Amplitude inversion of OBS direct arrivals for seabed elastic properties

James Gaiser, Moacyr de Souza Bazerra, James Simmons

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Equations (1) through (3) are expressed in slowness coordinates where (' , ($ and (" are vertical slownesses of the pressure wave in water and the P...

Finite Difference Modeling: Part I: Become Expert in Five Minutes

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... approximation for the wave equation, and the famous Courant–Friedrichs–Lewy (CFL) condition – a necessary condition for convergence while solving partial...

Seismic Modeling and Imaging - Making Waves, by Phillip Bording and Larry Lines, #40066

Search and Discovery.com

Shape and Roundness of Lake Erie Beach Sands

F. J. Pettijohn, A. C. Lundahl

Journal of Sedimentary Research (SEPM)

... abrasion cannot account for the observed trends. Water currents, sorting the sands of the beach in the down-current direction, carry the less spherical...

Implementation aspects of elastic FWI and its application to sparse OBN surveys

Cosmin Macesanu, Faqi Liu, Yi Huang, Hao Hu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/segam2020-3427610.1. McLeman, J., T. Burgess, M. Sinha, G. Hampson, and T. Thompson, 2021, Reflection FWI with an augmented wave equation and quasi...

3D seismic survey design by maximizing the spectral gap

Yijun Zhang, Ziyi Yin, Oscar López, Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... that maximizing the spectral gap of the subsampling mask leads to better wavefield reconstruction results. We enrich the current study by proposing a simulation...

ABSTRACT: Subsalt Imaging: beyond depth migration and model building; #90051 (2006)

Biondo Biondi

Search and Discovery.com

... migration, and in particular of wave-equation migration, had a positive impact on many exploration projects. However, simple migration has difficulties...

Abstract: Improved Subsurface Imaging through Reverse Time Migration: A Synthetic Case Study; #90255 (2017)

Pradeep Mahadasu

Search and Discovery.com

.... It is generally referred to as one-way migration solution because of mathematical simplifications in the implementation of the wave equation. In complex...

ADMM-based full-waveform inversion of ground-penetrating radar data

A. Jalali, H. S. Aghamiry, A. Gholami

International Meeting for Applied Geoscience and Energy (IMAGE)

...’s equations are used instead of the acoustic wave equation (?). So leaving behind these conventional data processing, GPR can benefit from seismic full...

Abstract: The Effect of Bedding Plane Orientation Towards P-Wave Velocity of Berea Sandstone at Different Water Saturation Degree (Paper P25)

Hammad Hazim Bin Mohd Azhar, Zuhar Zahir Tuan Harith

Geological Society of Malaysia (GSM)

... that the measured data did not fit the equation. The P wave velocity data measured were way greater than the estimated value which concludes...

Abstracts: Using a 1D FX Predictive Filter for 3D Seismic Data Random Noise Attenuation; #90173 (2015)

Mike Galbraith, Zhengsheng Yao, and Randy Kolesar

Search and Discovery.com

... 3c and Figure 1a. Both FX and FXY come from a linear invariant dynamic model and can be formulated as the same convolution equation except...

Cross-Shore Distribution of Sediment Texture Under Breaking Waves Along Low-Wave-Energy Coasts

Ping Wang , Richard A. Davis, Jr. , Nicholas C. Kraus

Journal of Sedimentary Research (SEPM)

...Cross-Shore Distribution of Sediment Texture Under Breaking Waves Along Low-Wave-Energy Coasts Ping Wang , Richard A. Davis, Jr. , Nicholas C. Kraus...

Theoretical and experimental study of acoustic and electrical properties in tight-oil rocks: A case study

Mengqiang Pang, Jing Ba

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Yanchang Formation in the Q Area, Ordos Basin, China. Then, X-ray diffraction (XRD), casting thin sections (CTS), ultrasonic wave and electrical...

Mathematical modeling of microcrack growth in source rock during kerogen thermal maturation

Yunfei Yang, and Gary Mavko

AAPG Bulletin

...., and W. Proffer, 1984, Engineering formulas for fractures emanating from cylindrical and spherical holes: Journal of Applied Mechanics, v. 51, no. 4, p...

ABSTRACT: Wave Equation Prestack Depth Migration for Deep Gulf Coast Prospecting

Morgan Brown, Joe Higginbotham, Cosmin Macesanu

GCAGS Transactions

...ABSTRACT: Wave Equation Prestack Depth Migration for Deep Gulf Coast Prospecting Morgan Brown, Joe Higginbotham, Cosmin Macesanu Wave Equation...

The Movement of Gravel by the Alga Fucus Vesiculosus (L.) on an Arctic Intertidal Flat

Robert Gilbert

Journal of Sedimentary Research (SEPM)

..., and the plant is increasingly affected by wave and current action. Windrows of Fucus debris at the high tide line were examined in a 1-km section of beach...

High Performance Seismic Data Migration for High Resolution Interpretation

C. N. Chernoff

Indonesian Petroleum Association

...., 1980, Wave equation migration with the accurate space derivative method: Geophysical Prospecting, v. 28, p. 60-70. Judson, D. R., Lin, J., Schultz...

3D land full-waveform inversion in the Permian Basin: A case study at Quail Ridge East

Benjamin Consolvo

International Meeting for Applied Geoscience and Energy (IMAGE)

... steps applied. FWI Methods and Model Building In the forward modeling stage, FWI uses the wave equation—an equation that governs the physics of sound...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

...) applications using a circular shot OBN survey. The synthetic seismic data was generated solving the acoustic wave equation by the finite difference...

Rock-Fluid Interaction Impact on Geomechanical and Acoustic Properties in Shale Reservoirs: Anisotropic Grain Contact Adhesion Model

Binh T. Bui, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... equation. The tortuosity, τ, is used to account for the tortuous form of the pore. Comiti and Renaud (1989) determined the tortuosity of spherical...

Flexural and Full Wave Logging Using the Low-Frequency Dipole Sonic

David E. Sharbak

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... The transmitter emits a cylindrical compressional wave that travels away from its source. The compressional wave strikes the borehole wall where both...

Pulsed Power Plasma Stimulation Technique … Experimental Study on Single Pulse Test for Fractures Initiation

Yue Xiao, Waylon House, Ebru Unal, Mohamed Soliman

Unconventional Resources Technology Conference (URTEC)

... direction. In both cylindrical and spherical coordinate systems, the created B field in homogeneous media would be in the angular (ϕ) direction...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

..., A new class of propagation models based on a factorization of the Helmholtz equation: Geophys. J. Roy. Astr. Soc., 80, 439-461. Gazdag, J., 1978, Wave...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

..., A new class of propagation models based on a factorization of the Helmholtz equation: Geophys. J. Roy. Astr. Soc., 80, 439-461. Gazdag, J., 1978, Wave...

Poro-acoustoelasticity FD simulation of elastic wave propagation in prestressed porous media

Haidi Yang, Li-yun Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

...Poro-acoustoelasticity FD simulation of elastic wave propagation in prestressed porous media Haidi Yang, Li-yun Fu Poro-acoustoelasticity FD...