Search Results - "Tang, Genyang"

Bulk modulus for fluid-saturated rocks at high frequency: modification of squirt flow model proposed by Mavko & Jizba by Zhao, Liming, Chen, Tongjun, Mukerji, Tapan, Tang, Genyang

“…SUMMARY The squirt flow model, proposed by Mavko & Jizba, has been widely used in explaining the frequency-related modulus and velocity dispersion between…”
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Bulk modulus for fluid-saturated rocks at intermediate frequencies: modification of squirt flow model proposed by Gurevich et al by Zhao, Liming, Chen, Tongjun, Tang, Genyang

“…SUMMARY Squirt flow is an essential cause of wave dispersion and attenuation in saturated rocks. The squirt flow model, proposed by Gurevich et al., has been…”
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Geophysics-steered self-supervised learning for deconvolution by Chai, Xintao, Yang, Taihui, Gu, Hanming, Tang, Genyang, Cao, Wenjun, Wang, Yufeng

“…SUMMARY Deep learning (DL) has achieved remarkable progress in geophysics. The most commonly used supervised learning (SL) framework requires massive labelled…”
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Stress and frequency dependence of wave velocities in saturated rocks based on acoustoelasticity with squirt-flow dissipation by Ba, Jing, Wei, Yijun, Carcione, José M, Adam, Ludmila, Tang, Genyang

“…SUMMARY We perform seismic and ultrasonic measurements in carbonate and shaley sandstone samples as a function of differential pressure. The velocities show a…”
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Dual attenuation peaks revealing mesoscopic and microscopic fluid flow in partially oil-saturated Fontainebleau sandstones by Zhao, Liming, Tang, Genyang, Sun, Chao, Zhao, Jianguo, Wang, Shangxu

“…SUMMARY We conducted stress–strain oscillation experiments on dry and partially oil-saturated Fontainebleau sandstone samples over the 1–2000 Hz band at…”
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Three-dimensional numerical modelling of the drained/undrained transition for frequency-dependent elastic moduli and attenuation by Sun, Chao, Tang, Genyang, Zhao, Jianguo, Zhao, Liming, Long, Teng, Li, Min, Wang, Shangxu

“…SUMMARY In fully fluid-saturated rocks, two common phenomena are documented both experimentally and theoretically for frequency-dependent elastic moduli and…”
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Role of pressure and pore microstructure on seismic attenuation and dispersion of fluid-saturated rocks: laboratory experiments and theoretical modelling by He, Yan-Xiao, Wang, Shangxu, Xi, Bo, Tang, Genyang, Yin, Hanjun, Zhao, Liming, Sun, Chao, Ma, Xiaoyi

“…SUMMARY Understanding the effects of pressure and rock microstructure on seismic elastic properties of fully saturated rocks is of considerable importance in a…”
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A novel expression of the spherical-wave reflection coefficient at a plane interface by Li, Jingnan, Wang, Shangxu, Tao, Yonghui, Dong, Chunhui, Tang, Genyang

“…Abstract The spherical-wave reflection coefficient (SRC) describes the reflection strength when seismic waves emanating from a point source impinge on an…”
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Coupled effects of pressure and frequency on velocities of tight sandstones saturated with fluids: measurements and rock physics modelling by Han, Xu, Wang, Shangxu, Tang, Genyang, Dong, Chunhui, He, Yanxiao, Liu, Tao, Zhao, Liming, Sun, Chao

“…SUMMARY Elastic moduli and velocities of tight sandstones are strongly influenced by rock-frame heterogeneity, pore microstructure and fluid in addition to…”
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The Linearized Bregman Method for Frugal Full-waveform Inversion with Compressive Sensing and Sparsity-promoting by Chai, Xintao, Tang, Genyang, Peng, Ronghua, Liu, Shaoyong

“…Full-waveform inversion (FWI) reconstructs the subsurface properties from acquired seismic data via minimization of the misfit between observed and simulated…”
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Pressure and Fluid Effect on Frequency‐Dependent Elastic Moduli in Fully Saturated Tight Sandstone by Yin, Hanjun, Zhao, Jianguo, Tang, Genyang, Zhao, Liming, Ma, Xiaoyi, Wang, Shangxu

