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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,293 documents.
Shaping regularization by fast explicit diffusion
Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
...; Chen and Fomel, 2015), least-squares migration (Xue et al., 2016), etc. A common form of shaping is smoothing, which can be implemented efficiently...
2022
Optical Methods for Monitoring Treating Chemicals in Oilfield Water Systems
Dale F. Brost, Frank M. Rexach, Gregory A. Winslow
Indonesian Petroleum Association
... (1989). Geladi, P., and Kowalski, B. R., Partial Least-Squares Regressior.: a Tutorial, Analytica Chimica Acta, 185 (1986) 1-17. There is little doubt...
1991
Research on buried hill fracture prediction based on sweet spot attributes of gradient structure tensor in dominant frequency band
Min Gong, Bo Wang, Lin Wang, Rui Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
... be used to perform ellipse fitting through the least squares method, and the ratio K of the short axis to the long axis of the ellipse can be used...
2024
Characterization of multiphase fluid displacements by the geoelectric method at a laboratory microscale
Adrián Tichno, María Victoria Bongiovanni, Lucas Pavlov, Ana Osella, Matías de la Vega
International Meeting for Applied Geoscience and Energy (IMAGE)
..., e2020EA001575. Hele-Shaw, H.S., 1898, The flow of water: Nature, 58, 34–36. Loke, M. H., and R. D. Barker, 1996, Rapid least-squares inversion of apparent...
2024
Abstract: Processing 3-C Heavy Oil Data for Shallow Shear-wave Splitting Properties; #90174 (2014)
Richard Bale, Tobin Marchand, Keith Wilkinson, Kurt Wikel, and Robert Kendall
Search and Discovery.com
... = 1, ..., N, where A t 1 2 A1 t A2 t and ΔAt 1 2 (1) A1 t A2 t . Equation (1) can be inverted in a least-squares...
2014
EUR Assessment of Unconventional Assets Using Machine Learning and Distributed Computing Techniques
Zhenyu Guo, Chaohui Chen, Guohua Gao, Richard Cao, Ruijian Li, Chunlei Liu
Unconventional Resources Technology Conference (URTEC)
..., 2016. Cortes, C., and Vapnik, V. 1995. Support-vector networks. Machine learning, 20(3), 273-297. De Brabanter, K. 2011. Least squares support vector...
2017
A Geological Model Log Analysis Technique for Complex Lithologies
George L. Fisher, James P. Wallace
Indonesian Petroleum Association
... although other methods can also be used to apply these concepts. The Appendix highlights the least squares method as discussed by Claerbout (1976...
1984
Downhole Reservoir Raman System for Carbon Sequestration Measurement, Reporting, and Verification
Grant A. Myers, Alirza Orujov, Trevor Brown, Cody Morgan, Wade Bard, John Pope
Unconventional Resources Technology Conference (URTEC)
... calibration data sets. Figure 11 displays the linear least-squares (LLS) fitted data along with the lower and upper confidence limits. From Figure 11...
2025
Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand
Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim
Petroleum Exploration Society of Australia (PESA)
... of diving-wave FWI followed by four CIP tomography updates. Then, Q-FWI was performed to resolve the shallow gas Q bodies, followed by least-squares FWI using...
2019
Abstract: Seismic to Reservoir Simulation: A Cooperative Inversion; #90187 (2014)
Larry Lines and Amir Shamsa
Search and Discovery.com
... (to within acceptable error levels), we use optimization methods. This is often done by some form of least-squares AAPG Search and Discovery Article #90187...
2014
Paleostress and Slip Recovery from Complex Faults Geometry Using Mechanical Interactions: Application to Fracture Prediction, #40439 (2009)
Frantz Maerten and Laurent Maerten
Search and Discovery.com
.../strain estimation: Algorithm AAPG Denver, 2009 (Classical iterative-Poly3D with mechanical interactions) (Least Squares with mechanical interactions...
2009
Quantitative Characterization of Fracture Frequency Variations Using a Linear Piecewise Regression Analysis and the Akaike Information Criterion; #42147 (2017)
Alex P. O’Hara, Robert D. Jacobi
Search and Discovery.com
.... Jacovi, and H. David Sheets, 2017, Predicting the width and average fracture frequency of damage zones using a partial least squares statistical...
