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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,293 documents.
Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)
Ricardo C. Rebollo, Mauricio D. Sacchi
Search and Discovery.com
... capable of de- emphasizing smoothing along areas of incongruent dips. References Leaney W.S., M.D. Sacchi, and T.J. Ulrych, 2009, Least-squares...
2014
Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)
Aaron Stanton
Search and Discovery.com
... prediction-error filters. While prior efforts have focussed primarily on P-wave seismic data, this article considers the application of least squares...
2015
Least-squares non-stationary triangle smoothing
Reem F. Alomar, Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
...Least-squares non-stationary triangle smoothing Reem F. Alomar, Sergey Fomel Least-squares non-stationary triangle smoothing Reem F. Alomar...
2022
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
Algorithm Comparison with Cross Sections: Appendix A
David E. Hamilton, Thomas A. Jones
AAPG Special Volumes
... of algorithms. Figure 1 is a map showing the distribution and values of the synthetic data with contours drawn using a least-squares gridding algorithm...
1992
Predicting Estimated Ultimate Recovery from Flowing Material Balance Analysis Considering Rock and Connate Water Expansion for Unconventional Gas Reservoirs
Aykut Atadeger, Mustafa Onur, Leslie G. Thompson, Barry A. Ruddick
Unconventional Resources Technology Conference (URTEC)
...ions. Here, we use the robust straight-line fitting technique presented by Schlossmacher (1973) to avoid susceptibility of ordinary least-squares ...
2021
Abstract: Making FX Interpolation More Robust by Spectrum-guided Reconstruction; #90171 (2013)
Mostafa Naghizadeh and Mauricio Sacchi
Search and Discovery.com
... the least-squares method (Duijndam et al., 1999). We illustrate with synthetic examples that the proposed method can handle gaps and extrapolation problems...
2013
Modeling the Semivariogram: New Approach, Methods Comparison, and Simulation Study
A. Gribov, K. Krivoruchko, J. M. Ver Hoef
AAPG Special Volumes
... procedure using modified iterative weighted least squares is presented. This algorithm is shown to be reliable for a wide range of data types...
2006
Operator chains and seismic data decomposition
Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
...ficient approximations is seismic least-squares migration (Nemeth et al., 1999). Compared to the conventional migration, the effect of the least-squares...
2022
Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12
E. W. Peikert
AAPG Special Volumes
... Although smoothing of velocity data within seismic sequences can result in improved estimates of Vint, there are at least two fundamental limitations...
1985
Abstract: Trace Interpolation and Elevation Statics by Conjugate Gradients; #90172 (2014)
Marcus Wilson, Robert J. Ferguson
Search and Discovery.com
... is computed using an assumed velocity model and the wavefield at depth is derived using weighted damped least squares. This method is used to correct common...
2014
Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt Provinces
Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
GCAGS Transactions
...Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt...
2016
Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)
Sergey Fomel
Search and Discovery.com
... is to estimate coefficients an, n = 1,2,…,N such that the prediction error N e(x) = d(x) - å an bn (x) (1) n=1 is minimized in the least-squares sense...
2014
Five Geological Datasets: Appendix B
David E. Hamilton, Thomas A. Jones
AAPG Special Volumes
..., and the least-squares gridding algorithm with smoothing filter was used (see Appendix A, this volume). STRUCTURAL TOP OF A COAL UNIT These control points...
1992
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
Mineral Resource Estimation and Statistical Exploration
F. P. Agterberg
CSPG Special Publications
.... The method then proceeds by smoothing the intercept for any direction a by replacing it by the value of a parabola fitted by least squares to all intercepts...
1980
Abstract: De-Convoluting Mixed Crude Oils in Prudhoe Bay Field Using Chemometrics; #90063 (2007)
Search and Discovery.com
2007
Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin
Lv Yongchang, Li Daoshan, Wang Yongming, Meng Jie, Feng Xukui, Hu Dan, Wu Xiaofeng, Kong Zhaoju
International Meeting for Applied Geoscience and Energy (IMAGE)
...Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin Lv Yongchang, Li Daoshan, Wang Yongming, Meng Jie...
2022
Abstract: Designing Wavefield Extrapolators using a Weighted Least-Squares with a Transition Band Approach; #90211 (2015)
Saleh Al-Saleh, John Bancroft, Gary Margrave
Search and Discovery.com
...Abstract: Designing Wavefield Extrapolators using a Weighted Least-Squares with a Transition Band Approach; #90211 (2015) Saleh Al-Saleh, John...
2015
High-resolution imaging using Gaussian beam point-spread-function deconvolution
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
..., George McMechan, The University of Texas at Dallas SUMMARY By fitting observed data with predicted seismograms, least-squares migration (LSM) computes...
2023
Least-squares reverse-time migration with angle gathers through point spread functions
Jianyong Bai, Orhan Yilmaz
International Meeting for Applied Geoscience and Energy (IMAGE)
...Least-squares reverse-time migration with angle gathers through point spread functions Jianyong Bai, Orhan Yilmaz Least-squares reverse-time...
2022
Adaptive regularization parameter estimation in image domain least-squares migration
Shen Sheng, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...Adaptive regularization parameter estimation in image domain least-squares migration Shen Sheng, Huazhong Wang Adaptive regularization parameter...
2024
ABSTRACT: Integrating Geological, Logging, and Seismic Information for Pore Pressure Prediction, by Li-Yun Fu, Kevin Dodds, and Xiuming Wang; #90913(2000).
Search and Discovery.com
2000
Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)
Michel Schonewille, Peter Aaron, Carl Notfors
Geological Society of Malaysia (GSM)
... the data into 3 distinct events which can be muted before the inverse transform. Hampson formulated the parabolic decomposition using least squares...
2008
Damped least squares-based deterministic PP wave and SH-SH wave joint inversion method
Ying Lin, Guangzhi Zhang, Baoli Wang, Siyuan Chen, Minmin Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
...Damped least squares-based deterministic PP wave and SH-SH wave joint inversion method Ying Lin, Guangzhi Zhang, Baoli Wang, Siyuan Chen, Minmin...
2023