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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic
Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim
Unconventional Resources Technology Conference (URTEC)
...-optimal map of microseismic events. Accurate effective velocity modeling is also essential for travel time computation, used for a least squares...
2016
Identifying Re-Stimulation Effectiveness by Utilizing Microseismic Attributes
M. Preiksaitis, A. Baig, S. Bowman-Young, T. Urbancic
Unconventional Resources Technology Conference (URTEC)
...ate an Energy Index model was performed using the both the initial and refrac datasets. This least squares fit model can then be applied to each ev...
2016
The effects of marine currents on seismic data
Gary Hampson
International Meeting for Applied Geoscience and Energy (IMAGE)
... also be used in least squares migration or full waveform inversion and in principle it accommodates multiples. However, since the Doppler effect...
2024
Improved interpretability from elastic full-waveform inversion model-based seismic images revitalizes Paleogene development in the Gulf of Mexico
Abhijit Gangopadhyay, Li Jiang, Robert Chrisman, Sanjay Banerjee, Han Su, Bin Deng, Bharat Bonala, Jiawei Mei
International Meeting for Applied Geoscience and Energy (IMAGE)
... 3i) better reveals the geologic features in the low-illumination zones and shows an improved S/N around the Paleogene because of the iterative least...
2024
A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media
Long Wu, Yixian Xu, Shigang Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and J. Han, 2022, Q-compensated least-squares reverse time migration in TTI media using the visco-acoustic TTI wave equation based on the SLS model...
2024
Sedimentary Variation: Some New Facts and Theories
Percival Allen
Journal of Sedimentary Research (SEPM)
..., the general form of the central trend (constru ted by "least squares" in the ordinary way) is remarkably constant. This exhibits practical...
1945
Well Productivity Analysis of the Bakken Shale Play
Emilian R. Vankov, Svetlana Ikonnikova, Gurcan Gulen, Kenneth Medlock
Unconventional Resources Technology Conference (URTEC)
... process associated with equation (2) has a constant mean and variance, we can use ordinary least squares to estimate all parameters. As previously discussed...
2017
The Application of Dielectric Logs to the Recognition of Oil Versus Water-Wet Reservoirs and in the Determination of Relative Permeabilities
Ivan D. Pinzon, G. B. Asquith
West Texas Geological Society
... textural parameter W (W=m=n) for each well with a dielectric log using least squares summation (Pinzon, 1993). It was necessary to derive W values...
2020
The Application of Dielectric Logs to the Recognition of Oil Versus Water-Wet Reservoirs and in the Determination of Relative Permeabilities
Ivan D. Pinzon, G. B. Asquith
West Texas Geological Society
... textural parameter W (W=m=n) for each well with a dielectric log using least squares summation (Pinzon, 1993). It was necessary to derive W values...
1994
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
In Situ Logs of Gas Composition of CO2-ECBM Trial in Buchanan County, Virginia, with Downhole Reservoir Raman System
Grant A. Myers, Alec Cookman, Nino Ripepi
Unconventional Resources Technology Conference (URTEC)
... of carbon dioxide Raman response to pressure; (a) background-subtracted carbon dioxide doublet for the range of pressures indicated; (b) linear least...
2019
Deep Learning for Quantitative Hydraulic Fracture Profiling from Fiber Optic Measurements
Weichang Li, Han Lu, Yuchen Jin, Frode Hveding
Unconventional Resources Technology Conference (URTEC)
... least squares (OLS) regression and robust version, least absolute deviation (LAD) regression have been applied in (Park et al. 2018) to convert...
2021
Event Sedimentation and Long-Term Accumulation in a Salt Marsh: St. Louis Bay, Mississippi
Lawrence A. Febo, Triniti A. Dufrene, Dana A. Watzke, Samuel J. Bentley
GCAGS Transactions
... negligible bioturbation in basal core sections, with a least-squares fit of the following equation to the data: Az=Ao exp (z/s) where Az equals activity...
