Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Modeling pressure response into a fractured zone of Precambrian basement to understand deep induced-earthquake hypocenters from shallow injection

S. Raziperchikolaee and J. F. Miller
Modeling pressure response into a fractured zone of Precambrian basement to understand deep induced-earthquake hypocenters from shallow injection (in Injection-induced seismicity, Robert Habiger (editor) and Gregory Beroza (editor))
Leading Edge (Tulsa, OK) (June 2015) 34 (6): 684-689

Abstract

Analysis of the spatiotemporal distribution of seismic events in Youngstown, Ohio, from previous studies has revealed that the seismicity was triggered by injection during January through December 2011 into a brine-disposal well (North Star #1 well). Investigation of the hypocenters of induced earthquakes, which were substantially deeper than the injection zones in the well, brings the question of how pore pressure could migrate more than a kilometer below the injection zone into the Precambrian basement rock to cause induced seismicity. By doing numerical modeling of brine injection into the North Star #1 well, it is possible to better understand the relationship among induced-seismicity hypocenter locations, pressure diffusion, and formation geology. The effects of geologic and geomechanical characteristics of subsurface formations have been studied, the potential of hydraulic fracturing during brine injection has been considered, and the potential presence of conductive fault or fractured zones has been evaluated. Results show that conductive fractures and faults could be considered one of the main causes of deep induced seismicity by serving as conduits to the deeper, critically stressed basement faults. In addition, heterogeneity along the fault zone could be one of the reasons for lateral migration of earthquake hypocenters over time.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 34
Serial Issue: 6
Title: Modeling pressure response into a fractured zone of Precambrian basement to understand deep induced-earthquake hypocenters from shallow injection
Title: Injection-induced seismicity
Author(s): Raziperchikolaee, S.Miller, J. F.
Author(s): Habiger, Roberteditor
Author(s): Beroza, Gregoryeditor
Affiliation: Battelle Memorial Institute, United States
Pages: 684-689
Published: 201506
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 11
Accession Number: 2015-087028
Categories: Environmental geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
N40°52'60" - N41°07'30", W81°04'60" - W80°31'60"
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