Skip to Main Content
Skip Nav Destination
GEOREF RECORD

How did hydraulic-fracturing operations in the Horn River basin change seismicity patterns in northeastern British Columbia, Canada?

Amir Mansour Farahbod, Honn Kao, John F. Cassidy and Dan Walker
How did hydraulic-fracturing operations in the Horn River basin change seismicity patterns in northeastern British Columbia, Canada? (in Injection-induced seismicity, Robert Habiger (editor) and Gregory Beroza (editor))
Leading Edge (Tulsa, OK) (June 2015) 34 (6): 658-663

Abstract

An increase in regional seismicity has been documented for the Horn River Basin (HRB) since the development of shale gas began in late 2006. Operational parameters of all hydraulic-fracturing (HF) treatments in the HRB between November 2006 and December 2011 were compiled from completion reports collected by the British Columbia Oil and Gas Commission (BCOGC). This database was compared with regional earthquake catalogs to delineate a quantitative relationship between the observed variation of regional seismicity and local HF operations. Taking the HRB as a whole, results suggest that the total injected volume from hydraulic fracturing is a more significant factor in affecting the pattern of local seismicity than injection pressure is. However, no clear change in background seismicity can be observed when the total monthly injected volume is less than approximately 20,000 m (super 3) . The initial effect of increasing injected volume is an increase in earthquake frequency but not magnitude. Relatively large seismic- moment release (> 10 (super 14) N m) occurred only when the monthly injected volume exceeded approximately 150,000 m (super 3) . Variable time lags, from days to four months, are observed between intense HF and the occurrence of a significant local earthquake. The hydrologic properties of the source formations and local geologic conditions (such as distribution, geometry, and dimension of preexisting faults) also might play important roles in induced seismogenesis, in addition to the total volume of injection.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 34
Serial Issue: 6
Title: How did hydraulic-fracturing operations in the Horn River basin change seismicity patterns in northeastern British Columbia, Canada?
Title: Injection-induced seismicity
Author(s): Farahbod, Amir MansourKao, HonnCassidy, John F.Walker, Dan
Author(s): Habiger, Roberteditor
Author(s): Beroza, Gregoryeditor
Affiliation: Natural Resources Canada, Geological Survey of Canada, Sidney, BC, Canada
Pages: 658-663
Published: 201506
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 7
Accession Number: 2015-087024
Categories: Environmental geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N48°25'00" - N60°00'00", W139°00'00" - W114°00'00"
Secondary Affiliation: British Columbia Oil and Gas Commission, CAN, Canada
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201537
Close Modal

or Create an Account

Close Modal
Close Modal