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1-20 of 139
Keywords: seismicity
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Proceedings Papers
Complete detection of small earthquakes uncovers intricate relation between injection and seismicity
Available to PurchaseYangkang Chen, Alexandros Savvaidis, Omar M. Saad, Daniel Siervo, Dino Huang, Yunfeng Chen, Iason Grigoratos, Sergey Fomel, Caroline Breton
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4081978
... West Texas has been a seismically active region in the past decade due to the injection of industrial wastewater and hydrocarbon exploitation. The newly founded Texas seismological network has provided a catalog that characterizes the intense seismicity down to a magnitude of 1.5 Ml. However...
Proceedings Papers
A tale of two ML5.2s in northern Reeves County, Texas
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4100855
... allows for not only these largest two events to be characterized, but for a high-resolution picture of the smaller magnitude seismicity to be constructed. We observe that these two events are separated by a relatively quiescent block that is outlined by lower-magnitude seismicity. Although elevated pore...
Proceedings Papers
Induced seismicity to characterize hydraulic fracturing
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094480
... of the induced seismicity of the considered case study. seismicity exploration geophysicist american association geology characterize hydraulic microseismic cloud geologist reservoir characterization fracture dinske induced seismicity microseismic data downward direction hydraulic fracturing...
Proceedings Papers
Broadband magnetotelluric study of the axial fault region of the New Madrid Seismic Zone
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915597
... Presented here are three 2D resistivity cross-sections of the axial fault region within the New Madrid Seismic Zone (NMSZ), obtained using broadband magnetotelluric (MT) equipment, which surpasses the resolution of previous long period MT equipment. By integrating the seismicity distribution...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915510
... We describe an integrated data collection effort to understand and mitigate seismicity in the Midland Basin. Step rate tests (SRT), pulse tests, log and seismic data were leveraged to determine reservoir conditions and available storage capacity for the injection target, the Ellenburger Group...
Proceedings Papers
Fault intersection and induced seismicity: The effects on the induced stress field and the dynamic rupture, and their implications
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3910524
... Intersecting faults are often ignored in the geomechanical simulation of induced seismicity. To investigate the effects of fault intersection and the resulting reservoir geometry on induced seismicity, caused, for instance, by gas extraction, we have developed 3D geomechanical models considering...
Proceedings Papers
Structural characterization and rupture hazard assessment of faults in the Midland Basin, west Texas
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745325
... The Midland Basin of West Texas is an important petroleum producing region that has experienced an increase in the rate and magnitude of seismicity, with 50 ≥ 3.0 Mw events since 2019, many of which have been linked to oilfield practices, mainly the disposal of oilfield wastewater (SWD). SWD...
Proceedings Papers
Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring
Available to PurchaseGalina Simeonova, Dmitry Alexandrov, Toufik Chtouki, Petr Kolínský, Leo Eisner, Tijmen Jan Moser, Umair Waheed, Sherif Hanafy, Barbara Cox
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745723
... Both P-wave and S-wave velocity models are needed for location of induced seismicity from sparse monitoring arrays. While P-waves are usually known (reflection surveys or sonic logs), S-wave models need additional constrains. We use seismic noise interferometry to obtain Rayleigh surface waves...
Proceedings Papers
High-resolution seismic monitoring insights on stress and fault orientations in the Delaware Basin
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3749937
... A number of earthquakes in West Texas have been monitored with a relatively high-density seismic monitoring network since 2018. The number of stations enables precise locations and numerous moment tensors to be determined in this area. High-precision (relative) locations allow for fault...
Proceedings Papers
Active and passive monitoring of fault reactivation under stress cycling
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3750358
... Increased seismicity due to subsurface activities has led to increased interest in monitoring and seismic risk mitigation. In this study we combined passive and active acoustic monitoring methods to monitor fault sliding and reactivation in the laboratory. Acoustic emission (AE) and ultrasonic...
