| Title | Induced seismicity research project: an update / Projet de recherche sur la sismicité induite : une mise à joour |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kao, H |
| Source | Public presentations of May 8th, 2018: Environmental Geoscience Program, current status of research projects, May 2018; by Jacob, N; Kao, H; Galloway, J; Parsons, M; White, D; Larmagnat, S; Rivard, C; Gammon, P; Savard, M M; Geological Survey of Canada, Scientific Presentation 88, 2018 p. 5-14, https://doi.org/10.4095/308294  Open Access |
| Year | 2018 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Public presentations of May
8th, 2018: Environmental Geoscience Program, current status of research projects, May 2018 |
| Related | This publication is related to Induced Seismicity Research
Project: a brief summary of 2019-20 accomplishments |
| File format | pdf |
| Province | Canada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut;
Canada |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Area | Moncton; Sussex; Norman Wells; Mackenzie Valley; St. Lawrence Valley; Anticosti Island |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | environmental geology; geophysics; fossil fuels; environmental studies; environmental impacts; pollutants; hydraulic fracturing; sedimentary basins; bedrock geology; lithology; sedimentary rocks;
shales; petroleum resources; hydrocarbons; gas; wells; seismicity; earthquakes; seismology; seismic risk; seismographs; liquid waste disposal; seismological network; tectonic elements; strain analysis; August 17, 2015, Mw 4.6, northern Montney
earthquake |
| Illustrations | location maps; geoscientific sketch maps; plots; schematic representations |
| Program | Environmental Geoscience
Management |
| Released | 2018 06 27; 2018 07 04 |
| Abstract | The development of unconventional oil and gas in North America has caused a significant increase of seismicity in areas of intense injection operations, including hydraulic fracturing, wastewater
disposal, and enhanced production and recovery. These induced earthquakes have attracted considerable media attention due to their potential seismic hazards. In 2012, NRCan initiated the Induced Seismicity Research (ISR) Activity as part of the Shale
Gas Research Project, under the Environmental Geoscience Program, to investigate the possible relationship between hydraulic fracturing (HF) of shale gas and the changing pattern of local seismicity. In 2015, the activity was expanded to a Project to
include studies of all injection-related seismic events. NRCan's ISR Project has three major tasks. The first is to improve real-time earthquake-monitoring capability in major shale gas basins where the station coverage of regional seismograph
network is sparse. The second is to establish the baseline of regional seismic pattern (i.e., the pre-development reference line) for places where the development potential of unconventional oil and gas is deemed high in the foreseeable future. The
third is to conduct targeted studies on significant induced events to understand the relationship between their seismogenesis and man-made operations. In collaborations with many partners, new broadband seismograph stations have been installed in BC,
AB, NB, SK, QC, NT, and YT. Studies of local seismicity before, during, and after HF operations have been completed for the northeast BC and western AB, the Moncton and Sussex areas (southern NB), and the Norman Wells area of the central MacKenzie
Valley (NT). Regional earthquake baseline is also established for the areas of St. Lawrence Valley and Anticosti Island, QC. An increase of local seismicity in BC and AB is spatially and temporarily correlated with the peak period of injection
operations associated with shale gas development. Tectonic strain rate and injection volume appear to be important factors in controlling the distribution of induced events. Although large induced events always occurred near injection wells with
large volumes, large injection volume do not necessarily result in large induced events. Some of the largest hydraulic fracturing-induced earthquakes can cause strong shaking at the source areas, suggesting that seismic hazards due to induced
earthquakes should not be overlooked. Future efforts of NRCan's ISR include the delineation of seismogenic patterns of injection-induced earthquakes and their implications for regional short-and long-term seismic hazards, detailed investigations of
induced earthquake source characteristics with a multi?disciplinary approach, and the development and establishment of quantitative models to enhance and improve regulatory performances. |
| Summary | (Plain Language Summary, not published)
The Environmental Geoscience Program (EGP) provides scientific research projects by the Geological Survey of Canada to advance knowledge related to the
development of Canada's natural resources. The scientific breakthroughs presented at this annual meeting of the EGP are at the root of responsible resource management by the natural resources sector. The body of research also contributes to the
implementation of regulations that protect Canadians and their environment |
| GEOSCAN ID | 308294 |
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