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

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Fluid and Petrophysical Prediction in the Elastic Impedance Domain Using Neural Network Technique; #41066 (2012)

M. Hermana, M. Najmi, Z.Z.T. Harith, and C.W. Sum

Search and Discovery.com

... subtends to the negative B axis. The equivalent expression for equation (3) as EEI is: (5) where α = P-wave velocity, ρ = density, β = S-wave velocity, p...

Resolution limits of fluid overpressures from mineralogy, porosity, and sonic velocity variations in North Sea mudrocks

Christian Hermanrud, and Oddgeir Undertun

AAPG Bulletin

.... The yellow line is the average velocity versus depth trend from the data of Figure 5 (computed from equation 2). This trend thus shows the average...

Dip and Azimuth Determination in 3D CRS-Stack

A. Hendriyana, M. Jaya, R. Sule, A.D. Guntara

Indonesian Petroleum Association

... energy while random noise is cancelled in theory. In the surface, those traces not only belong to a one Common-Depth-Point (CDP) but involve several CDPs...

Incorporation of Geology, Wells, and Rock Physics into Anisotropy Estimation for Seismic Depth Imaging Enables True Earth ModelŽ, #40828 (2011)

Huyen Bui, Peck-Hwa David Ng, Jenny Zhou, Chih-Wen Kue, Mart Smith

Search and Discovery.com

.... Likely, it was thought that, if the depth-migrated velocity was wrong, seismic anisotropic functions (Thomsen’s delta and epsilon) were also wrong...

Abstract: Kirchhoff Prestack Time Migration with Angle Domain Common Image Gathers; #90174 (2014)

Jianhua Pan, Robert Tilson, Gerry Schlosser, and Elvis Floreani

Search and Discovery.com

... velocity migration procedure, and the image at any subsurface location is related only to the RMS velocity value at this location, the ray is actually...

The calculation of first-arrival P-wave traveltime for attenuating TTI media

Mengxiu Wang, Jingyi Chen, Zhengcong Zhao, Kaiyuan Ji, Shaoying Chang

International Meeting for Applied Geoscience and Energy (IMAGE)

... part of complex-valued eikonal equation has the same form to the real eikonal equation in non-attenuating media. From the ray theory, the real part...

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)

... reservoir to obtain the rock mineralogy and pore structure by X-ray diffraction and casting thin sections. Then, ultrasonic and resistivity experiments...

Abstract: Exact, Linear and Nonlinear AVO in Terms of Poroelastic Parameters; #90187 (2014)

Steven Kim and Kris Innanen

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...Abstract: Exact, Linear and Nonlinear AVO in Terms of Poroelastic Parameters; #90187 (2014) Steven Kim and Kris Innanen AAPG Search and Discovery...

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

Sunjay Sunjay,

Search and Discovery.com

... constitutes a key first step that facilitates the estimation of a velocity model for depth imaging. For these reasons, improving the quality of time...

Theory of Nuclear Transmission Densitometry Applied to Sedimentology and Geotechnology

Peter V. Meyers, Wesley J. Van Sciver, Adrian F. Richards

Journal of Sedimentary Research (SEPM)

.... The purpose of this paper is to demonstrate that the above corrective methods can be simplified, a linear equation relating the logarithm of the count...

Pore Pressure and Elastic Moduli Estimation Considerations for a Simplified Geomechanical Model for Unconventional Plays. A case study in the Vaca Muerta Formation

Sergio Cuervo, Ezequiel Lombardo

Unconventional Resources Technology Conference (URTEC)

... and V0 is the velocity at zero effective stress, in the Bower’s initial equation assumed as 5000 ft/s. A, B are fitting constants. For the velocity...

