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The AAPG/Datapages Combined Publications Database

Showing 20,858 Results. Searched 200,616 documents.

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Sonic Log Analysis from Isotropic and Anisotropic Media In Carbonate Reservoir, the Case Study at Stella Alpina Field

Wahyu Tri Sutrisno, Septian Prahastudhi, Ari Teguh Sugiarto, Ayi Syaeful Bahri, Dwa Desa Warnana, Yulia Putri Wulandari

Indonesian Petroleum Association

... Richards equation has better results in complex wave propagation. For future work, it is planned to use VSP and multi-well analysis to analyze...

2014

Extended Abstract: Horizontal Heterogeneity Measurement of Strength and Elastic Properties for Conventional and Unconventional Rocks

Ji Soo Lee

GCAGS Transactions

... using the empirical calibration equation to convert to the corresponding UCS values (Lee et al., 2014). The radial acoustic scanning measures primary...

2020

Abstract: Influence of Cooling and Heating Rate on CO2 Condensation and Evaporation Observed in a Saturated Synthetic Rock Sample; #90187 (2014)

R. Kofman, A. Rabbani, G. Njiekak, and D. R. Schmitt

Search and Discovery.com

... in the interpretation of field seismic observations, simultaneous ultrasonic measurements of wave velocities are being conducted on a variety of porous materials...

2014

Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)

Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang

Search and Discovery.com

... integral equation of one-way wave field continuation from the scalar wave equation and gave the explicit expression of angular frequency domain...

2023

Bridging the gap: Deep learning on seismic field data with synthetic training for building Gulf of Mexico velocity models

Stuart Farris, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... body. The CNNs were trained on three datasets: field data, data generated with the acoustic constant-density isotropic wave equation, and data...

2023

Data-embedded physics-informed neural network for electromagnetic wave propagation simulation: Potentials and challenges

Yawei Su, Wenyi Hu, Jiefu Chen, Aria Abubakar

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The governing equation is the wave equation for the electric field in the strike direction, denoted as y direction, in the frequency domain, ଶ (1) ∇ଶ ‫ܧ‬௬...

2024

PINNslope: Physics-informed neural network slope prediction and interpolation with positional encoding

Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... slope attribute. The implementation comprises two fully-connected neural networks trained using the local plane wave differential equation as well...

2023

Deep learning approach to inverting flexural wave dispersion

Hengjian Zhang, Zhifen Sun, Xianzhi Li, Xiaofang Sun, Chu Wang, Ya Jin, Xiaofei Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... wave that propagates along the wellbore wall. The dispersion characteristics of these waves are determined by the dispersion equation(Tang and Cheng...

2024

Supercritical Flow in Density Currents

Bryce M. Hand

Journal of Sedimentary Research (SEPM)

.../wavelength relationship defined by Kennedy can be extended to density currents through use of the internal wave equation. Unfortunately, however, observation...

1974

Estimating elastic wave velocities, attenuation factors, and their frequency dependency by inverting ultrasonic waveforms

Michel M. Nzikou, Alexey Yurikov, Maxim Lebedev, Boris Gurevich

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Then the same approach is repeated for the bulk modulus K (where in the equation for the complex P-wave modulus K + (4/3)G, the complex shear...

2022

Abstract: A Stable Criterion for Shear-Wave-Splitting Analysis; #90174 (2014)

Xinxiang Li and Jeff P. Grossman

Search and Discovery.com

...Abstract: A Stable Criterion for Shear-Wave-Splitting Analysis; #90174 (2014) Xinxiang Li and Jeff P. Grossman AAPG Datapages/Search and Discovery...

2014

Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)

Roohollah Askari and Robert J. Ferguson

Search and Discovery.com

...Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014) Roohollah Askari and Robert J...

2014

Numerical experiments to characterize P-wave attenuation in partially saturated non-isothermal porous media

Naddia D. Arenas, Gabriela B. Savioli, Juan E. Santos, José M. Carcione

International Meeting for Applied Geoscience and Energy (IMAGE)

...Numerical experiments to characterize P-wave attenuation in partially saturated non-isothermal porous media Naddia D. Arenas, Gabriela B. Savioli...

2023

Abstract: Kirchhoff Imaging in a Matrix Form. Part I: Modelling; #90174 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

...) equation to calculate the modelling time for each sample in each trace. Proper weighting functions, filtering, interpolation, dip, and aliasing controls...

2014

Accelerating innovation with software abstractions for scalable computational geophysics

Mathias Louboutin, Philipp Witte, Ali Siahkoohi, Gabrio Rizzuti, Ziyi Yin, Rafael Orozco, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

..., inverse problems based on the wave-equation (e.g., medical ultrasound). We developed a software environment aimed at scalable research and development...

2022

Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)

Paul F. Anderson

Search and Discovery.com

... to an equation that relates the reflectivity at a given angle (offset) to P-wave and S-wave reflectivities. The gathers, as delivered by the processor...

2013

Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)

Paul F. Anderson

Search and Discovery.com

... to an equation that relates the reflectivity at a given angle (offset) to P-wave and S-wave reflectivities. The gathers, as delivered by the processor...

2013

Modeling-based amplitude recovery (MBAR)

Yonghe Sun, Zhemin Tan, Jeff Nealon, James Davenport, Mark Fan, Yuli Zhang, Brian Church

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Freeman and Co. Askim, O. J., U. Albertin, K. Matson, and M. Gherasim, 2010, Wave-equation-based illumination determination for amplitude versus angle...

2022

Direct S-wave seismic data interpretation for channel sand reservoir at Sanhu area, West China

Rui Zhang, Zhiwen Deng, Yan Wang, Xiaoyu Xi, Xiusong Wang, Jie Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The rotation matrix is shown in equation (2). In an isotropic media, SrRr is the SV wave mode and StRt is the SH wave mode. No energy appears in the SrRt...

2023

Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014)

Waheduzzaman Talukder and Ralph Phillip Bording

Search and Discovery.com

...Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014) Waheduzzaman...

2014

Transformation of point-to-line source seismogram in a 2D geological model

Moosoo Won, Bing Zhou, Mohamed Jamal Zemerly, Mohammad Al-Khaleel, Mohamed Kamel Riahi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and 𝑉 𝑃 denotes the acoustic velocity. Equation (1) indicates that the amplitude of the 3D acoustic wave inversely diminishes with the offset (𝑟 −1 ). The 2D...

2024

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

...P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta Faranak Mahmoudian P-Wave Impedance...

Unknown

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

...P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta Faranak Mahmoudian P-Wave Impedance...

Unknown

Abstract: Bin-Share Stacking for 3D Converted Wave Processing; #90174 (2014)

Alex A. Falkovskiy, Robert Tilson, Gerry Schlosser, and Elvis Floreani

Search and Discovery.com

... toward the receiver, vary with depth and depend on the Vp/Vs ratio, where Vp is P-wave velocity and Vs is S-wave velocity. A quartic equation for offset...

2014

Sonic Saturation Inversion and AVO Modeling in the Tunu Gas Field

Patrick Fouchard, Scott Leaney, Sugimin Harsono

Indonesian Petroleum Association

... and matrix, respectively. Equation 3 forms the basis for the evaluation of φ in what follows. Dividing equations 1 and 2 yields: which exposes...

1996

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