Proceedings Papers
Microseismic network design for dedicated geologic storage of carbon in the Los Angeles Basin
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751071
...-million-ton CO 2 injection scenario. The objective of network design is to meet specific detectability targets bas ed on induced seismicity, caprock leakage, and hidden feature risks. subsurface storage requirement exploration geophysicist upstream oil & gas seismicity international...
Proceedings Papers
Induced seismicity hypocentral depth stability and sensitivity to Vp/Vs in the South Delaware Basin, West Texas
Available to PurchaseAlexandros Savvaidis, Anthony Lomax, Robin Dommisse, Caroline Breton, Matthew Shirley, Vincent O’Sullivan
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751081
... Understanding the causative activity and host formation of induced seismicity requires accurate hypocentral depth determinations. Depth determination is greatly complicated in the Delaware basin by the presence of the shallow, high seismic velocity, Ochoan salt-evaporite layer and by the paucity...
Proceedings Papers
Direct observation of transient fluid pressure surge and resonance in a fluid-filled fracture
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751029
... We report lab results that a fluid-filled fracture can amplify the pressure carried by an incident seismic wave. We built a fracture model and placed our newly designed pressure sensors (Xfrac-H) inside the fracture to directly measure the fluid pressure in the fracture during wave propagation...
Proceedings Papers
Examples of fault steps controlling event migration in seismic swarms
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3738967
... This study provides spatiotemporal constraints on seismicity within fault zones and identifies key links between fault step and event migration. We show that event distributions in seismic swarms can image stepping geometries reminiscent of relay zones commonly observed along fault zones...
Proceedings Papers
Time-lapse monitoring of saltwater disposal in Kansas and Oklahoma using ambient noise
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3738748
... The substantial rise of seismic activity observed in both Oklahoma and Kansas from 2012-2016 has been widely linked to the similar increase in downhole injection of wastewater which occurred during that time. Injection of fluids into the subsurface is typically related to the extraction...
Proceedings Papers
Rapid geomechanical analysis of injection-related earthquakes
Available to PurchaseLei Jin, William Curry, Mark Zoback, Stefan Hussenoeder, Alexandros Savvaidis, J. P. Nicot, Peter Hennings, Peeyush Bhargava
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3740083
... disposal upstream oil & gas reservoir characterization exploration geophysicist equation hypothetical earthquake society american association permian basin inducement scenario international table 1 enhanced recovery seismicity injection applied geoscience modeling energy 10 Rapid...
Proceedings Papers
Induced seismicity risk analysis using a novel 3D modelling approach
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582441
... Current efforts to analyze the risk of induced seismicity caused by fluid injection, and to develop mitigation strategies with a rigorous scientific basis, are hindered by a lack of numerical models incorporating the full physics of the problem. We outline an approach in which realistic Earth...
Proceedings Papers
Potential factors contributing to induced seismicity near Hutchinson, Kansas
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424384
... Relative contributions of local and regional disposal practices to triggering earthquakes in central Kansas were established through spatiotemporal analysis of formation pressure, disposal volumes, and measured seismicity. A persistent earthquake swarm in Hutchinson, Kansas, is a concern...
Proceedings Papers
The influence of competing regional stress regimes on the generation of hydraulic fracturing-induced microseismicity
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3419416
... On 30 November 2018, a felt (ML 4.5) seismic event occurred ~16 km from Fort St. John, British Columbia, that has been attributed to ongoing hydraulic fracturing operations in the area. The mainshock was followed by two felt aftershocks (>ML 3.4) in the following hour. All of the events were...
Proceedings Papers
Further insights on the role of aseismic slip in hydraulic fracturing-induced seismicity
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3421625
... slip) for faults with high clay content or total organic carbon, as well as observations of the timings and locations of the seismicity. An alternative model was therefore proposed, in which distal, unstable regions of a fault are loaded by aseismic slip on stable regions of the fault stimulated...
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