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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,293 documents.
Kutei Basin: Feasibility Study of a Broadband Acquisition
Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele
Indonesian Petroleum Association
..., the maximum allowed Q factor was limited at 200, and data were preconditioned with a least-squares smoothing (red crosses in figure 5 are Q measurements...
2013
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
2D Vp modeling of the Albian-Cenomanian section using geological constraints, 3D extrapolation, and GRV uncertainty analysis of Aptian presalt reservoir: A Santos Basin example
Vitor Novellino, Alexandre Maul, María González, Fernando Freire
International Meeting for Applied Geoscience and Energy (IMAGE)
... Stratification to Detail Velocity Model Prior to Least Squares Reverse Time Migration: Journal of Applied Geophysics, 195, 104469, doi: https://doi .org/10.1016...
2024
Organic Properties and Source Rock Potential of Two Early Tertiary Shales, Beaufort-Mackenzie Basin: GEOLOGICAL NOTE
Lloyd R. Snowdon
CSPG Bulletin
... in the Toapolok O-54 coaly sample, which contains 3.55% TOC. When a least-squares, first-order regression is carried out on the solvent extractable hydrocarbon...
1987
A factorization-based, tile low-rank parametrization for 3D multidimensional deconvolution
Fuqiang Chen, Matteo Ravasi, David Keyes
International Meeting for Applied Geoscience and Energy (IMAGE)
... a nuclear-norm regularized least-squares approach: 84th Annual International Conference and Exhibition, EAGE, Extended Abstracts, 2023, 1–5, doi: https...
2024
A Simpler Kinetic Model of Vitrinite Reflectance
Noriyuki Suzuki , Hideki Matsubayashi , Douglas W. Waples
AAPG Bulletin
... defined, SIMPLE-Ro has only two free parameters: ^agr and ß in equation 1. The values of ^agr and ß can be determined by least-squares analysis...
1993
Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)
Faranak Mahmoudian and Gary F. Margrave
Search and Discovery.com
... in matrix form can be written as, Gnm×3 X3×1 = Rnm×1 . (24) The unknown vector X = (W11 , W12 , W22 ) can be obtained from a damped least-squares inversion...
2014
AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction
David W. Bell
AAPG Special Volumes
... on a linear scale (Figure 6B) and as dτ on a semi-log plot (Figure 6A). Coefficients for the curves were determined from least-squares fits of the original...
2001
Physics-Informed Machine Learning Approach for Closed-Loop Reservoir Management Using RGNet
Zhenyu Guo, Sathish Sankaran
Unconventional Resources Technology Conference (URTEC)
.... (2002). Weighted least squares support vector machines: robustness and sparse approximation. Neurocomputing, 48(1), 85–105. Suykens, J. A. K...
2024
Automatic facies classification using convolutional neural network for three-dimensional outcrop data: Application to the outcrop of the mass-transport deposit
Ryusei Sato, Kazuki Kikuchi, and Hajime Naruse
AAPG Bulletin
... to the outcrop surface was obtained from each subset of the point cloud using the least-squares method (Figure 2D). Then, each point in the point cloud subset...
2025
Compositional Analysis of Lithologies from Wireline Logs: Chapter 3
John H. Doveton
AAPG Special Volumes
..., this solution is the one that minimizes the sums of squares of the deviations between the original logs and their predictions. The least-squares solution...
1994
NMR Time-Lapse Wettability Assessments in Unconventionals: Insights from Imbibition
S. Kelly, R. J. M. Bonnie, M. J. Dick, D. Veselinovic
Unconventional Resources Technology Conference (URTEC)
... is compared (via a least-squares fit) to a T2 spectrum recorded on a sample with mixed saturations (water and oil) whose wettability is to be determined...
2020
Improving total organic carbon estimation for unconventional shale reservoirs using Shapley value regression and deep machine learning methods
Jaewook Lee, David E. Lumley, and Un Young Lim
AAPG Bulletin
... the Levenberg-Marquardt damped least-squares training method. This method blends the steepest descent method and the Gauss–Newton algorithm, so it has both...
