Shale gas potential of the Lower Jurassic Gordondale Member, northeastern British Columbia, Canada

Abstract

Research Article| March 01, 2007 Shale gas potential of the Lower Jurassic Gordondale Member, northeastern British Columbia, Canada Daniel J.K. Ross; Daniel J.K. Ross Department of Geological Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, dross@eos.ubc.ca Search for other works by this author on: GSW Google Scholar R. Marc Bustin R. Marc Bustin Department of Geological Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4 Search for other works by this author on: GSW Google Scholar Author and Article Information Daniel J.K. Ross Department of Geological Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, dross@eos.ubc.ca R. Marc Bustin Department of Geological Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4 Publisher: Canadian Society of Petroleum Geologists Received: 27 Sep 2006 Accepted: 15 Dec 2006 First Online: 02 Mar 2017 Online ISSN: 2368-0261 Print ISSN: 0007-4802 © The Society of Canadian Petroleum Geologists Bulletin of Canadian Petroleum Geology (2007) 55 (1): 51–75. https://doi.org/10.2113/gscpgbull.55.1.51 Article history Received: 27 Sep 2006 Accepted: 15 Dec 2006 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Daniel J.K. Ross, R. Marc Bustin; Shale gas potential of the Lower Jurassic Gordondale Member, northeastern British Columbia, Canada. Bulletin of Canadian Petroleum Geology 2007;; 55 (1): 51–75. doi: https://doi.org/10.2113/gscpgbull.55.1.51 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 SocietyBulletin of Canadian Petroleum Geology Search Advanced Search Abstract The Lower Jurassic Gordondale Member is an organic-rich mudrock and is widely considered to have potential as a shale gas reservoir. Influences of Gordondale mudrock composition on total gas capacities (sorbed and free gas) have been determined to assess the shale gas resource potential of strata in the Peace River district, northeastern British Columbia. Sorbed gas capacities of moisture-equilibrated samples increase over a range of 0.5 to 12 weight percent total organic carbon content (TOC). Methane adsorption capacities range from 0.05 cc/g to over 2 cc/g in organic-rich zones (at 6 MPa and 30°C). Sorption capacities of mudrocks under dry conditions are greater than moisture equilibrated conditions due to water occupation of potential sorption sites. However, there is no consistent decrease of sorption capacity with increasing moisture as the relationship is masked by both the amount of organic matter and thermal maturation level. Clays also affect total gas capacities in as much as clay-rich mudrocks have high porosity which may be available for free gas. Gordondale samples enriched with carbonate (calcite and dolomite) typically have lower total porosities than carbonate-poor rocks and hence have lower potential free gas contents.On a regional reservoir scale, a large proportion of the Gordondale total gas capacity is free gas storage (intergranular porosity), ranging from 0.1–22 Bcf/section (0.003–0.66 m3/section). Total gas-in-place capacity ranges from 1–31.4 Bcf/ section (0.03–0.94 m3/section). The greatest potential for gas production is in the south of the study area (93-P) due to higher thermal maturity, TOC enrichment, higher reservoir pressure, greater unit thickness and improved fracture-potential. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.