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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,357 documents.
Full-elastic AVA extraction using acoustic FWI
Michael Warner, John Armitage, Adrian Umpleby, Nikhil Shah, Henry Debens, Fabio Mancini
International Meeting for Applied Geoscience and Energy (IMAGE)
...-linear least-squares acoustic RTM (Kalinicheva et al., 2020). The speed, repeatability and high-signal-to-noise of the FWI approach, provide advantages...
2022
Simultaneous inversion of velocity and reflectivity for enhanced seismic imaging
Yang Yang, Sriram Arasanipalai, Nizar Chemingui, Neil Paddy, Nicholas Montevecchi, David McCallum
International Meeting for Applied Geoscience and Energy (IMAGE)
... models are essential for high fidelity seismic interpretation. Full Waveform Inversion (FWI) followed by Least-Squares Reverse Time Migration (LS-RTM...
2022
Value of marine vibrators for effective frequency-dependent spatial sampling of seismic wavefield
Arash JafarGandomi, Aparajita Nath, Sergio Grion
International Meeting for Applied Geoscience and Energy (IMAGE)
...-gun array signatures from near-gun measurements — least-squares inversion, bubble motion and error analysis: 85th Annual International Meeting...
2023
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... a nonlinear inverse problem by matching modelled seismic data to recorded field data. The matching is quantified by the residuals of a least-squares...
2016
Full-waveform inversion derived prestack reflectivity gathers
Jian Mao, Xin Cheng, Denes Vigh, James Xu, Qiaofeng Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
... events are focused due to the iterative least-squares nature of FWI. There are three anomalies under the salt where we extracted amplitude information...
2023
Cementation Exponent and Porosity Correlation -A Useful Petrophysical Tool in the Glorieta-Clearfork Dolomite
Souvick Saha, George B. Asquith
West Texas Geological Society
... Archie Parameters m and n Using Least Squares Summation and dielectric Water Saturations in the PASCAL Computer Program MN; Geobyte, October, p. 24–28...
2020
Recognition of an Oil-Wet Carbonate Reservoir in the Mississippian Chester B-Zone Major County, Oklahoma
G. B. Asquith
West Texas Geological Society
... in Exploration Series, No. 5, 47 p. Asquith, G. B. and Souvick Saha, 1991, Determining Archie Parameters m and n using least squares summation and dielectric...
2020
Cementation Exponent and Porosity Correlation - A Useful Petrophysical Tool in the Glorieta-Clearfork Dolomite
Souvick Saha, George B. Asquith
West Texas Geological Society
... Archie Parameters m and n Using Least Squares Summation and dielectric Water Saturations in the PASCAL Computer Program MN: Geobyte, October, p. 24–28...
1992
Recognition of an Oil-Wet Carbonate Reservoir in the Mississippian Chester B-Zone, Major County, Oklahoma
G. B. Asquith
West Texas Geological Society
... in Exploration Series, No. 5, 47 p. Asquith, G. B. and Souvick Saha, 1991, Determining Archie Parameters m and n using least squares summation...
1996
Characterizing Multiple Formations for Gas Production and CO2 Sequestration
Adriana Gordon, Bill Goodway, Evan Mutual, Raul Cova, Scott Leaney, Wendell Pardasie, Matt Ng
Unconventional Resources Technology Conference (URTEC)
... and seismic data. The B-T method generates a smooth least squares wavelet making it an efficient and powerful tool for extracting angle-dependent wavelets...
2023
Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)
Oluwafemi Ogunsuyi, Douglas R. Schmitt
Search and Discovery.com
... by damped least squares technique to determine the changes that needs to occur in the model parameters for the differences in the calculated...
2014
Abstract: AVAZ Inversion for Anisotropy Parameters of a Fractured Medium; #90174 (2014)
Faranak Mahmoudian, Gary F. Margrave, and Joe Wong
Search and Discovery.com
... form can be written as, Gnm6m61 Rnm1. (5) The unknown vector m will result from a damped least-squares inversion, as m (GT G )1GT R where...
