Title
Simulation of induced seismic ground motions using coupled geomechanical and seismic wave propagation models
Author
Paap, B.
Kraaijpoel, D.
Wassing, B.
van Wees, J.D.
Publication year
2020
Abstract
Numerical simulations of seismic wave propagation usually rely on a simple source modelconsisting of an idealized point location and a moment tensor. In general, this is a validapproximation when the source dimensions are small relative to the distance of points at whichthe seismic wave motions are to be evaluated. Otherwise, a more realistic spatio-temporalsource representation is required to accurately calculate ground motions at the position ofmonitoring stations. Here, we present a generic approach to couple geomechanical simulationsto seismic wave propagation models using the concept of the equivalent force field. Thisapproach allows the simulation of seismic wave propagation resulting from the spatio-temporaldependent earthquake nucleation and rupture processes. Within the geomechanical packagetwo separate geomechanics codes are used to simulate both the slow loading stage leading toearthquake nucleation as well as the successive dynamic rupture stage. We demonstrate theapproach to a case of induced seismicity, where fault reactivation occurs due to productionfrom a natural gas reservoir
Subject
Computational seismology
Induced seismicity
Numerical modelling
Wave propagation
Crystallization
Gas industry
Geomechanics
Induced Seismicity
Nucleation
Petroleum reservoirs
Seismic waves
Wave propagation
Earthquake nucleation
Fault reactivation
Generic approach
Geomechanical simulations
Monitoring stations
Natural gas reservoir
Seismic ground motions
Source dimensions
Earthquakes
dynamic analysis
geomechanics
ground motion
hydrocarbon reservoir
induced seismicity
loading
monitoring
rupture
seismic wave
wave propagation
To reference this document use:
http://resolver.tudelft.nl/uuid:37f62949-5f40-4c83-9e0f-0fd0168b4271
DOI
https://doi.org/10.1093/gji/ggz506
TNO identifier
955323
Publisher
Oxford University Press
ISSN
0956-540X
Source
Geophysical Journal International, 220 (220), 1284-1299
Document type
article