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The AAPG/Datapages Combined Publications Database
Showing 1,264 Results. Searched 200,635 documents.
Physics-informed full-waveform inversion using learned wavefield solutions
Xinquan Huang, Tariq Alkhalifah, Fu Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
..., corresponding background wavefield with a frequency of 7.5 Hz, and initial model obtained by smoothing the true velocity model. invert a velocity. The true...
2024
Identifying Volcanic Ash Beds and Lamina-scale Stratigraphy Using Rock Mechanical Properties
Alice Hildick, Jesse Havens
Unconventional Resources Technology Conference (URTEC)
... is the same section with a 4 ft smoothing filter applied to the mechanical curve In addition to sonic and wireline logs, image logs on multiple wells...
2018
Application of distributed fiber optic and borehole-surface jointly acquired seismic data in high-resolution processing of conventional seismic
Zhanqing Yu, Cheng Wang, Miao Kun
International Meeting for Applied Geoscience and Energy (IMAGE)
..., M., D. Cheng, and F. Doherty, 2009, Suppressing VSP migration artifacts an noise by selected-aperture migration and damped least square smoothing...
2024
Use of Gravity, Magnetic, and Electrical Methods in Stratigraphic-Trap Exploration: Geophysical Exploration Methods
L. L. Nettleton
AAPG Special Volumes
... for smoothing of effects from shallow sources, this anomaly is in reasonable accord with the calculated effect of a geometric approximation of the form...
1972
Using Stage Level Microseismic Analysis to Gain Insight Into Fracture Efficiency and Completion Effectiveness
Iris Haihong Wang, Ryan Fairfield, James Courtier, Danny Gray, Shawn Lee
Unconventional Resources Technology Conference (URTEC)
... (KDE) is a non-parametric way to estimate the probability density function of a random variable. KDE addresses a fundamental data smoothing problem...
2018
Managing Challenges in the Fluid Characterization of Indonesia's First Deepwater Gas Condensate Field
Rinenggo Nugroho, Siva Subramanian, Curt. J. Featherstone
Indonesian Petroleum Association
...-function trend should be linear thus it can be used for smoothing of Vrel data. While it is mentioned by Tarek Ahmed (EOS and PVT Analysis, 2006...
2018
Processing and Interpretation of 2-D Seismic Data from the Bighorn Basin, Wyoming
David J. Taylor
Wyoming Geological Association
... moveout correction velocities, correlating them with velocity information from surrounding wells, and then smoothing them across the section...
1998
Cybersteering: Automated Geosteering by Way of Distributed Computing and Graph Databases in the Cloud
Tristan Arbus, Steven Wilson
Unconventional Resources Technology Conference (URTEC)
... seen with more aggressive smoothing efforts, or other methods of trending. It’s also currently unable to deal with faults, but vertical edges...
2019
Chapter 6 - Regional Setting of the Mahakam Delta
George P. Allen, John L. C. Chambers
Indonesian Petroleum Association
... probably absorb the increased rates of river flow during floods, thereby dampening the flood surges and smoothing out the variations in fluvial...
1998
Integrating Wireline Logs and Seismic Data to Analyse the Facies and Paleogeography of Tanjung Formation, Barito Basin, South Kalimantan
Efrilian Adeghea Rosa, Kefi Rahmadio, Faiz Nafi, Jennifer Michelle Sherafim
Indonesian Petroleum Association
..., is a Transgressive System Tract (TST) with a pattern of transgressive electro facies dominated by lithology in the form of fine sandstone smoothing in EAR-1...
2020
The Margins of the Gulf of Mexico: Small Basin Margins
J. Lamar Worzel , C. A. Burk
AAPG Special Volumes
... Ridges Unit. The Sigsbee Unit shows the greatest variation in thickness in the deep Gulf of Mexico. It fills the bathymetric lows, smoothing...
1979
Implementation of Unique Eccentric Reamer Tool to Improve Pull Out of Hole Time and Casing Running Through Borehole Conditioning: A Case Study in Onshore Drilling West Java, Indonesia
Agus Restyanto, I Nyoman Dimas Adhi P., Triadi Herwasto Aribowo, Fachrul Ruzi, Mada Amatori Sutan
Indonesian Petroleum Association
... ineffective at smoothing and enlarging the wellbore. If the bit is too small, the tool could start to drag and potentially even get stuck. b. Drift...
