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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,663 documents.
Seismic data reconstruction using denoising convolutional neural network combined with regularization by denoising
Nanying Lan, Kaiheng Sang, Fanchang Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the reconstruction accuracy of seismic data. Then, we combine the constructed RED objective with a least-squares fidelity term to form a novel SDR model...
2022
Control and Adjustment of Surveys with the Magnetometer or the Torsion Balance
Donald C. Barton
AAPG Bulletin
..., 1924). T. W. Wright and J. F. Hayford, The Adjustment of Observations by the Method of Least Squares with Application to Geodetic Work, Van...
1929
Efficient physics-informed Bayesian inversion of VSP and hydrofrac data
Tian Qiao, George Turkiyah, Gerard T. Schuster
International Meeting for Applied Geoscience and Energy (IMAGE)
... gradient descent solutions for least squares migration (full waveform inversion) can cost no more than 5-10 (30-60) iterations. Each iteration costs about...
2022
Abstract: A New Method of Multiple Attenuation: Multiple Identification and Subtraction (II); #90171 (2013)
Wen-Jing Wu
Search and Discovery.com
... be that the Radon transformation method, based on the best fit to input data by least-squares sense, treats signal and noise equally, and MIDAS, based...
2013
Characterization of natural fracture systems: Analysis of uncertainty effects in linear scanline results
Rafael F. V. C. Santos, Tiago S. Miranda, José A. Barbosa, Igor F. Gomes, Gabriel C. Matos, Julia F. W. Gale, Virginio H. L. M. Neumann, and Leonardo J. N. Guimarães
AAPG Bulletin
... the best fit for the aperture cumulative frequency following a power law, we used the least-squares method (Moritz, 1972).As a complementary treatment...
2015
Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)
Richard Bale, Kostya Poplavskii, and Colin Wright
Search and Discovery.com
... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...
2013
Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)
Richard Bale, Kostya Poplavskii, and Colin Wright
Search and Discovery.com
... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...
2013
Abstract: Time-lapse AVO Inversion; #90187 (2014)
A. Nassir Saeed, Laurence R. Lines, and Gary F. Margrave
Search and Discovery.com
... for the first iteration, which result in a traditional least-squares solution. The estimation of for i=1 is then subsequently substituted again in equation (7...
2014
Origin and Environmental Application of Depth-Related Strontium-Isotope Ratios in Brines from the Wilcox Group (Middle Wilcox Aquifer) of East Central Louisiana.
Glenn F. Huff , Jeffrey S. Hanor
GCAGS Transactions
...-fit lines through dissolved bromide and dissolved chloride data for contaminated MRAA wells were calculated using the parametric least-squares method...
1997
Seismic erratic noise suppression based on Laplacian-scaled mixture prior
Haotian Xu, Weiwei Xu, Wenchao Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... be removed using the least-squares estimator. Basis pursuit denoising (BPDN) is an important method for noise suppression (Chen et al. 2001), which...
2022
Abstract: Multi-component or Vector Dip Filtering Using the S-transform; #90187 (2014)
Kristof De Meersman and Majda Mihoub
Search and Discovery.com
... estimates obtained for each component and using the least squares method described in this abstract are shown in Figure 3. Our filter operated...
2014
Micro transient EM for seismic sand corrections through physics-coupled deep learning
Daniele Colombo, Ersan Turkoglu, Ernesto Sandoval-Curiel, Javier Giraldo-Buitrago
International Meeting for Applied Geoscience and Energy (IMAGE)
..., A method for the solution of certain non-linear problems in least-squares: Quarterly of Applied Mathematics, 2, 164–168, doi: https://doi.org...
2022
Deconvolution of Time-Varying Bottomhole Pressure Improves Rate-Time Models History Matches and Forecasts of Tight-Oil Wells Production
Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh
Unconventional Resources Technology Conference (URTEC)
...: naïve, generalized Tikhonov, truncated generalized singular value decomposition (TGSVD), truncated total least-squares (TTLS) and regularized...
