Fluid-induced aseismic fault slip outpaces pore-fluid migration

Published on May 3, 2019in Science47.728
路 DOI :10.1126/SCIENCE.AAW7354
P. Bhattacharya4
Estimated H-index: 4
(IIT BBS: Indian Institute of Technology Bhubaneswar),
Robert C. Viesca10
Estimated H-index: 10
(Tufts University)
Earthquake swarms attributed to subsurface fluid injection are usually assumed to occur on faults destabilized by increased pore-fluid pressures. However, fluid injection could also activate aseismic slip, which might outpace pore-fluid migration and transmit earthquake-triggering stress changes beyond the fluid-pressurized region. We tested this theoretical prediction against data derived from fluid-injection experiments that activated and measured slow, aseismic slip on preexisting, shallow faults. We found that the pore pressure and slip history imply a fault whose strength is the product of a slip-weakening friction coefficient and the local effective normal stress. Using a coupled shear-rupture model, we derived constraints on the hydromechanical parameters of the actively deforming fault. The inferred aseismic rupture front propagates faster and to larger distances than the diffusion of pressurized pore fluid.
馃摉 Papers frequently viewed together
5 Authors (Yves Guglielmi, ..., Derek Elsworth)
10 Authors (Francesco Grigoli, ..., Stefan Wiemer)
#1Fr茅d茅ric Cappa (Institut Universitaire de France)H-Index: 34
#2Marco M. Scuderi (Sapienza University of Rome)H-Index: 21
Last. Jean Philippe Avouac (California Institute of Technology)H-Index: 96
view all 5 authors...
Faults can slip seismically or aseismically depending on their hydromechanical properties, which can be measured in the laboratory. Here, we demonstrate that fault slip induced by fluid injection in a natural fault at the decametric scale is quantitatively consistent with fault slip and frictional properties measured in the laboratory. The increase in fluid pressure first induces accelerating aseismic creep and fault opening. As the fluid pressure increases further, friction becomes mainly rate ...
#1Thomas Goebel (UCSC: University of California, Santa Cruz)H-Index: 17
#2Emily E. Brodsky (UCSC: University of California, Santa Cruz)H-Index: 59
Fluid injection can cause extensive earthquake activity, sometimes at unexpectedly large distances. Appropriately mitigating associated seismic hazards requires a better understanding of the zone of influence of injection. We analyze spatial seismicity decay in a global dataset of 18 induced cases with clear association between isolated wells and earthquakes. We distinguish two populations. The first is characterized by near-well seismicity density plateaus and abrupt decay, dominated by square-...
#1Francesco Grigoli (Swiss Seismological Service)H-Index: 17
#2Simone CescaH-Index: 27
Last. Stefan Wiemer (Swiss Seismological Service)H-Index: 63
view all 10 authors...
The M w 5.5 earthquake that struck South Korea in November 2017 was one of the largest and most damaging events in this country over the last century. Its proximity to an Enhanced Geothermal Systems site, where high pressure hydraulic injection had been performed during the previous two years, raises the possibility that this earthquake was anthropogenic. We have combined seismological and geodetic analyses to characterize the mainshock and its largest aftershocks, constrain the geometry of this...
#1Kwang Hee Kim (PNU: Pusan National University)H-Index: 4
#2Jin Han Ree (KU: Korea University)H-Index: 24
Last. Wooseok Seo (PNU: Pusan National University)H-Index: 4
view all 6 authors...
The moment magnitude ( M w ) 5.4 Pohang earthquake, the most damaging event in South Korea since instrumental seismic observation began in 1905, occurred beneath the Pohang geothermal power plant in 2017. Geological and geophysical data suggest that the Pohang earthquake was induced by fluid from an enhanced geothermal system (EGS) site, which was injected directly into a near-critically stressed subsurface fault zone. The magnitude of the mainshock makes it the largest known induced earthquake ...