2022
Relating Microseismicity to Geomechanical Strain
Adam M. Baig, Ben Witten, Aaron Booterbaugh
Unconventional Resources Technology Conference (URTEC)
..., and reconciled with the DAS gauge length through a tuning of smoothing parameters. We note that Kostrov summation is essentially an averaging...
2021
Skewness and Kurtosis as Criteria of Normality in Observed Frequency Distributions: NOTES
Thomas A. Jones
Journal of Sedimentary Research (SEPM)
... smoothing was done. As a check on the procedure, the same technique was applied to the sample variances. The distribution of the sample variance is known...
1969
Estimating Real-time Pore Pressure at the Bit via Machine-learning
Matthew Reilly, Gareth Taylor, Orlando De Jesus, Muhlis Unaldi, John Thurmond, Mike Party, Koda Chovanetz
Unconventional Resources Technology Conference (URTEC)
...). Furthermore, smoothing algorithms are often used to average the detection data thus increasing the offset from the drill bit to the estimated pore...
2023
Comparative Experimental Investigation of Damage Variables for Sedimentary and Geothermal Rock Specimens Based on 3D-DIC
Fatick Nath, Eleazar Cabezudo, Nora Garcia Romero
Unconventional Resources Technology Conference (URTEC)
... and the displacement smoothing difference to quantify strain. The calculation of the strain in the displacement gradient can be approximated using...
2024
Detecting Resistivity Tool Malfunctions in Coiled Tubing Drilling Using Generative Artificial Intelligence
Carlos Urdaneta, Cheolkyun Jeong, Xuqing Wu, Jiefu Chen
Unconventional Resources Technology Conference (URTEC)
... the test well. This ensured consistency with the VAE’s decoder, which uses sigmoid activation. No smoothing or filtering was applied, as preserving sharp...
2025
Optimizing Well Spacing to Maximize Horizontal Well Performance and Recovery
Ahmed Alzahabi, Alexander Trindade, Ahmed Kamel, Kiran Sathaye
Unconventional Resources Technology Conference (URTEC)
... drainage Area URTeC: 4262105 5 Estimation Method In this study, the penalized smoothing spline approach by Wood (2017) was employed and implemented...
2025
Paleocurrent Analysis of Trough Cross Stratification
R. H. Dott, Jr.
Journal of Sedimentary Research (SEPM)
... documented comparisons between the two types of data without any smoothing or averaging. The resulting complete map is much too large and complex for jou...
1973
Relationships Among Insoluble Residue, Dolostone and Limestone Facies
David N. Lumsden
Journal of Sedimentary Research (SEPM)
... for insoluble residue and dolomite percentages at Iceberg Canyon. A three term smoothing equation was used (Fox, 1964). FIG. 3. Histograms of the proportion...
1974
Core Resistivity Profiles and Their Bearing on Dipmeter Survey Interpretation
Z. V. Jizba , W. C. Campbell , T. W. Todd
AAPG Bulletin
... smoothing the trace of sharp breaks in lithology. Yet high-resistivity layers in a low resistivity background could offer the best "picks" on which...
1964
Margins of Gulf of Mexico
J. Lamar Worzel, C. A. Burk
AAPG Bulletin
... the bathymetric lows, smoothing the topography to form the Sigsbee Abyssal Plain and the Mississippi deep-sea fan. In drill holes (Fig. 1), it is made up...
1978
Slope Mapping
W. E. Dole, N. F. Jordan
AAPG Bulletin
... to reasonable proportions (Fig. 9). Actually, both the slope computation and the high-frequency cutoff, or smoothing, operation are combined...
1978
Geophysical Evidence for Deep Basin in Western Kentucky
R. K. Soderberg , G. R. Keller
AAPG Bulletin
... implications of the derived models would have been less clear. Densities were determined by visual smoothing of the density logs to determine general...
1981
ABSTRACT: Well-log Feature Extraction Using Wavelets and Genetic Algorithms; #90007 (2002)
Rivera, Nestor, Shubhankar Ray, Andrew Chan, Jerry Jensen
Search and Discovery.com
... Article #90007©2002 AAPG Annual Meeting, Houston, Texas, March 1-13, 2002 wavelet coefficients using nonlinear operations and smoothing filter...
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