2). Clathrates were found to form within the center of pore spaces, rather than on grain surfaces. Cementation of grains only occurred in regions of a small grain size, or where a large proportion of pore space was filled with hydrate. However, even at high clathrate saturations, a thin film of free water persisted on grain surfaces. The results have important implications for the potential cementing effect of hydrates on sediments, and thus for sediment permeability, slope stability, and seismic interpretation of hydrate-bearing sediments. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.