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The AAPG/Datapages Combined Publications Database

Showing 2,053 Results. Searched 200,619 documents.

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Petrophysics of Oil Reservoirs in the Eromanga Basin, South Australia

D. I. Gravestock, E. M. Alexander

Petroleum Exploration Society of Australia (PESA)

... that these effects were greater at elevated temperature. Two schematic conductivity curves are shown in Figure 3; each has an initially nonlinear portion...

1989

Machine learning-based residual moveout picking

Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja

International Meeting for Applied Geoscience and Energy (IMAGE)

... Adler, F., R. Baina, M. A. Soudani, P. Cardon, and J.-B. Richard, 2008, Nonlinear 3D tomographic least-squares inversion of residual moveout in kirchhoff...

2022

ERT and crosswell EM imaging of CO2: Examples from a shallow injection experiment at the Carbon Management Canada CaMI FRS in Southeast Alberta, Canada

David Alumbaugh, Michael Wilt, Edward Nichols, Evan Um, Marie Macquet, Donald C. Lawton, Dennis Rippe, Kerry Key, David Myer

International Meeting for Applied Geoscience and Energy (IMAGE)

....: Liu, J., A. Abubakar, T. Habashy, D. Alumbaugh, E. Nichols, and G. Gao, 2008, Nonlinear inversion approaches for cross-well electromagnetic data...

2022

3D density imaging of cosmic-ray muography with adjustable angular resolutions

Chenyan Wu, Dikun Yang, Zhongchang Chen, Ke Wang, Tao Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... is a nonlinear process, whereas the calculation of opacity from a density model is linear. Therefore, the observed muon flux values in the field are often...

2022

High-resolution seismic monitoring insights on stress and fault orientations in the Delaware Basin

Adam M. Baig, Aaron Booterbaugh, Sepideh Karimi

International Meeting for Applied Geoscience and Energy (IMAGE)

... in a nonlinear optimization problem involving a three-dimensional velocity model. These locations are refined by consistent repicking implemented...

2022

Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia

Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/tle33030266.1. Bachrach, R., 2018, Nonlinear Single loop litho-petro-elastic prestack inversion using data assimilation techniques: 80th Annual...

2022

Q-LSRTM using viscoacoustic VTI wave equation based on the nearly constant Q model

Zhang Shan-Shan, Gu Bing-Luo, Li Zhen-Chun

International Meeting for Applied Geoscience and Energy (IMAGE)

... are obtained by numerical simulation of equation (3) and are used for migration. In the Q-VTILSRTM process, the nonlinear conjugate gradient method is used...

2022

Retrieving high-resolution acoustic impedance using full-waveform inversion in presalt reservoir setting, offshore Brazil

Akshat Abhishek, Alok K. Soni, Rene-Edouard Plessix, Martijn Blaauw, Jaydip Guha, Gautam Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Tarantola, A., 1986, A startegy for nonlinear elastic inversion of seismic reflection data: Geophysics, 51, 1893–1903, doi: https://doi.org/10.1190/1...

2022

Incorporating Secondary Information Using Direct Sequential Cosimulation

A. Soares, J. A. Almeida, L. Guerreiro

AAPG Special Volumes

... a nonlinear function, , is used to obtain the local intervals of the global CDF, the expectation of zs(xu) may not be equal to z(xu)*. In other words, E{ys...

2006

A New Method for Handling the Nugget Effect in Kriging

K. Krivoruchko, A. Gribov, J. M. Ver Hoef

AAPG Special Volumes

... and measurement error of the nugget effect to be specified for linear kriging methods (i.e., for simple, ordinary, and universal kriging). Nonlinear kriging...

2006

Brazos A-105 D-Sand Reservoir Modeling by Integration of Seismic Elastic Inversion Results with Geostatistical Techniques

W. Xu, K. Wrolstad, D. Kramer, P. Dooley, K. Domingue, D. T. Vo

AAPG Special Volumes

... the nonlinear zero-frequency limit of the Biot (1962) equation or, equivalently, the Gassmann's (1951) equation. However, gas is encountered to some...

