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Keywords: noise
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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-2021-3583209
... the best energy response. By theoretical analysis, numerical simulation, and field data tests, we examine the degree of noise suppression, seismic reflection signal weakening, spectrum changing, and distortion of amplitude variation with offset under different array parameter combinations. By evaluating...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594610
... In seismic exploration, due to the influence of the surrounding environmental factors, the seismic records are often accompanied by the interference of random noise, which greatly reduces the quality of seismic data and brings difficulties to the subsequent data processing and interpretation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583419
... Marine controlled source electromagnetic (CSEM) method is widely used for submarine resources detection. The amplitudes of marine CSEM signals decay exponentially with the augment of offset. When the offset is large, the signals are easily contaminated by various kinds of noises...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583879
... promoting prior information are utilized at each stage to distinguish signal from blending noise in the transform domain. We discuss common geophysical challenges related to acquisition environments such as land, towed-streamer, ocean bottom node (OBN) and how the proposed approach can be shaped to address...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583872
... network architecture with an adaptive stochastic gradient descent optimizer using back-propagation to attenuate noise. To achieve compelling performance, we incorporate bottleneck residual blocks, batch normalization, and ReLU pre-activations into the network architecture. We use field seismic from...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583677
... geoscience expanded abstract noise acquisition abma spliced shot shot time inversion problem original receiver gather receiver gather successive shot Deblending of single-source self-interference in a deep water marine 2D survey Tao Jiang*, Yifeng Jiang, In-Depth Compressive Seismic Inc.; Joel...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584059
..., it requires the acquisition geometry of field data and the bathymetry of the ocean floor to be known to create training data with the approximate configuration. We demonstrate with a numerical example the ability of our solution to remove ghost reflections and show that it is robust to random noise, even when...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3576612
... seismic data standard deviation applied geoscience nlbf semblance noise desert environment Quality control of 3D prestack land seismic data with a focus on data enhancement Andrey Bakulin, Ilya Silvestrov, EXPEC Advanced Research Center, Saudi Aramco; Maxim Protasov*, Institute of Petroleum...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3585407
... High frequency (above 1 Hz) urban ambient noise, mainly generated by motor vehicles, may contain both Rayleigh and Love waves. Due to their different physics, a prior knowledge of wave type information of surface waves in the extracted crosscorrelogram is essential to an accurate inversion...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582046
.... Recently, the instrument has been updated to operate in coincident coil mode, so the transmitter coil can also be used to receive the NMR signal. For remote reference noise cancellation, the instrument can connect to multiple receiver units throughWiFi. The effective peak current of the system is 105...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582875
... Driven by the notion that blending noise may materially increase the background noise level and obscure the interpretation of weak time-lapse (4D) signals related to subtle reservoir changes, the industry has not yet seen any simultaneous-source (sim-source) surveys acquired for reservoir...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583068
... Monochromatic noise, such as the electromagnetic interference from power lines, is a well-known important problem in seismic signal processing. Removal of this contamination is challenging due to the time-varying nature of the fundamental frequency of monochromatic noise. We propose...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583002
... challenge silvestrov barrett model upstream oil & gas acquisition geometry receiver noise desert environment Understanding acquisition and processing challenges in the desert environment through SEAM Arid and Barrett models Andrey Bakulin and Ilya Silvestrov, EXPEC Advanced Research Center...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583439
... variations, like those caused by seasonal changes. In practice, data processing and matching techniques are required to improve the repeatability of the data. This study proposes a deep learning approach for post-stack trace-by-trace matching to reduce the remaining 4D noise. We utilize the sequential nature...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583394
... There are many kinds of noises in seismic data, which makes it important to denoise the seismic data before analyzing the stratigraphic structures. In this paper, we propose a novel denoising approach combining traditional denoising method and convolutional neural network. Noise-free references...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583430
... geophysicist 10 noise iteration number Effect analysis of on seismic migration imaging in nonuniform sampling Ni Yudong*, Jiang Fuhao, Deng Zhiwen, Liu Xingang, Yan zhihui, and He Baoqing, BGP,CNPC Summary According to the research of seismic nonuniform sample technique, based on the same space sample...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583248
... A staunch companion to seismic signals, noise consistently hinders processing and interpretation of seismic data. Borrowing ideas from the field of computer vision, we propose the use of self-supervised deep learning for the task of random noise suppression. These techniques require no clean...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583393
... As a robust feature extraction method, deep learning has made significant progress in attenuating noise from seismic datasets. One critical assumption of deep learning for prediction is that test and training data should arise from the same distribution. Poststack data from a given survey can...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583282
... reconstruction method, and noise model matching subtraction, we can accurately predict the surface wave noise, and make this procedure effectively apply in the processing of massive data. Through the test of actual data, this method can effectively remove the surface wave, protect the effective signal...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583704
... Ambient noise interferometry is based on the assumption of normally distributed noise sources, which is often hard to be satisfied in urban areas where local noise sources may be dominant in specific directions and times. Hence, understanding the characteristics of urban seismic noises...

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