Comprehensive pressure core analysis for hydrate-bearing sediments from Gulf of Mexico Green Canyon Block 955, including assessments of geomechanical viscous behavior and nuclear magnetic resonance permeability

Jun Yoneda, Yusuke Jin, Michihiro Muraoka, Motoi Oshima, Kiyofumi Suzuki, William F. Waite, and Peter B. Flemings

AAPG Bulletin

... velocity, density, and gamma ray acquired by LWD indicated numerous concentrated gas hydrate–bearing layers existed in a reservoir between 414 and 450 m...

Dissolution and Precipitation Kinetics of Kaolinite: Initial Results at 80°C with Application to Porosity Evolution in a Sandstone

K. L. Nagy, C. I. Steefel, A. E. Blum, A. C. Lasaga

AAPG Special Volumes

... (equation 6, if n ^ne 1) and linear (equation 7) rate laws near equilibrium. Equation 6 has been the form used most commonly for representing...

Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra

Iswani Waryono, Wahyu Triyoso

Indonesian Petroleum Association

.... It is like transforming the CMP data from amplitude to velocity gather. The method is data driven, based on the normal move out equation and by measuring...

Wave-Formed Sedimentary Structures„A Conceptual Model

H. Edward Clifton

Special Publications of SEPM

... and relates directly to wave and water depth combinations Moreover the velocity parameters probably provide an adequate approx imation for a conceptual model...

Machine Learning Application for Shear Velocity Prediction in Ahnet Basin, Algeria; #42584 (2023)

Abdeldjalil Latrach, Nassim Bouabdallah, and Aimene Aihar

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...Machine Learning Application for Shear Velocity Prediction in Ahnet Basin, Algeria; #42584 (2023) Abdeldjalil Latrach, Nassim Bouabdallah, and Aimene...

Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey

Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove

AAPG Bulletin

... for building the ray-tracing impedance model (Figure 7).Figure 7. Velocity model in depth used for ray-tracing methods. This section follows the projection...

Abstract: Anisotropic Moment Tensor Inversion and Visualization Applied to a Dual Well Monitoring Survey; #90224 (2015)

Scott Leaney, Xin Yu, Chris Chapman, Les Bennett, Shawn Maxwell, Jim Rutledge, and John Duhault

Search and Discovery.com

...re used for VTI model calibration. One such event is shown in Figure 2 along with the “VMI” (Velocity Model Inversion) interface. Notice the depth- and hence...

Abstract: Subsalt Seismic Modeling and Illumination Analysis in Red Sea Transition Zone; #90254 (2016)

Ewenet Gashawbeza, Hongwei Liu, Saleh AL-Saleh

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... velocity field, acquisition geometry, and a high fidelity algorithm. In this study, two modeling techniques were used: (1) ray-based that is fast...

Unlocking the Potential of Conventional Narrow Azimuth Data by Full-Waveform Inversion: a Deep Carbonate Imaging Case Study, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Bahrul Yusrie, Natalia Anggriani

Indonesian Petroleum Association

... sensible velocity updates down to 3.5 kilometers. These updates to the model improve the seismic image and, importantly, reduce the depth...

3D Radon transformation with axis dependent curvature

Faruq Akbar, Warren Ho, Sebastian Holland, Rodrigo Fuck

International Meeting for Applied Geoscience and Energy (IMAGE)

... and β=2 represents linear in the X direction and parabolic in the Y direction. Note that the parabolic ray parameter is designated by q but we use p...

Abstract: Multiple and Noise Attenuation with Tau-P Seismic Data Processing

Leong Lap Sau, Ng Tong San

Geological Society of Malaysia (GSM)

... of horizontal phase velocity) or ray parameter (p) and the intercept time (T). The projection slice theorem provides a method for computing the T-p...

Abstract: Pitfalls in Velocity Analysis Using Common-Offset Time Migration, by Y. C. Kim and J. R. Krebs; #90981 (1994).

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Sonic Velocity in Carbonates„A Combined Product of Depositional Lithology and Diagenetic Alterations

Flavio S. Anselmetti, Gregor P. Eberli

Special Publications of SEPM

... of more that affect porosity and core borings in sediments not afunction of burial depth Velocity 1 the depositional lithology...