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GEOREF RECORD

Geomechanical modeling of induced seismicity resulting from hydraulic fracturing

Shawn C. Maxwell, F. Zhang and B. Damjanac
Geomechanical modeling of induced seismicity resulting from hydraulic fracturing (in Injection-induced seismicity, Robert Habiger (editor) and Gregory Beroza (editor))
Leading Edge (Tulsa, OK) (June 2015) 34 (6): 678-683

Abstract

The number of instances of induced seismicity associated with hydraulic fracturing has increased over the last few years, resulting in the development of industry protocols to mitigate seismic hazard. The main focus of these protocols is "traffic-light" systems based on seismic monitoring, in which operations are modified if a specified "yellow-light" magnitude level is reached or ultimately are stopped at a "red-light" magnitude. A variety of operational changes is possible to mitigate the seismic hazard at the different traffic-light levels, including slowing injection rate or volume, skipping stages, or ultimately stopping or flowing back the well. Empirical evidence of induced-seismicity magnitudes, including microseismic-imaging projects in which no induced seismicity occurred, are inconclusive about the impact of changing volume or rate. Although the largest observed magnitudes occur at large injection volumes, significant variability in magnitudes is found for both injection rate and volume. Alternatively, a geomechanical simulation can examine pore-pressure diffusion and mechanical stresses and strains associated with hydraulic-fracture treatments and can be used to model fault activation and corresponding estimates of seismic magnitudes. These geomechanical models complement monitoring-based traffic-light systems and can be used to test various operational changes to identify a scenario that reduces seismic hazard.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 34
Serial Issue: 6
Title: Geomechanical modeling of induced seismicity resulting from hydraulic fracturing
Title: Injection-induced seismicity
Author(s): Maxwell, Shawn C.Zhang, F.Damjanac, B.
Author(s): Habiger, Roberteditor
Author(s): Beroza, Gregoryeditor
Affiliation: Itasca Microseismic and Geomechanical Evaluation, International
Pages: 678-683
Published: 201506
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 8
Accession Number: 2015-087027
Categories: Environmental geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N48°25'00" - N60°00'00", W139°00'00" - W114°00'00"
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
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