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The AAPG/Datapages Combined Publications Database

Showing 20,854 Results. Searched 200,673 documents.

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A Methodology for Selecting Optimal Pipe Rocking Regimes during Slide Drilling

Ian Rostagno, Michael Yi, Pradeepkumar Ashok, Eric van Oort, Ben Potash, Chris Mullin

Unconventional Resources Technology Conference (URTEC)

... and the wellbore. Drillstring dynamics was then simulated using a torsional damped wave equation applying finite difference approximations. Finally...

2019

An immersed absorbing boundary condition for scalar wavefield modeling under topography

KeJi Chen, Hanming Chen, Hui Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... at the artificial truncation boundary in wave equation numerical simulation to mimic an unbounded computational domain. When seismic waves enter ABC, they behave...

2022

ABSTRACT: Quantifying CO2 Saturation from Time-Lapse Well Logging in an Onshore Saline Aquifer, Nagaoka, Japan; #90061 (2006)

Ziqiu Xue, Jiro Watanabe, and Daiji Tanase

Search and Discovery.com

... results strongly suggested the capability for quantifying CO2 concentration from seismic wave data with Gassmann’s equation. AAPG Search and Discovery...

2006

Abstract: Application of Viscoacoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data; #90246 (2016)

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... to fully resolve the compartmentalized nature of the gas bodies, a wave equation-based method to derive the Earth model is required. Many current...

2016

Abstract: Reflection Full Traveltime Inversion in the Image Domain; #90319 (2018)

Yue Ma, Tong W. Fei, Yan Wu, Yi Luo

Search and Discovery.com

... Full traveltime inversion (FTI) is a newly developed wave-equation-based traveltime inversion methodology to automatically invert a kinematically...

2018

Best Practices for Sub

Search and Discovery.com

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Full-waveform inversion using velocity-encoded physics-informed neural networks

Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... this this work. INTRODUCTION The solution to the wave equation has been at the heart of various geophysical breakthroughs in applications ranging from seismic...

2024

Abstracts: Nodal Galerkin Methods for Numerical Modelling of Linear Elasticity with Absorbing Boundary Conditions; #90173 (2015)

Matt McDonald, Michael Lamoureux, and Gary Margrave

Search and Discovery.com

... in the spatial domain and converges exponentially. It is appropriate for any formulation of the elastic wave equation in any number of spatial dimensions...

2015

Extracting surface wave dispersion spectra directly from the high-speed train induced vibration

Shengpei Xia, Xinyue Pan, Xiaokai Wang, Wenchao Chen, Jingrui Luo, Haixia Zhao, Wenjing Yan

International Meeting for Applied Geoscience and Energy (IMAGE)

... based on the twodimensional elastic wave equation to generate the HSTinduced seismic data. Figure 2 illustrates the excitation process of the bridge...

2024

Research and application of shallow surface wave prediction attenuation in dual complex mountainous exploration areas

Xinyue Song, Zaijin Zhang, Yi Bao, Cheng Wang, Zhonghua Zhao, Yangyang Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the boundary condition equation into the form of transfer matrix multiplication, the problem of solving the elastic wave equation is simplified into a zero...

2024

Efficient Q-RTM in anisotropic TTI media with phase and amplitude compensation

Yongzhong Wang, Faqi Liu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

...-value. With the above Eq. (10), Eq. (8a) can be reduced to the following Equation: 𝜕2 𝑝 𝑙=1 +𝑣 2 𝐻1 (𝑝 − 𝛼𝑞) 𝑠𝑧 To derive a system of wave...

2024

An Empirical Study of the Generalized Fluid Method for Hydrocarbon Discrimination

Search and Discovery.com

.... For the first category, Aki and Richards equation emphasized the contribution of variations in the P- and S-wave velocities and density. A reformulation...

2013

Abstract: Integration of Well Logs and Seismic Data for Prediction of Elastic Properties in a Heavy Oil Sand Reservoir: Manitou Lake, Saskatchewan; #90171 (2013)

Maria F. Quijada and Robert R. Stewart

Search and Discovery.com

... CSPG/CSEG/CWLS GeoConvention 2009, Calgary, Alberta, Canada, May 4-8, 2009 Log response equation Gardner Density (g/cm3) P‐wave sonic      (us/m...

2013

Semi-Analytical Approach of Optimum Vibration Frequency Determination That Gives Maximum Improvement on Reservoir Rock Porosity

Mursalim Mardin, Tutuka Ariadji

Indonesian Petroleum Association

... and formation rock. The oscillation wave from the vibration source follows the simple sinusoidal wave equation. Thus, we start to empirically seek a dominant...

2005

Wave-Formed Sedimentary Structures„A Conceptual Model

H. Edward Clifton

Special Publications of SEPM

... where Lois deep water wave length Because the Stokes second order equation is not valid for all ranges of dUm this approach is somewhat restricted...

1987

Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)

Sunjay Sunjay,

Search and Discovery.com

...- involved in equation (1) are curvature radii of the fictitious wave fronts ΣS and ΣG. It is clear from Figure 3 that, for a given central ray, the radii R...

2011

Improved subsalt imaging in the Eastern Mediterranean Sea with converted wave attenuation

Monica Hartmann, Jana Caskey, Benjamin Cole, James McLeman, Tom Rayment, Ares Ouzounis

International Meeting for Applied Geoscience and Energy (IMAGE)

... subtracted in the image domain (Hegazy et al., 2018). Dual-leg 3D acoustic wave-equation modelling can be used to predict the converted wave noise...

2024

On the absorbing boundaries to replicate semi-infinite half-space in numerical seismic analyses using the finite element method

Tyler R. Hebert, James M. Bryce, Arka Prabha Chattopadhyay

International Meeting for Applied Geoscience and Energy (IMAGE)

... for all frequencies of the propagating wave [1]. Komatitsch and Tromp [1] derived a second order PML equation for seismic wave analysis for the finite...

2022

Abstracts: A Decomposition of RP into Contributions from single-parameter Reflectivities; #90173 (2015)

Kristopher A. Innanen

Search and Discovery.com

..., the AR approximation         , (1)              in which VP, VS and ρ represent the mean values of P-wave velocity...

2015

Pseudo S-wave splitting effects associated with poor receiver coupling on ocean bottom multi component data

Moacyr de Souza Bezerra, James Simmons, James Gaiser

International Meeting for Applied Geoscience and Energy (IMAGE)

...Pseudo S-wave splitting effects associated with poor receiver coupling on ocean bottom multi component data Moacyr de Souza Bezerra, James Simmons...

2022

Optimized downward continuation for the one-way wave equation in TTI media

Cosmin Macesanu, Faqi Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

...Optimized downward continuation for the one-way wave equation in TTI media Cosmin Macesanu, Faqi Liu Optimized downward continuation for the one-way...

2022

Elastic impedance parameterization and inversion for fracture quasi-weaknesses and quasi-Thomsen parameters in fractured reservoirs with monoclinic symmetry

Wei Xiang, Xingyao Yin, Kun Li, Zhengqian Ma

International Meeting for Applied Geoscience and Energy (IMAGE)

... of weak anisotropy, the PP wave reflection coefficient equation of monoclinic medium, formed by a single group of vertical fractures distributed...

2023

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