“…We developed a system to explore the effects of pressure and fluid viscosity on the dispersion and attenuation of fully saturated tight sandstones, especially…”
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Theoretical prediction of elastic modulus at different states and squirt-flow-related attenuation: extension of Cracks-Pores Effective Medium model by Zhao, Liming, Yin, Hanjun, Chen, Tongjun, Tang, Genyang, Sun, Chao, Zhang, Mingjin, Zhu, Ningjun, Li, Fanjia

“…SUMMARY Squirt flow plays an essential role in elastic modulus dispersion and attenuation for fluid-saturated cracked porous rocks. The Mavko–Jizba model and…”
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A new rock physics model for fractured oil shale reservoirs in Mahu oil field by Hongyan, Qi, Caiguang, Liu, Tingming, Tang, Gang, Chen, Zhenlin, Wang, Liang, Li, Qingyong, Luo, Genyang, Tang

“…The exploration of unconventional reservoirs such as oil shale has become a focus of research in the oil/gas industry, but due to the diversity of lithology…”
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Determination of rock acoustic properties at low frequency: A differential acoustical resonance spectroscopy device and its estimation technique by Zhao, Jianguo, Tang, Genyang, Deng, Jixin, Tong, Xiaolong, Wang, Shangxu

“…A laboratory device, Differential Acoustic Resonance Spectroscopy (DARS), has been developed to investigate the acoustic properties of rock materials below 1…”
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Waste pulp chemical-looping gasification using Ni-modified electroplating sludge as an oxygen carrier by Tang, Genyang, Gu, Jing, Wei, Guoqiang, Yuan, Haoran, Chen, Yong

“…[Display omitted] •Over 90 % waste pulp converting to syngas at 850 °C in chemical looping gasification.•wt.% NiO modification increased syngas yield by 29%…”
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Prediction of dispersion and attenuation on elastic wave velocities in partially saturated rock based on the fluid distribution obtained from three-dimensional (3D) micro-CT images by Sun, Chao, Fortin, Jérôme, Tang, Genyang, Wang, Shangxu

“…Elastic wave attenuation in partially saturated porous rock is primarily due to wave-induced fluid flow, which arises from the contrast in compressibility…”
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Stable and efficient Q-compensated least-squares migration with compressive sensing, sparsity-promoting, and preconditioning by Chai, Xintao, Wang, Shangxu, Tang, Genyang, Meng, Xiangcui

“…The anelastic effects of subsurface media decrease the amplitude and distort the phase of propagating wave. These effects, also referred to as the earth's Q…”
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Some remarks on Q‐compensated sparse deconvolution without knowing the quality factor Q by Chai, Xintao, Peng, Ronghua, Tang, Genyang, Chen, Wei, Li, Jingnan

“…ABSTRACT The subsurface media are not perfectly elastic, thus anelastic absorption, attenuation and dispersion (aka Q filtering) effects occur during wave…”
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A physical modelling study of waveform amplification effects of reservoir heterogeneity on time‐lapse seismic attribute analysis by He, Yan‐Xiao, Wang, ShangXu, Dong, Chunhui, Tang, Genyang, Zhang, Jialiang, Shi, Peidong, Feng, Zhanxun, Zhang, Fengqi, Liu, Junzhou, Li, Guofa, Shi, Lei

“…Hydrocarbon depletion causes fluid saturation and pressure changes, resulting in perturbations in reservoir elasticities and, hence, observable time‐lapse (or…”
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Depositional and Diagenetic Controls on Macroscopic Acoustic and Geomechanical Behaviors in Wufeng-Longmaxi Formation Shale by Deng, Jixin, Wang, Chongyi, Zhao, Qun, Guo, Wei, Tang, Genyang, Zhao, Jianguo

“…This integrated study provides significant insight into parameters controlling the dynamic and static elastic behaviors of shale. Acoustic and geomechanical…”
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