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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,357 documents.
Sediment characteristics of some Nova Scotian beaches
Edward Bryant
Atlantic Geology
... are more objective and efficient, and so were used here. These techniques are based on either maximum likelihood or non-linear least squares methods...
1983
Evaluation of Electron Tomography Reconstruction Methods for a Barnett Shale
Laura Frouté, Emeric Boigné, Matthias Ihme, Anthony R. Kovscek
Unconventional Resources Technology Conference (URTEC)
... techniques (Conjugate Gradient Least Squares, Simultaneous Iterative Reconstruction Technique) are used to reconstruct the structure of a Barnett shale...
2021
Open and Closed Number Systems in Stratigraphic Mapping
W. C. Krumbein
AAPG Bulletin
..., is a least-squares index of the linear relations between two variables. The sample variance for any measured variable (such as thickness or percentage...
1962
Synthetic Stratigraphy with a Stochastic Diffusion Model of Fluvial Sedimentation
Jon D. Pelletier, Donald L. Turcotte
Journal of Sedimentary Research (SEPM)
... scales. A least-squares linear fit to the logarithms (base 10) of the data yields a slope of -0.76. This result is consistent with the analysis...
1997
Fold Geometry Within Part of Michigan Basin, Michigan
E. H. Timothy Whitten , Walter A. Beckman, Jr.
AAPG Bulletin
... the actual bedding surfaces by the familiar technique of trend-surface analysis (using the least-squares method to derive the coefficients...
1969
Geochemical Evaluation of Part of the Cambay Basin, India
A. Banerjee , K. L. N. Rao
AAPG Bulletin
... vitrinite reflectances plotted against depth for the two blocks under study. Least-squares best-fit lines for the data indicate hydrocarbon generation...
1993
Unlocking hidden potential in shallow water Gulf of Mexico legacy data for carbon capture and storage exploration
Rachel Collings, Igor Marino, Adriana Arroyo Acosta, Jack Kinkead, Hugo Medel, Trong Tang, Gabriela Suarez, Brett Sellers
International Meeting for Applied Geoscience and Energy (IMAGE)
... updates. To obtain the resolution required to characterize the CCS storage site, a Least Squares Kirchhoff pre stack depth migration (LS-KPSDM) was run...
2024
Abstracts: Padé Approximation for Analyzing Multiple Reflections; #90173 (2015)
Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
... function of a special form. The [ p, q] -Padé approximation of the z-transform function is formulated as a constrained least squares minimization problem...
2015
Abstract: Full Waveform Inversion with Phase Encoded Deconvolution Imaging Condition; #90224 (2015)
Wenyong Pan, Kris Innanen, and Gary Margrave
Search and Discovery.com
.... Introduction Full waveform inversion (FWI), formulated as a least-squares inverse problem, seeks to minimize the difference between the observed data...
2015
Antialiasing 5D Interpolation; #41497 (2014)
Stephen K. Chiu
Search and Discovery.com
... initial model are typically not aliased and can be used to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing...
2014
Current Uses of Computers by Exploration Geologists
J. M. Forgotson, Jr. , C. F. Iglehart
AAPG Bulletin
...: Management Science, v. 12, no. 8, p. 13-312 and p. 13-322. Peikert, E. W., 1963, IBM 709 program for least-squares analysis of three-dimensional...
1967
Auto-Control Model Building Using Machine Learning Regression for Extreme Response Prediction
Darrell Leong, Anand Bahuguni
Australian Petroleum Production & Exploration Association (APPEA) Journal
...: FHs ðh; a; m; p; kÞ ¼ 1 À exp½Àahm expðÀphk Þ ð1Þ with parameters a, m, p and k optimised via least-squares. The conditional probability density...
2020
Meramec Velocity Systematics
Jing Fu, Carl Sondergeld, Chandra Rai
Unconventional Resources Technology Conference (URTEC)
... content. The following fits to the data are obtained by least-squares regression. For compressional velocity (φ is the volume fraction pores, Clays...
2020
Reduced Physics-Based Simulation for Unconventional Production Forecasting A 1D Approach
Stein Krogstad, Miguel A. Jakymec, Amir Kianinejad, Dryonis Pertuso, Sebastien Matringe, Andreas Brostrom, Jakob Torben, Olav Møyner, Knut-Andreas Lie
Unconventional Resources Technology Conference (URTEC)
... 𝑃𝑉), and we can approximate 𝑃𝑉 by solving 𝑓(𝑃𝑉) = 0. Detailed calibration: For the detailed calibration we use a weighted least squares objective...
