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1-20 of 544
Keywords: geophone
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Proceedings Papers
Deep learning-based 3D microseismic event direct location using simultaneous surface and borehole data: An application to the Utah FORGE site
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-2024-4100633
... on the available data while avoiding their inherent shortcomings. geologist geology artificial intelligence geological subdiscipline borehole data neural network reservoir characterization dataset geophone applied geoscience & energy 10 american association hydraulic fracturing machine...
Proceedings Papers
Obtaining near-surface equivalent Q value from uphole survey data
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-2024-4093246
... There are problems with inconsistent seismic wavelets and geophone coupling in uphole survey data, which can reduce the accuracy of near-surface Q value. Firstly, conduct three amplitude spectrum ratio calculations on four uphole survey data from two shooting points and two receiving points...
Proceedings Papers
Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)
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-2024-4094074
... is a DAS-VSP dataset. geology geologist seismogram vertical seismic profile applied geoscience & energy 10 reservoir characterization receiver geophone interferometry procedure time window american association super-virtual interferometry dataset real time system exploration...
Proceedings Papers
Field tests of multicomponent seismic optical fiber sensor deployments
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-2024-4094273
... incorporate a vertical component. Three 1x1x1 m sensors (the Croissant) were installed and tested in 2023. Initial results show good comparability to Pretzel data as well as to surface geophone data converted to strain-rate. sensor pretzel expanded abstract geologist gauge length field data...
Proceedings Papers
Machine-learning based arrival-picking in continuous DAS recordings - Application to the Utah FORGE EGS project
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-2024-4097931
... needs to be automatic and in real-time. For the latter requirement, processing workflows using 3-component (3C) downhole geophones have been established in the industry for years, mainly for short-term monitoring, e.g. for hydraulic fracturing. With the increasing interest in CO2 sequestration...
Proceedings Papers
Seismic land acquisition designed to identify geology and rock properties over stacked pay interval using HTD 3D3C survey in the Permian Basin
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-2023-3912239
... Historically, Permian Basin converted wave 3D seismic surveys were acquired based on a P-wave acquisition design to image a range of depths that cover the hydrocarbon reservoir of interest. The three component geophones were occasionally included on land surveys. However, the design...
Proceedings Papers
3D installation of fiber cables for acquiring 3C DAS array data
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-W04-01
... the derived angles. Using the recovered amplitudes, we generate horizontal and vertical hodograms that are comparable to those of a 3C geophone at the DAS array center (x=0, y=0). Our DTT and waveform modeling results show that a 3D optimally distributed fiber cable can effectively acquire 3C DAS array data...
Proceedings Papers
Comparing DAS and geophone data and imaging for monitoring CO 2 sequestration
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-2022-3734299
... Monitoring CO 2 sequestration is critical in carbon capture and storage (CCS) to ensure storage safety. Compared to conventional geophone data, distributed fiber optic sensing (DFOS) can provide better spatial coverage with finer sampling in a more cost-effective fashion. Based on a vertical...
Proceedings Papers
Evaluating HD weathering surveys and surface seismic with DAS in a sand dune environment
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-2022-3735875
... and compare them to 3C geophones and straight DAS cables. We further evaluate three different source types considered for various applications. Field trial provides comprehensive datasets for assessing the initial performance of DAS cables in sand dune environments for surface seismic with DAS...
Proceedings Papers
Anisotropic properties in the sedimentary and granite rocks at the Utah FORGE geothermal site revealed by shear-wave splitting of 3-component borehole microseismic data
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-2022-3750065
... enhanced geothermal systems. We apply a shear-wave splitting analysis method, based on eigenvector rotation, to six induced micro-earthquakes recorded using a 3-component geophone array deployed in a borehole at the Utah FORGE (Frontier Observatory for Research in Geothermal Energy) site. We determine...
Proceedings Papers
Siting recharge basins and improving groundwater models using multiple survey methods in Southern California
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-2022-3751619
... and direct investigation. exploration geophysicist southern california international energy 10 upstream oil & gas siting recharge basin bedrock aquifer collier geophysics recharge basin resistivity applied geoscience lsjb geophone reservoir characterization american association...
Proceedings Papers
Verification of dynamic strain field measurements made with DAS during active-source vibration by quantitative comparison to geophones
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-2022-3751672
... The measurements made with distributed acoustic sensing (DAS) are known to be proportional to either strain or strain-rate, depending on the system configuration. However, quantitative comparisons between measurements made with DAS and geophones for surface arrays have been difficult because...
Proceedings Papers
Subsurface monitoring during tunnel excavation area using auto-correlation
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-w12-01
... upstream oil & gas geophone green information american association society geophysics seismic interferometry Subsurface monitoring during tunnel excavation area using auto-correlation Enhedelihai Nilot*, Gang Fang*, Yun Zhou Tan*, Yanlong Niu*, Heng Zhang and Yunyue Elita Li *Sustainability...
Proceedings Papers
Quantitative comparison of active and passive surface wave data obtained from distributed acoustic sensing (DAS) and three-component geophones
Available to PurchaseKoichi Hayashi, Hayato Nonaka, Peter Hubbard, Yasuhiro Yokota, Kensuke Date, Kazuhiko Masumoto, Taka’aki Taira, Kenichi Soga
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-2022-3738106
... We carried out comparative data acquisition of active and passive surface wave methods using distributed acoustic sensing (DAS) and three-component velocity meters (geophone) at a research field located in Richmond, California, U.S. Several different fiber optic sensor cables were deployed...
Proceedings Papers
Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion
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-2022-3742131
...% reduction in standard deviation compared to the standard processing techniques. upstream oil & gas correction impedance frequency spectrum international american association reservoir characterization enhancing conventional vsp data wavefield inversion applied geoscience geophone...
Proceedings Papers
Q-value survey technology and case study of low-velocity layer in desert area of Tarim Basin
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-2021-3583377
... & gas sand dune exploration geophysicist 10 new waveform q-value survey technology bottom geophone case study geophone different thickness absorption attenuation q-value waveform Q-value survey technology and case study of low-velocity layer in desert area of Tarim Basin Peng Gengxin 1...
Proceedings Papers
A comparison of collocated surface and shallow borehole arrays for microseismic monitoring
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-2021-3583465
... sub array artificial intelligence sb array borehole geophone reservoir characterization microseismic monitoring superstation array expanded abstract exploration geophysicist 10 shallow borehole array surface array channel count sensor machine learning upstream oil & gas reference...
Proceedings Papers
Which sensor for nodal seismic: Recording acceleration or velocity?
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-2021-3583516
... Land seismic is evolving towards denser surveys, single sensor recording, and lower frequencies. A number of new nodal systems have been introduced to facilitate this evolution: some use moving coil geophones, while others use new sensors, based on MEMS or piezoelectricity, which record...
Proceedings Papers
Anonymous vehicle identification on seismic spectrograms
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-2021-3584287
... sensors in cities has been shown to have a high coherence with traffic flow. To use seismic data for traffic monitoring, it is important to achieve interpretive traffic information rapidly and accurately from seismic characteristics. We analyze the seismic signals recorded by a group of wireless geophones...
Proceedings Papers
Estimation of Rayleigh to Love waves ratio from ambient noise recorded by DAS
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-2021-3585407
... geophone Estimation of Rayleigh to Love waves ratio from ambient noise recorded by DAS Yumin Zhao*, Yunyue Elita Li, and Bei Li, Sustainability Geophysics Project, National University of Singapore SUMMARY High frequency (above 1 Hz) urban ambient noise, mainly generated by motor vehicles, may contain...
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