2022
Statistical Appraisal of Seismic Prospects in Louisiana-Texas Outer Continental Shelf
John C. Davis , John W. Harbaugh
AAPG Bulletin
... be found by least-squares methods, which ensure that the sum of the squared differences between the predictions of BOE's and the recoverable...
1983
Least-squares reverse time migration for attenuating TTI media
Xinru Mu, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
...Least-squares reverse time migration for attenuating TTI media Xinru Mu, Tariq Alkhalifah Least-squares reverse time migration for attenuating TTI...
2024
Machine Learning Based Decline Curve - Spatial Method to Estimate Production Potential of Proposed Wells in Unconventional Shale Gas Reservoirs
Y. Kocoglu, M. E. Wigwe, G. Sheldon, M. C. Watson
Unconventional Resources Technology Conference (URTEC)
.../10.2118/179958-ms Cressie, N. (1985). Fitting variogram models by weighted least squares. Mathematical Geology, (17), 563–586. Cressie, N., & Wikle, C. K. (2011...
2020
An Effective Physics-Based Deep Learning Model for Enhancing Production Surveillance and Analysis in Unconventional Reservoirs
Yuewei Pan, Ran Bi, Peng Zhou, Lichi Deng, John Lee
Unconventional Resources Technology Conference (URTEC)
... Smoothing and differentiation of data by simplified least squares procedures. Analytical chemistry, 36(8), 1627-1639. DOI:10.1021/ac60214a047. Sun, Q. a...
2019
The Geometry and Dynamics of Low-Relief Bed Forms in Heterogeneous Sediment in a Laboratory Channel, and their Relationship to Water Flow and Sediment Transport
Sean J. Bennett , John S. Bridge
Journal of Sedimentary Research (SEPM)
... with an accuracy of ± 1 mm. The mean water-surface slope S was obtained from a least-squares linear regression of the water-surface elevations...
1995
Tracerscan – A Spectroscopy Technique for Determining the Distribution of Multiple Radioactive Tracers in Downhole Operations
L. L. Gadeken, H. D. Smith Jr., Choung Nguyen
Indonesian Petroleum Association
... spectroscopy logging. This elemental separation can be achieved using spectral stripping techniques6 or using a weighted least-squares algorithm similar...
1986
Towards more accurate reservoir imaging using FWI: An OBN case study at Trion
Zhen Wang, Sen Mei, Zhuocheng Yang, Joakim Blanch, Ezequiel Genova, Juan-Mauricio Florez-Nino, Humberto Salazar-Soto, Alfredo Vazquez-Cantu
International Meeting for Applied Geoscience and Energy (IMAGE)
... models, which led to better migrated images from least-squares (LS) Kirchhoff and reverse time migration (RTM). However, the reservoir image below...
2022
A strategy for acoustic impedance direct inversion in depth domain
Ruiqian Cai, Chengyu Sun, Shizhong Li
International Meeting for Applied Geoscience and Energy (IMAGE)
.... To demonstrate the improvement of direct inversion results, the results of the damped least squares inversion method are used for comparison. It is worth...
2022
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
Structure-Oriented Texture Model Regression for Seismic Structure Visualization and Interpretation
Dengliang Gao
GCAGS Transactions
... of trigonometric sine function with a specific amplitude, frequency, and phase. Then it performs least-squares linear regression analysis between the model...
2006
Porosity prediction from seismic attributes of the Ordovician Trenton-Black River groups, Rochester field, southern Ontario
O. C. Ogiesoba
AAPG Bulletin
... (Hampson et al., 2001). The first step entails selection of an optimal number of seismic attributes by the least-squares method that follows. Briefly...
2010
Estimating Smectite Content from Seismic Data
Roman Beloborodov, Marina Pervukhina, Valeriya Shulakova, Dimitri Chagalov, Matthew Josh, Michael B. Clennell, Gavin Ward, Matthew Waugh, Juerg Hauser
Australian Petroleum Production & Exploration Association (APPEA) Journal
... and seismic data were then used in a constrained least-squares inversion using linearised Zoeppritz equations (Rüger 1997) to obtain estimates...
2019