2006

Geophysical Insights into Completions and Production Predictability for a Shale Gas Reservoir Using Fault Intensity and AVO Inversion

Carl Reine, Sean Lovric

Unconventional Resources Technology Conference (URTEC)

..., 1983, Measuring the strangeness of strange attractors: Physica D: Nonlinear Phenomena, 9, 189-208. Gray, D., P. Anderson, J. Logel, F. Delbecq, D...

2013

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

Cosmin Macesanu, Faqi Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... implicit finite difference migration with nonlinear optimized four-direction splitting expansion: 80th Annual International Meeting, SEG, Expanded...

2022

Thermal Alteration

John B. Comer

Special Publications of SEPM

... regression used to calculate E and A. Of course, other forms of equations (14) through (16) are possible and the nonlinear equations can be solved...

1992

Recursive DIP for seismic random noise attenuation

Yun Zhang, Benfeng Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... accuracy. The used nonlinear activation function during the training is the RELU function, and the learning rate is set to 0.0001.   k...

2022

3D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

Zhaolun Liu, Jrgen Hoffmann, Frederik J. Simons, Jeroen Tromp

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Stoffa, 1990, Nonlinear seismic waveform inversion in one dimension using simulated annealing: Geophysics, 56, 1119–1122, doi: https://doi.org...

2022

Reducing parameter coupling effect for subsoil density estimation using 3D seismic full-waveform inversion with horizontal-force source

Y. Kawasaki, S. Minato, R. Ghose

International Meeting for Applied Geoscience and Energy (IMAGE)

... nonlinear iteration, compared to a standard gradient-based approach. The computational burden can be a significant problem in 3D near-surface applications...

2022

Alternate and Emerging Methodologies in Geochemical and Empirical Modeling

James R. Wood, Alan P. Byrnes

Special Publications of SEPM

... to be reanalyzed. Nonparametric and Nonlinear Regression Analysis While linear models are easy to develop, least squares linear multivariate regression...

1994

Fault identification in SE Limerick basin (Ireland) using a multi-geophysical data integration and unsupervised machine learning approach

Prithwijit Chakraborti, Aline Melo, Eoin Dunlevy

International Meeting for Applied Geoscience and Energy (IMAGE)

... (e.g., Wang et al., 2021). A distance-based clustering algorithm such as fuzzy c-means, performs well on globular or nonlinear cluster shapes but loses...

2022

Joint 3D inversion of gravity and magnetic data using deep learning neural networks

Nanyu Wei, Dikun Yang, Zhigang Wang, Yao Lu

International Meeting for Applied Geoscience and Energy (IMAGE)

... the potential of deep learning in processing nonlinear mappings from data to inversion models. However, DL joint inversion has not been made possible for 3D...

2022

A strategy for acoustic impedance direct inversion in depth domain

Ruiqian Cai, Chengyu Sun, Shizhong Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... represent the depthdomain seismic data, the impedance, the nonlinear forward modelling operator, and the random noise, respectively. Then the depth-domain...

2022

Q-compensated least-squares reverse time migration by considering velocity and Q perturbations

Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... parameters and A denotes a nonlinear seismic wavefield forward modeling operator. The superscript “~” denotes Q-attenuation. To solve the Qcompensated...

2022

Triangular impulse tests for stratified gravity inversion

Guibao Liu, Hua-Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

..., A. N., and V.Y. Arsenin, 1977, Solutions of ill-posed problems: Winston. Zhang, J., and M. N. Toksoz, 1998, Nonlinear refraction traveltime tomography...

2022

Where's the Data? Acquisition and Processing of Seismic Data in the PNG Highlands

Subhash Chandra, Geoff Mansfield, Peter Carver

Petroleum Exploration Society of Australia (PESA)

... and Exploration Geophysics. Zhang, J., and M. N. Toksoz, 1998, Nonlinear refraction travel-time tomography:Geophysics, 63, 1726-1737. ACKNOWLEDGEMENT...

2015

Amplitude enhancement of far-offset refractions via machine learning

Lurun Su, Han Wang, Jie Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

....x. Zhang, J., and M. N. Toksöz, 1998, Nonlinear refraction traveltime tomography: Geophysics, 63, 1726–1737, doi: https://doi.org/10.1190/1.1444468...

2022

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