#1Robert C. Viesca (Tufts University)H-Index: 10
#2Dmitry I. Garagash (Dal: Dalhousie University)H-Index: 21
Abstract We consider numerical solutions in which the linear elastic response to an opening- or sliding-mode fracture couples with one or more processes. Classic examples of such problems include traction-free cracks leading to stress singularities or cracks with cohesive-zone strength requirements leading to non-singular stress distributions. These classical problems have characteristic square-root asymptotic behavior for stress, relative displacement, or their derivatives. Prior work has shown...
#1Kyungjae Im (PSU: Pennsylvania State University)H-Index: 7
#2Derek Elsworth (PSU: Pennsylvania State University)H-Index: 74
Last. Yi Fang (University of Texas at Austin)H-Index: 16
view all 3 authors...
#1Martin Galis (KAUST: King Abdullah University of Science and Technology)H-Index: 14
#2Jean-Paul Ampuero (California Institute of Technology)H-Index: 51
Last. Fr茅d茅ric Cappa (Institut Universitaire de France)H-Index: 34
view all 4 authors...
Injection-induced earthquakes pose a serious seismic hazard but also offer an opportunity to gain insight into earthquake physics. Currently used models relating the maximum magnitude of injection-induced earthquakes to injection parameters do not incorporate rupture physics. We develop theoretical estimates, validated by simulations, of the size of ruptures induced by localized pore-pressure perturbations and propagating on prestressed faults. Our model accounts for ruptures growing beyond the ...
#1M. SchoenballH-Index: 1
#2W. L. EllsworthH-Index: 1
#1Martin Schoenball (Stanford University)H-Index: 16
#2William L. Ellsworth (Stanford University)H-Index: 71
Author(s): Schoenball, M; Ellsworth, WL | Abstract: 漏2017. American Geophysical Union. All Rights Reserved. Much of Oklahoma and southern Kansas has seen widespread seismic activity in the last decade that is attributed to large-scale wastewater disposal into the Arbuckle group. Using a waveform-relocated earthquake catalog, we perform a systematic study of the activity on several hundreds of identified faults. We use 93 sequences with at least 30 events for a detailed analysis of their spatiote...
#1Wei Wu (NTU: Nanyang Technological University)H-Index: 57
#2Julia S. Reece (A&M: Texas A&M University)H-Index: 6
Last. Mark D. Zoback (Stanford University)H-Index: 97
view all 4 authors...
Slow slip on preexisting faults during hydraulic fracturing is a process that significantly influences shale gas production in extremely low permeability 鈥渟hale鈥 (unconventional) reservoirs. We experimentally examined the impacts of mineralogy, surface roughness, and effective stress on permeability evolution of slowly slipping faults in Eagle Ford shale samples. Our results show that fault permeability decreases with slip at higher effective stress but increases with slip at lower effective str...
Cited By65
#1Chuanhua Zhu (CEA: China Earthquake Administration)
#2Chisheng Wang (SZU: Shenzhen University)
Last. Xinjian Shan (CEA: China Earthquake Administration)
view all 5 authors...
Abstract null null The accuracy of earthquake catalogs limits the reliability of earthquake hazard assessment and the comprehensive understanding of earthquake mechanisms. Current seismic catalogs are based on the inversion of seismic wave data. The accuracy of their source parameters, which reflect the quantity and layout of seismic stations, and the crustal velocity model used, are often highly uncertain. The open source and popularization of Interferometric Synthetic Aperture Radar (InSAR) de...
#1Hongyu Yu (Geological Survey of Canada)H-Index: 7
#2Honn Kao (UVic: University of Victoria)H-Index: 34
Last. Bei Wang (UVic: University of Victoria)H-Index: 5
view all 4 authors...