2014
Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)
Roohollah Askari and Robert J. Ferguson
Search and Discovery.com
... be solved using the least squares solution by finding an appropriate value for the wavenumber perturbation . The assumption is | | 1. The cost function...
2014
Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)
Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan
Search and Discovery.com
... at the well is a simple two step process where we determine a constant scalar and a constant phase rotation by least squares to match the migrated...
2015
Combining Seismic Inversion and Geostatistics to Predict Reservoir Properties; #42294 (2018)
Dragos Cristea
Search and Discovery.com
..., the underlying geology which gave that particular seismic Fig.1. The regression line is the least-squares fit between response. porosity and impedance...
2018
Prediction of Abnormal Pressure Based on Seismic Data: A Case Study of Exploratory Well Drilling in Pertamina UEP I and UEP II Work Areas
P. Manik, P. A. Soedaldjo
Indonesian Petroleum Association
... be drawn statistically (least squares method). The ITT points which are located to the left of the normal compaction trend line form a subnormal zone...
1984
Seismic inversion with implicit neural representations
Juan Romero, Wolfgang Heidrich, Nick Luiken, Matteo Ravasi
International Meeting for Applied Geoscience and Energy (IMAGE)
..., enabling various seismic inversion tasks beyond the one presented in this work (e.g., pre-stack seismic inversion and image-domain least-squares migration...
2024
Acoustic target-level full-waveform inversion: Applied to ocean-bottom seismic data
Carlos A. N. da Costa, João M. de Araújo, D.J. Verschuur, Aydin Shoja
International Meeting for Applied Geoscience and Energy (IMAGE)
..., 1091–1102, doi: https://doi.org/10.1190/1.1581081. Shoja, A., J. van der Neut, and K. Wapenaar, 2023, Target-oriented least-squares reverse-time...
2024
A comparison of Marchenko multiples elimination schemes based on the beyond Neumann solution
Rodrigo S. Santos, Daniel E. Revelo, Reynam C. Pestana, Victor Koehne, Marcelo S. Souza, Diego F. Barrera, Laila D. L. Vergne
International Meeting for Applied Geoscience and Energy (IMAGE)
...) proposed to formulate the MME technique as a least-squares problem (LSMME), but despite its capacity to avoid the stability issue related to the Neumann...
2024
Using and Improving Surface Models Built by Computer: Part 8. Integrated Computer Methods
David E. Hamilton
AAPG Special Volumes
... that are not supported by data. That is, the structures are by-products of the surface-modeling algorithm. Filters such as least squares, biharmonic...
1992
Estimation of Mineralogy and Lithology from Geochemical Log Measurements (1)
RICHARD F. WENDLANDT and KAMAL BHUYAN
AAPG Bulletin
... analyses. Mineral logs calculated using least-squares inversion programs accurately describe changes in mineralogy and mineral proportions once...
1990
Three-dimensional kinematic modeling of reversible fault and fold development
Natacha Gibergues, Muriel Thibaut, Jean-Pierre Gratier
AAPG Bulletin
.... Szatmari, S. Demercian, D. Coelho, and J. A. Rici, 1993, Least-squares palinspastic restoration of regions of normal faulting: Tectonophysics, v. 221, no. 34...
2009
An Approach to Joint Roughness Measurement in Rock A Comparative Study
Mohd For Mohd Amin, Teo King Beng, Mushairry Mustaffar, Ho Chin Kun, Loh Tar Her
Geological Society of Malaysia (GSM)
... that area-based matching deterministic mathematical model is adopted method utilises a least square solution of for the surface...
2001
Influence of Depositional Sand Quality and Diagenesis on Porosity and Permeability: Examples from Brent Group Reservoirs, Northern North Sea
S. N. Ehrenberg
Journal of Sedimentary Research (SEPM)
... triangles and squares are averages of petrologically analyzed samples with better sand quality (method 1 in Table 3). Solid lines are least-squares fits...
1997
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