|Titre||A review of the November 24-25, 2011 shale gas workshop, Calgary, Alberta - 2. Groundwater resources|
|Auteur||Rivard, C; Molson, J W; Soeder, D J; Johnson, E G; Grasby, S E; Wang, B; Rivera, A|
|Source||Commission géologique du Canada, Dossier public 7096, 2012, 205 pages, https://doi.org/10.4095/290257 (Accès ouvert)|
|Éditeur||Ressources naturelles Canada|
|Réunion||Shale Gas Workshop; Calgary; CA; Novembre 24-25, 2011|
|Media||en ligne; numérique|
|Référence reliée||Cette publication contient les
|Référence reliée||Cette publication est reliée Lavoie, D; Chen, Z;
Pinet, N; Lyster, S; (2012). A review of November 24-25, 2011 shale gas workshop, Calgary, Alberta - 1. Resource evaluation methodology, Commission géologique du Canada, Dossier public 7088|
|Province||Ontario; Nouvelle-Écosse; Nouveau-Brunswick; Colombie-Britannique; Québec|
|SNRC||40I; 40P; 40J/01; 40J/02; 40J/03; 40J/07; 40J/08; 40J/09; 40J/16; 40O/01; 30L/13; 30L/14; 30M; 41A; 41H/03; 11E; 11F/12; 11F/13; 11F/14; 11K/03; 21H/09; 21H/10; 21H/15; 21H/16; 11L/04; 21G/01; 21G/02;
21G/03; 21G/06; 21G/07; 21G/08; 21G/09; 21G/10; 21G/11; 21G/12; 21G/13; 21G/14; 21G/15; 21G/16; 21H/05; 21H/06; 21H/11; 21H/12; 21H/13; 21H/14; 21I/01; 21I/02; 21I/03; 21I/04; 21I/05; 21I/06; 21I/07; 21I/10; 21I/11; 21I/12; 21I/13; 21I/14; 21I/15;
21J; 21N/02; 21N/07; 21N/08; 21N/09; 21N/16; 21O; 21P/02; 21P/03; 21P/04; 21P/05; 21P/06; 21P/07; 21P/10; 21P/11; 21P/12; 21P/13; 21P/14; 21P/15; 93I/09; 93I/10; 93I/11; 93I/12; 93I/13; 93I/14; 93I/15; 93I/16; 93J/09; 93J/10; 93J/15; 93J/16; 93O;
93P; 94A; 94B/01; 94B/02; 94B/07; 94B/08; 94B/09; 94B/10; 94B/15; 94B/16; 94G/01; 94G/02; 94I/09; 94I/10; 94I/11; 94I/12; 94I/13; 94I/14; 94I/15; 94I/16; 94J/09; 94J/10; 94J/11; 94J/12; 94J/13; 94J/14; 94J/15; 94J/16; 94O; 94P|
|Lat/Long OENS|| -86.0000 -76.0000 42.0000 37.0000|
|Lat/Long OENS|| -83.5000 -79.0000 45.5000 42.0000|
|Lat/Long OENS|| -65.0000 -61.0000 46.2500 45.0000|
|Lat/Long OENS|| -69.0000 -63.5000 48.2500 45.0000|
|Lat/Long OENS||-123.0000 -120.0000 57.2500 54.5000|
|Lat/Long OENS||-124.0000 -120.0000 60.0000 58.5000|
|Sujets||gaz; gaz d'hydrocarbure; schistes; hydrocarbures; capacité de production d'hydrocarbures; aquifères; eau souterraine; pollution de l'eau souterraine; ressources en eau souterraine; géochimie des eaux
souterraines; qualité de l'eau; gestion des déchets; analyse environnementales; etudes de l'environnement; effets sur l'environnement; migration des fluides; fracturation hydraulique; Argile de Marcellus ; Groupe de Cumberland ; Groupe de Windsor ;
Groupe d'Horton ; Bassin d'Horn River ; Bassin de Deep ; combustibles fossiles; hydrogéologie; géochimie; Paléozoïque; Dévonien|
|Illustrations||tables; location maps; photographs; schematic representations; graphs; models; profiles|
environnementales, Gaz de schiste - les eaux souterraines|
|Diffusé||2012 04 20|
|Résumé||(Sommaire disponible en anglais seulement)|
The combination of new technologies, such as advances in horizontal drilling and the development of efficient hydraulic fracturing techniques along the
horizontal laterals, as well as the relatively rapid increase in the price of natural gas and associated liquid hydrocarbons (from shale oil), have made shale gas exploration and production increasingly appealing over the last
Recognizing the importance of this major resource for the Canadian economy, the Geological Survey of Canada (GSC) organized a workshop in November 2012, in Calgary. Two major geoscientific issues, identified at a previous meeting in May 2012,
were addressed: 1) the need for a scientifically sound methodology to evaluate the "in-place" and "producible" gas resource in the shales and 2) the need for improving geoscientific knowledge about groundwater management and protection given the
injection of large quantities of water and chemicals required for hydraulic fracturing operations. Fifty-six participants from various provincial/territorial and federal governments, as well as universities attended this 2-day workshop. Twenty-six of
them participated in the groundwater resources theme.
Two keynote speakers, one for the shale gas resources theme (Mr. Mike Johnson, from the National Energy Board), and one for the groundwater resources theme (Mr. Daniel J. Soeder, from the U.S.
Department of Energy), gave enlightening presentations at the beginning of each day. On the groundwater side, informative presentations were given by five provincial representatives on the first day, followed by round-table discussions held over the
2-day period in order to efficiently tackle several key topics. Participants were invited to alternately take part in five different discussion groups that had for sub-themes: water quantity, wastewater management, migration mechanisms, data gaps and
This Open File presents a review of the presentations and discussions that took place on the groundwater resources side. Its counterpart for the shale gas resources theme is Open File 7088. The main conclusions of the
groundwater resources theme group can be summarized as follows:
- Ways must be found to reduce water consumption for slickwater hydraulic fracking.
- The use of saline water, which is not in conflict with other water demands, should be fostered
and be proposed in upcoming regulations.
- Baseline studies should be carried out to ensure that groundwater is characterized prior to exploration.
- Monitoring plans must be developed based on the site characteristics for water, gas and well
casings before, during and after fracking and production.
- Research studies must be carried out since little is known on potential migration pathways of fluids and gas from the casing or shale formation towards surficial aquifers.
from this research should support the development of regulations and policies that must be well adapted to activities related to this new unconventional energy resource.
- Data from all sources need to be made available and integrated into a
- The public, who is concerned by hydraulic fracturing and aquifer contamination, needs to be better informed with scientific facts. Research will help fill many of the existing data gaps.
- Water pricing and environmental
liability could be used as incentives to reduce water consumption and favour recycling (reuse). Incentives should also be found or legislation should be enacted for banning the use of toxic additives for hydraulic fracturing.
- Collaboration is
essential (between federal and provincial/territorial departments, among federal departments and agencies, among provinces and territories, as well as with other countries such as the U.S.) for the protection of groundwater resources.
industry should also be part of research studies, to share their data and contribute financially.