2017
Abstract: Time-varying Wavelet Estimation and Deconvolution; #90171 (2013)
Mirko van der Baan
Search and Discovery.com
... was an employee of the University of Leeds when the majority of this work was done. References Berkhout, A. J., 1977, Least-squares inverse filtering...
2013
Abstract: Model Parametrization Strategies for Newton-Based Acoustic Full Waveform Inversion; #90224 (2015)
Amsalu Y. Anagaw
Search and Discovery.com
...) methods are used for full waveform inversion. Theory Waveform inversion often uses the least-squares misfit defined as the l2 norm of residual between...
2015
Upside down Rayleigh-Marchenko imaging: an application to the Volve ocean-bottom cable data
Ning Wang, Matteo Ravasi
International Meeting for Applied Geoscience and Energy (IMAGE)
...d (−xR , xF ). The resulting equations, which contain only two unknowns (i.e., the focusing functions), can be now solved by means of the least-square...
2024
PALEOMAGNETIC ORIENTATION OF FRACTURES IN CORES FROM SOUTHWESTERN MANITOBA FOR HORIZONTAL WELL PLANNING
K. P. GILLEN
Williston Basin Symposium
..., v. 81, p. 75-87. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data, Geophysical...
1998
Deep Dix: Enhancing interval velocity model estimation through adversarial regularization
Joseph Stitt, Robert Clapp, Biondo Biondi
International Meeting for Applied Geoscience and Energy (IMAGE)
... early and later times are given equal priority through time indexing. Thus, we can pose the objective function in this least-squares problem with two...
2023
Geophysical Techniques in the Study of Hydrocarbon-Contaminated Soil
Umar Hamzah, Mohd Azmi Ismail, Abdul Rahim Samsudin
Geological Society of Malaysia (GSM)
... survey. automatically subdivide the subsurface into a number of blocks and then it uses a least-squares inversion scheme to determine...
2008
Geophysical Investigation Using Resistivity and GPR: A Case Study of an Oil Spill Site at Seberang Prai, Penang
Zaw Win, Umar Hamzah, Mohd Azmi Ismail, Abdul Rahim Samsudin
Geological Society of Malaysia (GSM)
... and then use a least-squares inversion scheme to determine the appropriate resistivity values for each block in 2-D. In the resistivity survey...
2011
Sequential Shrinking Particle Swam Optimization (SSPSO) and Hierarchical K-Means Clustering Methods to Improve Probabilistic History Matching and Forecast
Theoza Nopranda
Indonesian Petroleum Association
... S. P. 1982. Least Squares Quantization in PCM. IEEE Transactions on Information Theory 28: 129-137. https://doi.org/10.1109/TIT.1982.1056489 5...
2022
Abstract: Computer-Generated "Scale Functions" for Conversion of Resistivity to Pseudovelocity Logs, by R. F. Blakely, J. F. Whaley, M. E. Biggs, A. J. Rudman; #90972 (1976).
Search and Discovery.com
1976
Abstract: Contouring Geologic Data from Arbitrary Points, by D. R. McDonald, C. J. R. Braithwaite, A. Jawad Ali; #90968 (1977).
Search and Discovery.com
1977
ABSTRACT: Absolute Elemental Concentrations Estimated from Geochemical Well Logging Using Neutron-Induced Gamma-Ray Spectrometry and a Geological Model, by James A. Grau and Michael M. Herron; #91038 (2010)
Search and Discovery.com
2010
Abstract: Stable-Isotopic Comparison of a Late Eocene Archaeocete Whale, Basilosaurus cetoides, to a Modern Cetacean, Tursiops truncatus
Edwin W. Emmer , Dean A. Dunn
GCAGS Transactions
..., Mississippi, provided oxygen isotopic values for cetacean bone phosphate, carbonate cement, and structural carbonate. The least-squares regression...
1997
ABSTRACT: Cooperative Inversion of Geophysical Data, by Larry Lines, Alton K. Schultz, and Sven Treitel; #91035 (2010)
Search and Discovery.com
2010