2021
Abstract: Simultaneous Source Separation Via Robust Time Variant Radon Operators; #90187 (2014)
Amr Ibrahim and Mauricio D. Sacchi
Search and Discovery.com
... (1995). The Radon coefficients m are estimated by minimizing equation 1 using, for instance, Iterative Re-weighted Least Squares (IRLS) (Scales, 1987...
2014
Simple Models for the Stress-Dependence of Anisotropic Seismic Velocities in Fractured Rock; #120053 (2012)
Richard L. Gibson, Jr. and Kai Gao
Search and Discovery.com
... of laboratory measurements of P- and S-wave data in Bedford Limestone by Coyner (1984) (symbols) and least squares inversion solution using eqs. 8 to 11 (lines...
2012
ABSTRACT: Building and Testing Mineral Models for Mineral-Based Formation Evaluation, by A. B. Carpenter; #91021 (2010)
Search and Discovery.com
2010
Gravity Analysis of West-Central Calcasieu Parish, Louisiana: ABSTRACT
Forrest Wilson, James A. Noel
AAPG Bulletin
.... With the Bouguer values, these points served as input to least squares and model analysis systems. The least squares trend surfaces were calculated...
1983
One-way full-waveform inversion using frequency-domain model extension
Rustam Akhmadiev, Biondo Biondi, Robert G. Clapp
International Meeting for Applied Geoscience and Energy (IMAGE)
... an inaccurate velocity model. Our method does not involve solving an intermediate least-squares problem for extended reflectivity, enhancing...
2024
The Shape-Assist Technique: Incorporating Stream Channel Interpretations into Computer-Generated Surface Models: Clark County, Kansas: Chapter 3
John F. Fierstien, Arthur V. Brewster
AAPG Special Volumes
... using a least-squares algorithm. We call this resulting surface our form grid (Figure 3). Note: our digitized contour lines actually bifurcate as our...
1992
Geochemical determination of heavy oil viscosity using multivariate statistical algorithms, #90110 (2010)
Jennifer Adams, Barry Bennett, Lloyd Snowdon, Steve Larter
Search and Discovery.com
... viscosity measurements, which often reveal error introduced via sample handling and analysis. Here we present multivariate statistical partial least squares...
2010
The direct linear electromagnetic inverse with constraints
Peter Walker
International Meeting for Applied Geoscience and Energy (IMAGE)
... is in ohms. Figure 3: The inverted resistance for the model in Figure 2 with no constrainsts (i.e using simple least squares). The colour scale...
2024
Physics-based preconditioned multidimensional deconvolution in the time domain
David Vargas, Ivan Vasconcelos, Matteo Ravasi, Nick Luiken
International Meeting for Applied Geoscience and Energy (IMAGE)
... represents the wavefield we wish to recover. MDD in the G frequency domain can be solved as a regularized least-squares problem: 2 2 ˆ ˆ ˆ ˆ min P+ Gp − P...
2022
Exploring seismic data in the flowline domain: Automated extraction of unconformities, facies boundaries and coherent reflections
Dennis Adelved, Jan Erik Lie, Aina Juell Bugge, Peter Bormann
International Meeting for Applied Geoscience and Energy (IMAGE)
.../ 1365-2397.n0079. Wu, X., and S. Fomel, 2018, Least-squares horizons with local slopes and multigrid correlations: Geophysics, 83, no. 4, IM29–IM40...
2024
Nitrobenzene-tetrabromoethane Solutions for the Gravity Separation of Minerals: NOTES
W. A. Mclaughlin, D. C. Berkshire
Journal of Sedimentary Research (SEPM)
.... measured at [1]/[10] mole fraction intervals. By the method of least squares the following empirical relationship was obtained from these data: Density25°C...
1969
Abstract: A Stratigraphic Inverse Simulation Model, by M. A. Lessenger and T. A. Cross; #91004 (1991)
Search and Discovery.com
1991