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Keywords: seismicity
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Proceedings Papers

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

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

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...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424135
... stressed, pre-existing faults in the reservoir or in the overlying caprock. Recently, public attention has focused on infrequent reports of seismicity around CO 2 -EOR sites. To address this concern, we analyzed surface seismic data collected at a CO 2 -EOR site near Wellington, Kansas. We focused our...
Proceedings Papers

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

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428222
... We present an updated catalogue of seismicity in the Dallas-Fort Worth basin from 2008 to the end of 2019 using state-of-the-art phase picking and association methods based on machine learning. We then calculate the pore pressure and poroelastic stress changes on a monthly basis between 2000...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428435
... We report the successful way to improve oil and gas production using the results of the seismicity induced in conventional reservoirs by hydraulic stimulation, combined with well logs and seismic attributes. This allowed us to change the way of thinking the drainage radius in vertical wells...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427548
... Processing of combined microseismic data from two independent sparse seismic monitoring networks deployed at the (near-)surface around the Illinois Basin – Decatur Project (IBDP) injection site was done to characterize the detected seismicity by locations and inverted source mechanisms...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427552
... Traffic light systems are often used to reduce the probability of damaging seismicity during anthropogenic activities such as industrial mining, geothermal energy and hydraulic fracturing operations. Under such system operations are continued (“green”), amended (“amber”) or stopped (“red”) based...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423979
...Investigating the role of thermal stresses on induced seismicity Kyungjae Im* and Jean-Philippe Avouac, Geology and Planetary Science Division, California Institute of Technology Summary We investigate the influence of thermal stresses on induced seismicity in the context of geothermal energy...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215187
... ABSTRACT Fluid-induced seismicity may occur in a variety of industrial uses of the underground and in various geomechanical settings. Here I compare the clustering behavior of induced seismicity observed at various settings and analyze what earthquake clustering tells us about the physical...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214089
... during peak production activity and a following short period of relative inactivity. We analyze the collective behavior of microseismic events (Dynamic Parameters Analysis or DPA) together with passive seismic tomography and stress inversion to get an integrated picture of the complex stress evolution...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214180
... ABSTRACT Near-realtime seismic monitoring of fluid injection allowed management of induced seismicity during a soft stimulation of a 6.1-km-deep geothermal well near Helsinki, Finland. A total of 18,160 m3 of fresh water were pumped into crystalline rocks over 49 days in June-July 2018. Well...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216466
... magnitude hildyard rutqvist esg solutions waveform mpa reservoir characterization mansuy thomas annual meeting seismicity seg international exposition seismic response ground vibration stiffness esg solution amplitude decay rupture surface upstream oil & gas ground velocity university...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216484
... ABSTRACT The US midcontinent has seen a large increase in seismicity over the past decade. Spatiotemporal correlations of earthquakes and wastewater injections as well as pore pressure fluid models have been used to tie induced seismicity to high-rate wastewater disposal wells and hydraulic...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216344
... Presentation Type: Oral earthquake upstream oil & gas produced water discharge reservoir characterization stress state seismicity perturbation waste management reservoir geomechanics annual meeting duan szafranski equation pore pressure modeling injection timpson fault zone property...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216455
... ABSTRACT Recently, with the increase of dense seismic monitoring networks and the resultant massive seismic data all over the world (e.g., Groningen gas reservoir), the traditional geophysical algorithms have faced the "big data" and high dimensionality issues and become inefficient...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215062
... ABSTRACT Texas Seismological Network (TexNet) has been established to investigate patterns of induced seismicity across Texas. We improve detection sensitivity of TexNet to locatable events in West Texas using template matching. We use three earthquakes from three clusters as our templates...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216665
...). This produced water is commonly disposed of by injecting into non-productive, permeable formations. A current working theory is that large fluxes of water and pressure variations have caused an increase of seismic event frequency and intensity observable over the past 3 years. Cimarex Energy Co. collected...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216741
... ABSTRACT Two primary classes of seismic events are typically associated with hydraulic fracturing of unconventional reservoirs. Small microseismic dip- or oblique-slip events are interpreted as a direct indicator of the opening of hydraulic fractures. A second class of events that is sometimes...

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