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The AAPG/Datapages Combined Publications Database

Showing 20,882 Results. Searched 201,044 documents.

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Dielectric Log Calibration Using a Unique Core-based ElectroMagnetic Response (EMR) Workflow: A Case Study

Ray Hanna, Carl Merkt

Unconventional Resources Technology Conference (URTEC)

... are rock physical properties, that alter the propagation of an electromagnetic wave through the formation, and in which this alteration varies...

2023

Permeability Multiplier Prediction Utilizing Wide Azimuth 3D OBC Seismic Data; #41349 (2014)

T. Matarid

Search and Discovery.com

... slow interval velocity and the anisotropy azimuth deviation from the known present day stress. Therefore, the following equation has been written...

2014

Integrating Geological Attributes with a Multiple Linear Regression of Geophysical Well Logs to Estimate the Permeability of Carbonate Reservoirs in Campos Basin, Southeastern Brazil; #10930 (2017)

Paula Almeida, Abel Carrasquilla

Search and Discovery.com

... of rocks Sonic Time an elastic wave takes to travel 1 foot of well wall Porosity / velocity / elastic constants of rocks Neutronic Quantity...

2017

Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution

Peng Yong, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... between observed and calculated data is a difficult and long-standing task in exploration seismology. In the early work of wave-equation traveltime...

2022

The Integration of Key Petrophysical and Geomechanical Play Drivers into Geologic Attribute Mapping: Getting Ahead of the Stampede; #40948 (2012)

Larry Brooks and Randy Montalvo

Search and Discovery.com

... * Langmuir's Equation: θ = K*C/(1+K*C) θ=fractional coverage of the surface C= gas pressure concentration K= Langmuir adsorption constant *(Seungman & Dongsu...

2012

Large-scale Marchenko imaging with distance-aware matrix reordering, tile low-rank compression, and mixed-precision computations

Matteo Ravasi, Yuxi Hong, Hatem Ltaief, David Keyes, David Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

...)), as well as in more recently developed wave-equation based methods such as Estimation of Primaries by Sparse Inversion (EPSI – van Groenestijn...

2022

Abstract: A Comparison of 5D Reconstruction Methods; #90187 (2014)

A. Stanton, N. Kreimer, D. Bonar, M. Naghizadeh, and M. D. Sacchi

Search and Discovery.com

... strategies to tackle the reconstruction problem. Algorithms fall under the following two categories: those based on wave equation principles (for example Ronen...

2014

Study of Seismic Anomalies in the Frequency Spectrum as a Hydrocarbon Reservoir Characterizer; #42596 (2025)

Argenis Pelayo, Ivan Omaña

Search and Discovery.com

... and the examination of field data. Fluid substitution is performed using Gassmann’s Equation (1951), enabling the estimation of Vs, Vp, and density for reservoirs...

2025

Abstract: A Tectonic Hypothesis to Explain Earth’s Crustal Movement, and May Control A Basin’s Configuration and Depositional Sequence

Eric F. Engbrecht

Abilene Geological Society

... oscillation, and (4) availability of above conditions to develop adequate amplitudes. The carrier wave will respond to each physical environment...

1983

Abstract: Detection of Naturally Occurring Micro-Fractures

Jamal Ass'Ad

Houston Geological Society Bulletin

... medium) on seismic shear-wave propagation are characterized through scale-model seismic experiments utilizing disc-shaped inclusions in an isotropic...

1992

-- no title --

user

Search and Discovery.com

...user Polarization Filter by Eigenimages and Adaptive Subtraction to Attenuate Surface-Wave Noise Stephen Chiu, Norman Whitmore, and Michael Gurch...

Unknown

-- no title --

user

Search and Discovery.com

...user P-Wave Enhancement in Rough Terrain using Multicomponent Seismic Data: Catatumbo, Colombia Saul E. Guevara1, Gary F. Margrave2, and Robert R...

Unknown

-- no title --

user

Search and Discovery.com

...user Polarization Filter by Eigenimages and Adaptive Subtraction to Attenuate Surface-Wave Noise Stephen Chiu, Norman Whitmore, and Michael Gurch...