2003
Quantitative Statistical Analyses of Columbia River Sediment Samples
James C. Kelley, John T. Whetten
Journal of Sedimentary Research (SEPM)
... samples from the Columbia reservoirs and from the Snake River were included in the analysis. Least squares polynomials to the fourth order were computed...
1969
EXTENDED ABSTRACT: Conforming and Non-Conforming Sands - An Organizing Framework for Seismic Rock Properties
Young, Roger A. and LoPiccolo, Robert D.
GCAGS Transactions
..., muted, moved-out, and migrated set of gathers is analyzed on a sample-by-sample basis. A least-squares, best-fit line is fitted to the amplitudes...
2004
Effect of Fault-Related Granulation on Porosity and Permeability of Quartz Sandstones, Simpson Group (Ordovician), Oklahoma
Edward D. Pittman
AAPG Bulletin
.... Computer programs for least squares and regression analysis were used to fit the data and test for its statistical significance. DESCRIPTION...
1981
Free Hydrocarbons in Uinta Basin, Utah
Ganjavar Khavari-Khorasani
AAPG Bulletin
... River; GR = Green River (modified from Bell and Hunt, 1963). End_Page 1193------------------------------ A least-squares curve fit computer program...
1984
Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley, Colombia
William Thompson-Butler, Kenneth E. Peters, Leslie B. Magoon, Allegra Hosford Scheirer, J. Michael Moldowan, Vladimir Orlando Blanco, Roman Eugenio Gonzalez, Stephan A. Graham, John E. Zumberge, and David A. Wavrek
AAPG Bulletin
... among oil samples from the MMV. In addition, alternating least squares of concentration (ALS-C) is employed to identify end-members and deconvolute...
2019
ABSTRACT: Gravity Model of Mud Volcanoes; #90013 (2003)
FAKHRADDIN KADIROV, IAN LERCHE, IBRAHIM GULIYEV, AZER KADYROV, ABDULVAHAB MUKHTAROV, AKBAR FEYZULLAYEV
Search and Discovery.com
... condition on a multi-parameter functional describing the least squares difference between modeled and observed gravity fields and involving parameters...
2003
How to Look at Frontier Basins: An Example from the Canadian Arctic; #10724 (2015)
Robert Meneley
Search and Discovery.com
... are the discovered fields in the model range. The Solver module in Excel is used to reach a minimum least squares solution for a lognormal curve fit using...
2015
Geothermal Conditions and Their Implications for Basement Tectonics in the Gulf Coast Margin
Douglas L. Smith , William T. Dees , Danny W. Harrelson
GCAGS Transactions
...; and least squares gradients were determined, where necessary, for separate lithologic zones penetrated by the boreholes. Drilling practices in the Gulf Coast...
1981
The Influence of Transport Fluctuations on Spatially Averaged Topography on a Sandy, Braided Fluvial Fan
Chris Paola, Gary Parker, David C. Mohrig, Kelin X. Whipple
Special Publications of SEPM
... of the form O F t and to may be E where F is a least squares fitted function and E is a normally distributed random variable with zero mean This allows...
1999
Chronostratigraphy of a Prograded Carbonate Platform Margin: A Record of Dynamic Slope Sedimentation, Western Great Bahama Bank
Donald F. Mcneill, Gregor P. Eberli, Barbara H. Lidz, Peter K. Swart, Jeroen A.M. Kenter
Special Publications of SEPM
... unstClble C Detennination of inclination SOO'c. utilized a by 500 Determination of inclination angles utilized a least-squares thatofKirschvink 1980...
2001
Pore Water Salinity as a Tool for Evaluating Reservoir Continuity and Fluid Migration Pathways in the Wilcox Group of Central Louisiana
Masaaki Funayama ,, Jeffrey S. Hanor
GCAGS Transactions
... and Rm75, using techniques described in Funayama (1990). Linear least squares regressions through these data give reasonable fits. Coefficients from...
1995
Feldspar--Grain Size Relations in Cambrian Arenites, Upper Mississippi Valley
I. Edgar Odom
Journal of Sedimentary Research (SEPM)
... highly feldspathic. The correlation coefficient of 0.871 for the least squares regression line is good considering that the composition was determined...
1975