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Keywords: magnitude
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426563
.... We located over 3700 events with down to a magnitude of −1.79. The processed data set provided an interpretable catalog including moment tensors to help evaluate the performance of the fracture treatment. This procedure can provide a model of how to optimize monitoring budgets to deliver results for...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428135
... roots in the physical laws. Benchmarking against the reported magnitude of M4.8 Timpson (TX) earthquake, we provide additional constraints on fault frictional properties and background stress. Presentation Date: Tuesday, October 13, 2020 Session Start Time: 9:20 AM Presentation Time: 9:45 AM...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427552
... on the local event magnitude. Accessing accurate microseismic magnitudes is challenging due to unquantified uncertainties, which cannot be neglected in TLS because they can exceed a whole magnitude unit - large enough to make a difference between a continuation as planned (“green”) and an immediate...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427707
... deformation characteristics of rocks? To better understand such processes, we study the acoustic emissions (AE), ultrasonic velocity, and strains on deforming rocks, which are subjected to reactive fluids. We describe the development of an AE system, which enables us to track magnitude, location, and source...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215046
... ABSTRACT In geophysical imaging, uncertainty quantification is crucial for decision making. 4D seismic imaging aims to accurately recover changes that take place within a reservoir. These changes are typically characterized by their magnitude and their extent. We perform a Bayesian inversion...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216466
... seismicity hildyard rutqvist esg solutions waveform mpa magnitude reservoir characterization mansuy thomas annual meeting seg international exposition rupture surface upstream oil & gas Hildyard , M. , 2007 , Manuel rocha medal recipient wave interaction with underground...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216781
... D. L. , Wells , 1994 , New empirical relationships among magnitude, rupture length : Bulletin of the Seismological Society of America , 84 , 974 – 1002 . Eisner , L. , B. J. , Hulsey , P. , Duncan , D. , Jurick , H. , Werner , and W. , Keller...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216796
... ABSTRACT We present a quantitative framework for extending magnitude calculations to microseismic imaging approaches. We show that imaging approaches can overcome certain limitations in more traditional magnitude calculations based on peak motions or those needing sufficient bandwidth to fit...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216743
... characterization subsurface storage gorecki co 2 october 2018 upstream oil & gas conductivity northeast-southwest direction october 2017 annual meeting field campaign transfer function magnitude seg international exposition csem data receiver station frequency electrode structural geology...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216665
... continuous waveforms utilizing a proprietary array in the Delaware Basin from February, 2016, through February, 2019, with its West Texas Array (WTA). With a completeness magnitude of 0.7, the proprietary array provides the most comprehensive earthquake catalogue in this region over this timeframe. This...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216218
... operation parameters during hydraulic fracturing. A detailed analysis of microseismicity source parameters is performed to a legacy dataset of four hydraulic fracture treatments of the Cotton Valley formation in 1997 at the Carthage gas field of east Texas. We analyze magnitude-frequency distributions of...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216004
... characterization upstream oil & gas lsq solution match filter filter magnitude spectrum square filter baseline annual international meeting noise seismic data lsq filter seg international exposition joint matching filter magnitude matching sb filter Gallop , J. , 2011 , Midpoint...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216307
... proposed workflow. Presentation Date: Wednesday, September 18, 2019 Session Start Time: 1:50 PM Presentation Time: 2:15 PM Location: 221D Presentation Type: Oral fault dip magnitude fault probability deep learning machine learning fault detection neural network artificial intelligence...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3199882
.../1.1451337 . amplitude elastic parameter anisotropic layer effective elastic parameter estimation minimum number fourier coefficient reservoir characterization thomsen parameter annual meeting quevedo magnitude seismic anisotropy estimation equation azimuth sector azimuth seg...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3198472
... stabilization framework. Moreover, an explicit stabilization term in the time-space domain can be formulated with an assumption that the exponent of the chosen window is a power function of the magnitude of wavenumber. This explicit stabilization form has potential to provide a more convenient workflow for...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214180
... induced-earthquake rates, locations, magnitudes, and evolution of radiated seismic versus hydraulic energy, pumping was either stopped or varied. This procedure avoided the nucleation of a regulator mandated maximum magnitude M 2.1 induced earthquake. These results are consistent with a crack-stability...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214852
... Start Time: 9:20 AM Location: Poster Station 4 Presentation Type: Poster eaton pressure point reservoir characterization seg international exposition seismic velocity upstream oil & gas magnitude mechanism basin pore pressure prediction annual meeting disequilibrium compaction...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215453
.... Significant duration () of strong ground motion is calculated, and it suggests that systematically decreases with PGA. However, no strong correlation is observed regarding hypocentral distance, magnitude, and . Presentation Date: Tuesday, September 17, 2019 Session Start Time: 1:50 PM Presentation Start...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995006
... properties of the reservoir from 3D seismic as well as well log data. This study from the Permian Basin looks at the microseismic data from the treatment of 11 well laterals in both the upper and the middle Wolfcamp formations (UWC & MWC) and proposes the use of frequency magnitude or "b-value...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2992460
... In earthquake seismology, the seismicity magnitude distributions generally follow the well-known Gutenberg-Richter relationship with slope defined by the b-value; yet, observed drops from b?2 to b?1 have been interpreted to indicate fault activation during hydraulic-fracturing completions. A...

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