Lower Cretaceous gas shales in northeastern British Columbia, Part II: evaluation of regional potential gas resources
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Résumé
Research Article| March 01, 2008 Lower Cretaceous gas shales in northeastern British Columbia, Part II: evaluation of regional potential gas resources Gareth R.L. Chalmers; Gareth R.L. Chalmers Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada Search for other works by this author on: GSW Google Scholar R. Marc Bustin R. Marc Bustin Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Gareth R.L. Chalmers Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada R. Marc Bustin Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada Publisher: Canadian Society of Petroleum Geologists Received: 05 Mar 2007 Accepted: 06 Nov 2007 First Online: 02 Mar 2017 Online ISSN: 2368-0261 Print ISSN: 0007-4802 © The Society of Canadian Petroleum Geologists Bulletin of Canadian Petroleum Geology (2008) 56 (1): 22–61. https://doi.org/10.2113/gscpgbull.56.1.22 Article history Received: 05 Mar 2007 Accepted: 06 Nov 2007 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 Gareth R.L. Chalmers, R. Marc Bustin; Lower Cretaceous gas shales in northeastern British Columbia, Part II: evaluation of regional potential gas resources. Bulletin of Canadian Petroleum Geology 2008;; 56 (1): 22–61. doi: https://doi.org/10.2113/gscpgbull.56.1.22 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 Cretaceous Buckinghorse Formation and equivalent strata in northeastern British Columbia are investigated for potential as gas shale reservoirs. A total of 215 cored samples were analyzed for methane sorption capacity, moisture content and total porosity. Organic geochemistry was determined by Rock-Eval 6 ® analyses and a suite of samples with a variation in TOC content, mineralogy and porosity were analyzed for permeability. Total organic carbon (TOC) contents vary between 0.2 and 16.99 wt%, with an average of 2.52 wt%. Organic matter is a mixture of Type I, II and III kerogens. Moisture contents vary between 1.5 and 11 wt%, with an average of 4.6 wt%. Methane sorption capacities range between 0.03 and 1.86 cm3/g, with an average of 0.53 cm3/g at hydrostatic pressure. Porosity of the shale is between 0.7 and 16% and averages 6.5%. The total gas capacity is between 1.49 and 14.5 cm3/g with an average of 5.7 cm3/g at hydrostatic pressure.The highest level of thermal maturity, as defined by Rock-Eval Tmax, occurs along the deformation front where depths of burial were the greatest. Tmax values ranged between 416°C (immature) and 476°C (overmature). TOC content and reservoir pressure are the primary controls on the methane sorption capacity of the strata. The highest methane sorption capacity is in NTS map section 94-P of the study area near the British Columbia, Alberta and Northwest Territory borders, where TOC contents are the highest and the kerogen is dominated by types I and II. Areas with greater depths of burial (adjacent to the deformation front) have higher reservoir pressures and this increases the ability to store significant amounts of sorbed gas even though TOC is lower than the shallower sediments. The TOC is lowest along the deformation front likely because of higher sedimentation rates and higher thermal maturities compared to the distal parts of the basin. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,003 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle