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Keywords: waveform
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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-2023-3904704
..., we study the intrinsic relationship between seismic waveform and reservoir parameters, and propose a geostatistical seismic inversion method based on seismic waveform constraints. First, we use the correlation coefficient of seismic data to measure the similarity of seismic waveform, and guide...
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-2023-3910882
... events and corresponding acoustic waveforms. We introduce a deep learning-based method namely, probabilistic multilayer perceptron (PMLP), to predict MEQ locations based on time lags from the simulated waveforms. Unlike most conventional deep learning methods, the PMLP enables uncertainty quantification...
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-2023-3917108
... association geologist dataset artificial intelligence international decomposition noisy waveform application geophysical prospecting sery society energy 10 receiver waveform applied geoscience algorithm threshold A simultaneous denoising and event-picking approach using supervised machine...
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-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
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-2022-3747058
... Ultrasonic measurements on rock samples are widely used for calibration of rock properties estimated from sonic log as well as surface and borehole seismic data. Analysis of these measurements involves picking traveltimes of P and S waves from waveforms recorded by ultrasonic transducers...
Proceedings Papers
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-2022-3748075
... The attenuation factor (Q) is essential in waveform inversion. This paper presents systematic and quantitative studies of Q on seismic waveforms of different frequencies in waveform inversion. The elastic waveform inversion (without Q update) of data with different Q values results in a slower...
Proceedings Papers
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-2022-3738424
... time. Firstly, we use synthetic waveforms from thousands of finite difference simulations as initial training dataset to train a deep-learning network which is modified from a network in speech separation. Then the trained model is used to predict the field data through an active learning strategy...
Proceedings Papers
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-2022-3740415
... instabilities to ultimate fracture prediction, like data processing and NDE calculation. On this basis, a new workflow is established on a wavefield separation that aims to elevate waveform quality by suppressing undesired noises and reflections. Then NDE calculation is reformulated as an inversion problem...
Proceedings Papers
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-2022-3745590
... in the interface auto-picking module. Finally, the coordinate transformation module maps arrival times on the array waveforms in the time-depth profile at each measurement azimuth. The proposed processing flow works well for the dataset from numerical simulations and a calibration well and the feature of cement...
Proceedings Papers
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-2022-3745490
... to the reservoir characteristics in the study area, this paper described the distribution of high-quality reservoirs by using seismic waveform indication inversion technology and comprehensive evaluation technology based on proportional compression fusion. Combined with the actual drilling data, the inversion...
Proceedings Papers
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-2022-3751189
... Heterogeneous elastic property variation in the rock formation surrounding a borehole can cause wave scattering in the borehole acoustic waveforms, which in turn can be used to characterize the formation heterogeneities. Considering the elastic wave scattering caused by the variation of the near...
Proceedings Papers
Publisher: 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
... layer higher and higher. In order to solve the problem of poor with different thickness were evenly and continuously representativeness and the influence of ghost reflection arranged on the dunes. By intercepting the negative caused by insufficient quantity of Q-value survey, a waveform of the first...
Proceedings Papers
Publisher: 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-2021-3581352
... A matched filter is developed and applied to sonic waveforms acquired by a slim dipole tool for extracting event signals while attenuating mode waves for shear-wave sonic imaging. Sonic imaging uses waveforms acquired by a sonic logging tool in a fluid-filled borehole. The event signals...
Proceedings Papers
Publisher: 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-2021-3581183
... is verified through the comparison of ground force and seismic data between AHS and conventional low-dwell sweep. reservoir characterization signal-to-noise ratio low frequency bandwidth field experiment seismic data low-dwell sweep ground force applied geoscience waveform harmonic distortion...
Proceedings Papers
Publisher: 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-2021-3569993
... and interpret formation hosting mud-filled borehole model is constructed, the BHR echoes from different subsurface media in time- and two types of data sets are obtained from the model with frequency domain. We firstly extract the radar waveforms at fixed conductivity or relative permittivity. The classical...
Proceedings Papers
Publisher: 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-2021-3593211
... cable das fiber reservoir characterization applied geoscience wavefield energy flux acquisition waveform das data microseismic monitoring time imaging sensor event location rti Reverse time imaging of DAS microseismic data Zhenhua Li , Fire y Imaging, and Mirko van der Baan, University...
Proceedings Papers
Publisher: 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-2021-3594274
... point labeled data exploration geophysicist 10 perturbation waveform ssl horizon identification yellow arrow horizon point vat Seismic horizon identi cation using semi-supervised learning with virtual adversarial training Fu Wang Xinming Wu , and Huazhong Wang , Tongji University...
Proceedings Papers
Publisher: 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-2021-3594469
... It is very challenging to accurately invert for moment tensors of microseismic events recorded using a single-borehole geophone array. Full-waveform moment-tensor inversion uses the phase and amplitude of microseismic waveforms to invert for the moment tensor of a microseismic event...
Proceedings Papers
Publisher: 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-2021-3594700
... scholars have proposed wave clustering methods. Among them, for waveform classification, the existing method usually uses equal-thickness time windows to select the target layer for waveform clustering analysis. For areas where the thickness of the reservoir varies greatly in vertical and horizontal...
Proceedings Papers
Andrea Scarinci, Youssef Marzouk, Chen Gu, Michael Fehler, Umair bin Waheed, Sanlinn Kaka, Ben M. Dia
Publisher: 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-2021-3594806
... Model error is endemic to full waveform inversion (FWI). Bayesian moment tensor inversion is an example of a linear inverse problem that can be heavily affected by errors in the velocity model. The choice of misfit function plays a crucial role in mitigating the effects of these errors. We...
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