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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
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
Global Sea-Level Changes During the Past Century
Vivien Gornitz, Sergej Lebedeff
Special Publications of SEPM
... contributing stations by distance from a given cell and relative coastal area. A least-squares regression line is then fitted to the composite regional sea...
1987
Upside down Rayleigh-Marchenko imaging: an application to the Volve ocean-bottom cable data
Ning Wang, Matteo Ravasi
International Meeting for Applied Geoscience and Energy (IMAGE)
...d (−xR , xF ). The resulting equations, which contain only two unknowns (i.e., the focusing functions), can be now solved by means of the least-square...
2024
AEM, Seismic and Power-lines: A hydrogeological case study in Peel, Western Australia
Andrew Pethick, Brett Harris, Olga Barron
Petroleum Exploration Society of Australia (PESA)
.... 5. 6. 7. 8. 1D inversion algorithm (See Raiche et al., 1999 and Raiche et al., 1985). This algorithm uses an SVD non-linear least-squares...
2019
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
Magnetic Stratigraphy and Tectonic Rotation of the Upper Paleocene Pattiway Formation, Caliente Range, San Luis Obispo County, California
Donald R. Prothero, Robert B. Vacca
Pacific Section SEPM
... of America Bulletin, v. 97, p. 1476-1487. Kirschvink, J. L., 1980, The least-squares line and plane and the analysis of paleomagnetic data: examples...
2001
Paleomagnetism of the Upper Paleocene Locatelli Formation, Santa Cruz County, California: Implications for Tectonic Rotation of the Northern Salinian Block
Donald R. Prothero, Ruben A. Lopez
Pacific Section SEPM
..., The least-squares line and plane and the analysis of paleomagnetic data: examples from Siberia and Morocco: Geophysical Journal of the Royal...
2001
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
On the stability of stress inversions from earthquake mechanisms and choosing the fault plane
Adam M. Baig, Sepideh Karimi, Aaron Booterbaugh
International Meeting for Applied Geoscience and Energy (IMAGE)
...://doi.org/10 .1029/97JB01274. Tarantola, A., and B. Villotte, 1982, Generalized nonlinear inverse problems solved using the least squares criterion...
2024
Use of Gravity Meter in Search for Stratigraphic Traps: Geologic Exploration Methods
Craig Ferris
AAPG Special Volumes
..., Theory of errors and least squares: New York, Macmillan, p. 155. Yungul, S. H., 1961, Gravity prospecting for reefs: the effects of sedimentation...
1972
Resolving DAS versus geophone discrepancies using the DAS transform: A comparative study from the CaMI CCS field research station, Alberta
Ali Sayed, Robert R. Stewart, Marie Macquet, Don Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP: Third International Me...
2024
The Slotted Cone Splitter
F. J. Flanagan, R. C. Kellagher , W. L. Smith
Journal of Sedimentary Research (SEPM)
... (12,20) = 2.28, there is no evidence that the interaction is significant. The interaction and the within sums of squares and their degrees of freedom...
1959
Inversion of Salt Diapir and Sedimentary Bed Observations: A Gulf Coast Case History
K. Petersen, I. Lerche
GCAGS Transactions
... is chosen that provides the best least squares fit to that criterion. The evolution is modeled only back to the time of deposition of horizon F due...
1993
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
Rock Magnetic Determination of Angular Deviation in Grain Alignment Between Channel and Levee Sandstones Within a Submarine Fan Channel-Levee Complex, Brushy Canyon Formation, West Texas
Debnath Basu
GCAGS Transactions
... that the anisotropy is measured with sufficient redundancy and the best fit anisotropy tensor was determined using a least squares method. The tensor...
1995
Continental Oceanic Crustal Transition in the Gulf Coast Geosyncline: Rifted Margins: Field Investigations of Margin Structure and Stratigraphy
Abou-Bakr K. Ibrahim , Elazar Uchupi
AAPG Special Volumes
... the first ground arrivals were used in the analyses. Data from the travel time curves were fitted by the least squares method, and the inverse slope...
1982
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
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)
..., 1996. Least Squares Matching: A the area of contact during shear. This is shown Fundamental Measurement Algorithm. In: KB. Atkinson (Ed.), Close...
2001