Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... wave lengths” when describing the far-field distance from a point source. They give an equation for the P-wave potential caused by a point source (Weyl...

Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)

Ritesh Kumar Sharma and Robert James Ferguson

Search and Discovery.com

... (Tsvankin, 2001). For VTI media the wave equation separates into a coupled pair of the equations for the P-SV waves and into a single equation for the pure...

Fast viscoacoustic forward modeling method based on U-net Fourier neural operator

Wenbin Tian, Yang Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... fractional visco-acoustic wave equation. Diverging from FNO, U-FNO incorporates an additional U-Fourier layer after the conventional Fourier layer...

Oscillation Ripples: DISCUSSION

Cyril Galvin

Journal of Sedimentary Research (SEPM)

...------------------------ MOGRIDGE, G. R., AND KAMPHUIS, J. W., 1973, Experiments on bed form generation by wave action: Proc. 13th Conf. Coastal Engr., p...

Recent Developments in Marine Acquisition and Data Processing Technology to Improve Imaging through Complex Overburdens

Timothy Bunting, Jerry Kapoor, Nick Moldoveanu, Jeremy Browett

GCAGS Transactions

... overburdens and adoption of the full two way wave equation and use of complex earth models for imaging. The combination of these technologies has...

New perturbation-based traveltime approximation for elastic VTI media

Shibo Xu, Alexey Stovas, Xingguo Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... University Summary We propose a perturbation-based approximation for P- and S-wave traveltime in a transversely isotropic medium with a vertical symmetry...

Influences of Pore Fluid to Parigi Carbonates Seismic Parameter: A Carbonates Seismic Rock Physics Study

Bagus Endar B. Nurhandoko, John Adler, Usep Mohamad Ishaq, Erwin Riyanto, Mahatman L. Budi, Eko Bambang Supriyanto, Susilowati

Indonesian Petroleum Association

... can be write as : ρ B = (1 − φ) ⋅ ρ m + φ ⋅ ρ f (4) where ρm is matrix density and ρf is fluid density. From equation 2, P-wave velocity can write...

Relative Quantities of Suspension Versus Bed-Load Transport on Beaches

Paul D. Komar

Journal of Sedimentary Research (SEPM)

... (1953b), Caldwell (1956) and Komar and Inman (1970) relating the total sand transport rate to the wave conditions. Equation (3) provides us with an FIG...

ABSTRACT: Predicting Pressure and Saturation Changes from Elastic Wave Velocities in a CO2-Flooded Coal Bed Methane: A Modeling Study, by Harris, Jerry M., Olusoga Martins Akintunde, Tapan Mukerji, Jaime Urban; #90026 (2004)

Search and Discovery.com

Abstract: Seismic Anisotropy Modeling from Well Log in Talang Akar Formation, South Sumatra, Indonesia, by Thariq Guntoro, Intan Andriani Putri, and Dwa Desa Warnana, #90188 (2014)

Search and Discovery.com

S1P and S2P separation and shear wave splitting correction for SVP data

Yuan Yuan Yue, Zhongping Qian, Hongmei Nie, Pengyuan Sun, Zhiwen Deng, Jianfeng Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...S1P and S2P separation and shear wave splitting correction for SVP data Yuan Yuan Yue, Zhongping Qian, Hongmei Nie, Pengyuan Sun, Zhiwen Deng...

Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)

Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

...) is examined in the present study, using synthetic data for the acoustic wave equation problem with boundary. Different frequency impulsive sources...

Correlation of seismic velocity and density of metasandstone from Kati Formation, Seri Iskandar, Perak, Malaysia

Norsyafiqah Salimun, Abdul Ghani Rafek, Khairul Arifin Mohd. Noh

Geological Society of Malaysia (GSM)

... velocity measured and tabulated in Table 1. The wave velocity calculated using the following equation: Velocity = d x t-1 ----------------------- (1...