Unknown

-- no title --

user

Search and Discovery.com

...user P-Wave Enhancement in Rough Terrain using Multicomponent Seismic Data: Catatumbo, Colombia Saul E. Guevara1, Gary F. Margrave2, and Robert R...

Unknown

Abstract: Analytic Formulae for Wave Normal of P-Waves in TI and Orthorhombic Media; #90255 (2017)

Qi Hao, Alexey Stovas

Search and Discovery.com

...Abstract: Analytic Formulae for Wave Normal of P-Waves in TI and Orthorhombic Media; #90255 (2017) Qi Hao, Alexey Stovas AAPG Datapages/Search...

2017

Large-Scale Flood Deposits Associated with the Formation of Coarse-Grained, Braided Terrace Sequences

Judith K. Maizels

Special Publications of SEPM

... flow depth using the Du Boys equation, and resistance to flow and flow 136 JUDITH K . MAIZELS velocity using Manning- and Darcy-Weisbach-type...

1987

Elastic FWI for large impedance contrasts

Zedong Wu, Zhiyuan Wei, Zhigang Zhang, Jiawei Mei, Rongxin Huang, Ping Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... − 𝑐44 − 𝑐44 . We next define the derivative matrix D as 𝜕1 0 0 0 𝜕3 𝜕2 𝜕3 0 𝜕1 ). 𝐷 = ( 0 𝜕2 0 0 0 𝜕3 𝜕2 𝜕1 0 The elastic wave equation...

2022

A case study of TORT migration imaging of strike-slip faults in Mahu area, Junggar Basin

Hanqing Huang, Daoshan Li, Wei Chai, Hongdan Gu, Yongchang Lv, Yong Wang, Lijuan Huang, WenShan Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Petroleum Geologists REFERENCES Alkhalifah, T., 2003, An acoustic wave equation for orthorhombic anisotropy: Geophysics, 68, 1169–1172, doi: https...

2023

Nightmare Multiples — A Step Towards a Solution

George Yao, Bob Estill, Daniel Heinze, Hans Tieman, Yusri, Jim Waugaman

Indonesian Petroleum Association

... in the multiple wavefield. Numerous multiple-suppression techniques such as wave equation, high resolution radon, fk, and pattern matching have been...

2003

Vertical and Lateral Seismic Resolution and Attenuation: Part 7. Geophysical Methods

R. E. Sheriff

AAPG Special Volumes

.... This yields an equation relating the geophone group interval s to the frequency f and the maximum reflection dip d (in milliseconds per unit of distance...

1992

Does Local Resuspension Maintain the Benthic Nepheloid Layer in Southeastern Lake Michigan?

Nathan Hawley , Barry M. Lesht

Journal of Sedimentary Research (SEPM)

.... 190-200. TRANSPORT CANADA, 1991, Wind and wave climate atlas II: Ottawa, Ontario, The Great Lakes Transportation Development Centre, Policy...

1995

Abstract: Near Surface Anomalies and Solutions; #90211 (2015)

Todd Mojesky, David LeMeur, and Ali Karagul

Search and Discovery.com

... Industry Heading? Calgary, AB, Canada, May 15-18, 2006 2) GeoPACS Long wave and large magnitude statics require a new algorithm. NMO errors...

2015

CGG 3D Surface-Related Multiple Modelling: A Unique Approach, #41590 (2015).

David Le Meur, Antonio Pica, Terje Weisser

Search and Discovery.com

... and multiples through the target volume is modelled using the one-way wave equation. The method therefore handles well the problems of cable feathering...

2015

Integrating Borehole Imaging and Full Waveform Dipole Sonic Data to Estimate Fracture Porosity in Tight Formations: A Workflow for Accurate Characterization of Natural Fractures; #42582 (2023)

Doina Irofti, Ghoulem Ifrene, Fethi Ali Cheddad, Safouane Djemai

Search and Discovery.com

... the Paleozoic sedimentary layer are mostly compact. Figure 4. Flexural wave characteristics of different types of anisotropic strata. The Redline...

2023

Estimation of shear wave velocity based on adaptive step size algorithm

Yipeng Gu, Jiajia Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Estimation of shear wave velocity based on adaptive step size algorithm Yipeng Gu, Jiajia Zhang Estimation of shear wave velocity based on adaptive...

2023

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