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The AAPG/Datapages Combined Publications Database
Showing 1,450 Results. Searched 195,502 documents.
Antialiasing 5D Interpolation; #41497 (2014)
Stephen K. Chiu
Search and Discovery.com
... transpose of x, F is a multi-dimensional forward Fourier transform, F-1 is a multi-dimensional inverse Fourier transform, and x’ is a least-squares solution...
2014
Abstract: Attenuation Compensation in Least-Squares Reverse Time Migration Using the Visco-Acoustic Wave Equation, by Gaurav Dutta; #90182 (2013)
Search and Discovery.com
2013
Geothermal Characteristics of North Jiangsu Basin and its Tectonic Implications
Wang Yi-hua
Circum Pacific Council Publications
... inverse problems solved using the least squares criterion: Reviews of Geophysics and Space Physics, v. 20, no. 2, p. 219-232 Vasseur, G., et al...
1990
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
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
An adaptive filter-based approach for the Marchenko multiples elimination scheme
Rodrigo S. Santos, Marcelo S. Souza, Daniel E. Revelo, Victor Koehne, Reynam C. Pestana, Diego F. Barrera, Laila D. L. Vergne, Jonathas Maciel
International Meeting for Applied Geoscience and Energy (IMAGE)
... be balanced to satisfy the requisites of the MME. Santos et al. (2021) proposed to formulate the MME technique as a least-squares problem (LSMME...
2023
DETERMINATION OF PALAEOSTRESSES FROM MESOSCALE SHEAR FRACTURES IN CORE SAMPLES USING THE MULTI-INVERSE METHOD
Y. Yamada and A. Yamaji
Journal of Petroleum Geology
... fault-slip data in a least-squares sense. Many fractured reservoir rocks, however, include faults generated during a number of different tectonic...
2002
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
PP-PS depth-domain AVA inversion
Maud Cavalca, Robin P. Fletcher
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Whenever the medium shows some level of geological complexity, this is usually achieved using pre-stack least-squares migration techniques (Fletcher...
2023
Application of Both Physics-Based and Data-Driven Techniques for Real-Time Screen-Out Prediction with High Frequency Data
Jianlei John Sun, Arvind Battula, Brandon Hruby, Paymon Hossaini
Unconventional Resources Technology Conference (URTEC)
... after the maximum surface pressure. Then, step 2 applied a piecewise linear least squares fit library (Jekel and Venter 2019) with three line segments...
2020
Construction and Application of a Stratigraphic Inverse Model
Timothy A. Cross, Margaret A. Lessenger
Special Publications of SEPM
... of the inverse model is to minimize 2 and least squares In a perfect world the inverse model would determine the values of the parameters ab a2...
1999
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
Application of an Inverse Method for Calculating Three-Dimensional Fault Geometries and Slip Vectors, Nun River Field, Nigeria
Hugh G. Kerr, Nicky White
AAPG Bulletin
.... The inverse problem is when the geometry of a fault is calculated from the geometry of at least two deformed beds without any a priori knowledge...
1996
Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)
Nasser Kazemi
Search and Discovery.com
... transformation without losing the data is not a trivial task. Hampson (1986) and Beylkin (1987) proposed a damped least squares solution to tackle the problem...
2015
Data Analysis and Model Development
Alan P. Byrnes
Special Publications of SEPM
... methodology commonly util ized is least squares regression analysis. This analysis is easy to perform, allows easy conceptual examination of the regressions...
1994
Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)
Ricardo C. Rebollo, Mauricio D. Sacchi
Search and Discovery.com
...Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014) Ricardo C. Rebollo, Mauricio D. Sacchi AAPG Search and Discovery Article #90172...
2014
Replacing Decline Curve Analysis
Randy Hazlett, Umer Farooq, D. Krishna Babu
Unconventional Resources Technology Conference (URTEC)
... and reduce it to inverse problem-solving mode using the IMSL nonlinear least squares regression routine, RNLIN, to solve for the basic parameter set: g, b, L...
2020
Abstract: Are Double-Couples Over-Represented in Microseismic Focal Mechanism Studies?; #90172 (2014)
Farshid Forouhideh, David W. Eaton
Search and Discovery.com
... problem is ill-posed (Eaton 2009); consequently the least-squares inverted solutions differ from the input mechanism. The results of this synthetic study...
2014
Abstracts: Blind L1-norm Multichannel Deconvolution for Seismic Source Function Estimation; #90173 (2015)
Jaime Meléndez Martínez
Search and Discovery.com
... the reflectivity is known reduces to a multi-channel damped least-squares solution with quadratic regularization. The cost function from equation (1) is given...
2015
CGG 3D Surface-Related Multiple Modelling: A Unique Approach, #41590 (2015).
David Le Meur, Antonio Pica, Terje Weisser
Search and Discovery.com
.... Introduction Multiple generation “squares” (at least for first order multiples) the degree of complexity of the reverberated reflected energy...
2015
Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)
Scott Leaney, Chris Chapman, and Tadeusz Ulrych
Search and Discovery.com
..., Calgary, Alberta, Canada, May 9-11, 2011 procedure is called “least-squares time reversal” or simple “LTRev” (Leaney, 2008) and can be viewed as a type...
2015
Multicomponent seismic data vector reconstruction via quaternionic matrix factorization
Yonghai Fu, Jianjun Gao, Wenbo Sun, Yandong Wang, Fan Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... problem can be solved via the quaternion alternating least-squares algorithm (Xu and Mandicz, 2015). The solution of equation (8) is as follows, Al +1...
2023
Two Inversion Case Studies from the SCOOP and STACK Area of Oklahoma
Satinder Chopra, Ritesh Kumar Sharma, James Keay
Unconventional Resources Technology Conference (URTEC)
... at these angles are then generated, compared with the real data and the error between them is then minimized in a least squares sense. The output from...
2019
Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)
Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen
Search and Discovery.com
... geological basis requires further investigation. Full waveform inversion algorithm We apply a conventional least-squares formulation of FWI...
2015
Use of Ridge Regression Analysis in Geology: ABSTRACT
Thomas A. Jones
AAPG Bulletin
... distributed variables. The least-squares estimates of the regression coefficients commonly differ from the true coefficients if the independent variables...
1971