Frequency-dependent reflection characteristics of single thin layer and waveform inversion

Zhengyang Kuai, Danping Cao, Chao Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... obtained from the propagation matrix and eigenvector matrix: (1) Q=D-1 D2 E2 D-1 D3 1 2 QUU QUD (2) Q z1 ,z2 = QDU QDD Q in Equation 1 is the wave...

Stepwise Regression in the Earth Sciences: A Coastal Processes Example

James H. Balsillie, William F. Tanner

Environmental Geosciences (DEG)

... included bed slope, wave steepness considerations, the surf similarity parameter, and other parameters in endeavors to “refine” predictive power...

Impact of Shear Velocity Estimation on Wellbore Stability, #42351 (2019).

Charles Otoghile, Chima Cyril Udeze

Search and Discovery.com

... analyzed using Greenberg and Castagna and Mudrock line equations. The aim is to determine how reliable the Greenberg and Castagna equation...

Viscoelastic anisotropic seismic wave modeling using recursive convolution method and curvilinear collocated finite difference method for different boundaries

Chao Jin, Bing Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

..., UAE Summary We proposed a generalized viscoelastic anisotropic wave equation based on the General Maxwell Body, which can accommodate various medium...

Oscillatory Ripple Marks and the Evaluation of Ancient Wave Conditions and Environments

Paul D. Komar

Journal of Sedimentary Research (SEPM)

... and ripples produced. For a given d0, we see from equation (2) that this places an upper limit on the possible range of the wave period T. This limit...

Abstract: Joint PP and PS AVO Inversion Based on Zeopprtiz Equations; #90171 (2013)

Tiansheng Chen and Xiucheng Wei

Search and Discovery.com

... to the linearized approximations of PP and PS is first order equation of Taylor series, so equation 4 can be generalized to: b b y = a pp x pp + c pp (PP wave...

Abstract: Joint PP and PS AVO Inversion Based on Zeopprtiz Equations; #90171 (2013)

Tiansheng Chen and Xiucheng Wei

Search and Discovery.com

... to the linearized approximations of PP and PS is first order equation of Taylor series, so equation 4 can be generalized to: b b y = a pp x pp + c pp (PP wave...

Estimation of Gas Reservoir Boundary by AVO Analysis

Alfian D. Santoso, L. Hendrajaya, F. Makhruf, Purwoko, S. Ardisasmita

Southeast Asia Petroleum Exploration Society (SEAPEX)

... equation in order to clarify the relationship between reflection coefficient the incident angle of P wave. The equation is written as follows (Verm...

3D anisotropic seismic simulation for fracture prediction in Sichuans Wufeng shale gas reservoirs

Xiang Li, Ziduo Hu, Chunhui Xie, Yancan Tian, Wei Liu, Xinyu Fang, Gang Yao

International Meeting for Applied Geoscience and Energy (IMAGE)

... to simplify the quasi-P (qP) wave equation from the elastic wave equation in Horizontal Transverse Isotropy (HTI) media, thereby enabling more accurate...

ABSTRACT: TECHNIQUE OF FORECASTING COAL GAS ENRICHING SECTION

Shuangan Yang, Shunian Ning, Huixing Zhang

The Society for Organic Petrology (TSOP)

... wave equation in two-phase media based on Biot theory was studied in the article. The solve of equation shows that there are two kinds of primary...

A finite-element method to compute the seismic response in non-isothermal poroelastic media

Juan E. Santos, Gabriela B. Savioli, Jos M. Carcione, Jing Ba

International Meeting for Applied Geoscience and Energy (IMAGE)

... based on the non-isothermal wave equation, which includes the temperature field other than those of stress and deformation. The model, which combines...

On the connection between WRI and FWI: Analysis of the nonlinear term in the Hessian matrix

Ali Gholami, Hossein S. Aghamiry, Stephane Operto

International Meeting for Applied Geoscience and Energy (IMAGE)

... reconstruction inversion (WRI) (van Leeuwen and Herrmann, 2013) increases the robustness by relaxing the waveequation constraint. This wave-equation...