#1Shiying Nie (SC: University of Southern California)H-Index: 1
#2Sylvain Barbot (SC: University of Southern California)H-Index: 30
Abstract null null Slow-slip events and tremors occur below the seismogenic zone of major plate boundaries. While the physics of aseismic slow-slip events is relatively well understood, the mechanics of seismogenic slow slip remains elusive because the conditions leading to slow or fast ruptures are thought to be mutually exclusive. Here, we explore fault dynamics in the parametric space of frictional conditions to show that seismogenic slow-slip events are the natural behavior of homogeneous fa...
#1Miao-Miao Kou (Qingdao University)H-Index: 2
#2Xinrong Liu (Chongqing University)H-Index: 5
Last. Mohsen Nowruzpour (A&M: Texas A&M University)H-Index: 3
view all 4 authors...
Abstract null null This work aims to experimentally investigate the failure mechanism and the spatiotemporal evolution of permeability in the fissured rock-like specimens under the coupled hydromechanical conditions. The different factors on the coupled hydromechanical loading/unloading failure mechanism are investigated. The experimental results of 3-D internal fracture morphology obtained from the X-ray CT scanning system coupled with 3-D reconstruction techniques indicate that the initial unl...
#1Ryota HinoH-Index: 35
#2Keiichi TadokoroH-Index: 14
Last. Laura M. WallaceH-Index: 44
view all 3 authors...
#1Xin LiH-Index: 130
Last. Wang Yao
view all 13 authors...
The matrix pores of a coalbed methane (CBM) reservoir are mostly nanoscale pores, with tiny pore throats and poor connectivity, which belong to the category of low鈥損ermeability gas reservoirs. The matrix particles and organic pore surfaces adsorb a large amount of CBM. These problems are the main reasons that limit the increase in CBM production. At present, the primary measure to increase CBM production is hydraulic fracturing. However, due to the technical characteristics and geological condit...
#1Paul Segall (Stanford University)H-Index: 84
#2Kyle R. Anderson (USGS: United States Geological Survey)H-Index: 17
Fault friction is central to understanding earthquakes, yet laboratory rock mechanics experiments are restricted to, at most, meter scale. Questions thus remain as to the applicability of measured frictional properties to faulting in situ. In particular, the slip-weakening distance [Formula: see text] strongly influences precursory slip during earthquake nucleation, but scales with fault roughness and is challenging to extrapolate to nature. The 2018 eruption of Kilauea volcano, Hawaii, caused 6...
#1Yuyun YangH-Index: 3
#2Eric M. DunhamH-Index: 28
It is widely recognized that fluid injection can trigger aseismic fault slip. However, the processes by which the fluid-rock interactions facilitate or inhibit slip are poorly understood and some a...
#1El铆as Rafn Heimisson (California Institute of Technology)H-Index: 9
#2John W. Rudnicki (NU: Northwestern University)H-Index: 38
Last. Nadia Lapusta (California Institute of Technology)H-Index: 27
view all 3 authors...
Faults in the crust at seismogenic depths are embedded in a fluid-saturated, elastic, porous material. Slip on such faults may induce transient pore pressure changes through dilatancy or compaction of the gouge or host rock. However, the poroelastic nature of the crust and the full coupling of inelastic gouge processes and the host rock have been largely neglected in previous analyses. Here, we present a linearized stability analysis of a rate-and-state fault at steady-state sliding in a fully-c...
#1Li Xin (SWPU: Southwest Petroleum University)
#2Zhang Jie (SWPU: Southwest Petroleum University)H-Index: 1
Last. Liu Xu (SWPU: Southwest Petroleum University)
view all 13 authors...
Shale gas reservoirs are tight reservoirs with ultralow porosity and ultralow permeability, and their matrix pores are mostly nanoscale. In addition, matrix particles and organic pore surfaces adsorb shale gas. These problems cause the production per well of shale gas to be lower than that of conventional natural gas. The use of hydraulic fracturing technology to exploit shale gas can achieve a good production increase effect. However, using this technology has some limitations caused by technic...
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.