2025
Nonlinear LS-RTM based on the seismic scale separation and full-wavefield multiparameter FWI
ystein Korsmo, Yang Yang, Nizar Chemingui, Andrey Pankov, Antonio Castiello
International Meeting for Applied Geoscience and Energy (IMAGE)
... Chemingui, Andrey Pankov and Antonio Castiello, PGS Summary Least-squares migration (LSM) images the subsurface through an inversion process and seeks...
2022
Angle-constrained VSP least-squares reverse-time migration based on a high-efficiency stabilized Poynting vector
Xuan Ke, Mauricio Sacchi, Ying Shi
International Meeting for Applied Geoscience and Energy (IMAGE)
...Angle-constrained VSP least-squares reverse-time migration based on a high-efficiency stabilized Poynting vector Xuan Ke, Mauricio Sacchi, Ying Shi...
2023
A graph-space optimal transport FWI approach based on κ-generalized Gaussian distribution
Sérgio Luiz E. F. da Silva, Giorgio Kaniadakis
International Meeting for Applied Geoscience and Energy (IMAGE)
... are compared using an objective function, usually based on the least-squares method (Virieux and Operto, 2009). FWI is a robust methodology that significantly...
2023
Origin of overpressure and pore-pressure prediction in the Baram province, Brunei
Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit
AAPG Bulletin
... (Cp). density = density porosity.The Cp and tma can thus be determined using linear regression (least squares fit) from the density t crossplot...
2009
Evergreening of seismic data to enable carbon storage screening at scale a case study from the Barrow-Dampier sub-basins
Nigel Seymour, Paul Phythian, Merrie-Ellen Gunning, Kiran Ferguson, Suyang Chen, Dayang Aini Binti Awang Piut
Australian Energy Producers Journal
... et al. 2015) and 3D general surface multiple prediction (Bisley and MacNeill 2008; Moore and Dragoset 2008). We subsequently utilised a least-squares...
2024
Improving seismic interferometry for traffic noise by wavefield decomposition and deconvolution
Weiping Cao, Xuri Huang, Yezheng Hu, Yungui Xu, Jing Tang, Hai Yao
International Meeting for Applied Geoscience and Energy (IMAGE)
... and least-squares subtraction of surface waves: 76th Annual International Meeting, SEG, Expanded Abstracts, 2783–2786, doi: https://doi.org...
2022
Understanding the Spatial Geological Heterogeneity of the Delaware Basin from Pre-Stack Seismic Inversion
Simon Payne, Andrew Lewis, Ben Hardy, Venkatesh Anantharamu, Iestyn Russell-Hughes
Unconventional Resources Technology Conference (URTEC)
... were performed using the least squares matching technique (White, 1980). Good ties were observed with cross-correlation values greater than 80...
2019
Quantitative Interpretation of Sedimentary Structures Formed by River Dunes
Suzanne F. Leclair, John S. Bridge
Journal of Sedimentary Research (SEPM)
... of bedform heights, h: p(h = h - 1e-h//() [EQUATION (2)] where and can be estimated using least-squares minimization techniques (Press et al. 1986...
2001
Insights into the Regional Evolution of the Outer Fold-and-Thrust Belt, Niger Delta, from Combining New Techniques in 3-D Sequential Geomechanical Restoration with Decompaction; #41026 (2012)
Pauline Durand-Riard and John H. Shaw
Search and Discovery.com
....-M. Morvan, 1997, A least-squares method for multisurface unfolding: Journal of Structural Geology, v. 19/5, p. 735-743. Maerten, L., Gillespie, P...
2012
A Critique of the Magnolia Field (Columbia County) Case History
E. E. Rosaire , James M. Forgotson
GCAGS Transactions
..., such points fall on a scatter diagram, rather than a straight line, and least squares can be used to determine the relationship Del = a + b Dr Where Del...
1953
The Application of a New Variable Pressure Decline-Curve Analysis Technique to Unconventional Reservoirs in Argentina
Leopoldo M. Ruiz Maraggi, Fernando Tuero, Mark P. Walsh, Larry W. Lake
Unconventional Resources Technology Conference (URTEC)
... in terms of volume per unit pressure). ; , , = ( ; )+ − ( − − ; ). (1) The least-squares regression of the cumulative production is given by Eq...
2023