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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,616 documents.
Ultrasonic velocity tomography of rock sample
Tian Xie, Jiajia Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
...ps://doi.org/10.1190/segam2020-3428143.1. Qingyang, L., Y. Guo, Q. Cai, F. Meng, G. Qin, and N. Li, 2019, Multi-sources least-squares reverse time migrati...
2023
Application of Fourier Transform Infra-Red Spectroscopy in Determination of Reservoir Properties
John Woods
Indonesian Petroleum Association
... appropriate spectral reprocessing programs were applied which included second derivative and least squares to solve overlap issues for the mineralogy...
2014
Determination of Well Productivity Using Pump Downtime Data
Jeff Spath
Indonesian Petroleum Association
... unknowns (PI and skin). The model is then compared, in a least squares sense, with the actual runtime data. The unknowns are updated and the process...
2000
Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia
Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran
Indonesian Petroleum Association
... traveltimes which are then evaluated for a least squares fit with the observed traveltime picks. The model is automatically updated in depth...
2000
Effects of Sea-Level Rise on Deltaic Sedimentation in South-Central Louisiana
John T. Wells
Special Publications of SEPM
... by constructing a non-linear least-squares fit to the data points for each flood year and extracting a value for subaerial land at the mean sea-level...
1987
Geophysics used to help find good quality groundwater in the Vientiane Plain, Lao PDR
Michael Hatch, Okke Batelaan, Eddie Banks, Somphasith Douangsavanh
Petroleum Exploration Society of Australia (PESA)
..., 1996. Rapid least-squares inversion of apparent resistivity pseudosections by a quasiNewton method, Geophysical Prospecting, vol. 44, 131-152...
2019
Robust phase-driven time warping FWI for salt reconstruction
Guanghui Huang, Alejandro Alcudia-León, Jaime Ramos-Martínez, Nizar Chemingu
International Meeting for Applied Geoscience and Energy (IMAGE)
... for overcoming cycle-skipping, to conventional least-squares FWI aimed at refining the velocity field. Our new approach prioritizes phase alignment between...
2024
Extended Abstract: Integrating Time-Lapse 3D (4D) Seismic Data with Reservoir Simulators
John Waggoner
Petroleum Exploration Society of Australia (PESA)
... s as the correlation between the two data sets, much as the difference in production data is quantified as the sum of least squares differences. Both the production...
2000
On the Planimetric Shape of Wreck Bay, Vancouver Is.
J. M. Bremner, P. H. LeBlond
Journal of Sedimentary Research (SEPM)
... coordinates of the plan data points and (X, Y) the coordinates of the chosen log-spiral center. b) By the method of least squares, the best fitting straight...
1974
2-D Geoelectrical Resistivity Survey at a Proposed New Condominium Site of Port Dickson Beach Resort, Negeri Sembilan
Abdul Rahim Samsudin, Umar Hamzah
Geological Society of Malaysia (GSM)
.... Proceedings: Denver, Colo., Environmental and Engineering Geophysical Society, CD-ROM, 22 p. Loke, M.H. and Barker, R.D., 1996, Rapid least-squares...
2008
Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada
M. W. Lee, T. S. Collett, W. F. Agena
AAPG Special Volumes
... with the following equation:where a and b are the intercept and slope of the least squares fit of the amplitude ratio. In attenuation measurements...
2009
Verification of Tortuosity Equations: GEOLOGICAL NOTES
S. R. Faris , L. S. Gournay , L. B. Lipson , T. S. Webb
AAPG Bulletin
... distribution data for the samples. The data of columns 7 and 8 were used to obtain a least-squares solution for the relationship between T and F^phgr...
1954
Preprocessing of Logging Data: Part 4. Wireline Methods
J. G. Patchett
AAPG Special Volumes
... is shifted. Also, core data should not be resampled if least squares correlations are planned for calibrating logs or developing porosity and permeability...
1992
Figures: PART 1
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... parameters were estimated using the least-squares technique. End_Page 171------------------------ Fig. 4.8. Minimum and maximum estimates of water...
1990
Trace-Element and Major-Element Stratigraphy in Quaternary Sediments from the Arctic Ocean and Implications for Glacial Termination
A. Aldahan , G. Possnert , R. Scherer , N. Shi , J. Backman , K. Bostrom
Journal of Sedimentary Research (SEPM)
... profile (Figs. 5, 6). The least-squares linear regression correlation coefficients (Tables 2, 3) indicate significantly negative values between...
2000
Chemical Composition of Deep Formation Waters in Southwestern Louisiana: GEOLOGICAL NOTES
Parke A. Dickey , A. Gene Collins , Ivan Fajardo M.
AAPG Bulletin
... concentrations of chloride in formation waters. Dashed lines are least-squares fit of normally pressured waters (leaving out samples 33, 34, 35, and 36...
1972
Dating penecontemporaneous dolomitization in carbonate reservoirs: Paleomagnetic, petrographic, and geochemical constraints
M. T. Cioppa, I. S. Al-Aasm, D. T. A. Symons, K. P. Gillen
AAPG Bulletin
...: Journal of Geophysical Research, v. 94, p. 13681-13703. Kirschvink, J. L., 1980, The least-squares line and plane and the analysis of paleomagnetic data...
2003
P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta
Faranak Mahmoudian
Search and Discovery.com
...; compressional impedance, shear impedance, and density. The approximated Zoeppritz equation is least-squares fitted to the amplitude of all traces...
Unknown
P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta
Faranak Mahmoudian
Search and Discovery.com
...; compressional impedance, shear impedance, and density. The approximated Zoeppritz equation is least-squares fitted to the amplitude of all traces...
Unknown
Abstract: Resolvability Analysis of Single Azimuth Seismic Moment Tensor Inversion; #90171 (2013)
Ismael Vera Rodriguez and Mauricio D. Sacchi
Search and Discovery.com
... displacements for the corresponding component, receiver and wave type. We carried on the inversion by evaluating the least squares solution to equation (5) m...
2013
Abstract: Uncertainty Space for Microseismic Event Locations using a Double Difference Algorithm; #90174 (2014)
Timur Mukhtarov
Search and Discovery.com
... and Least Squares Problems. ACM Transactions on Mathematical Software, 8(2), 195-209. Waldhauser, F. and Ellsworth, W.L., 2000, A Double-Difference...
2014
Abstract: Multi-trace Acoustic-impedance Inversion with Transform-domain Sparsity Promotion; #90174 (2014)
Sanyi Yuan, Shangxu Wang, Ning Tu, and Xiang Li
Search and Discovery.com
... data recovery with curvelet frames: Geophysical Journal International, 173(1), 233–248. Herrmann, F. J., and Li, X, 2011, Efficient least-squares...
2014
Abstract: Violet Grove Time-Lapse Data Revisited: A Surface-Consistent Matching Filters Application; #90187 (2014)
Mahdi H. Almutlaq and Gary F. Margrave
Search and Discovery.com
... baseline and monitor surveys. FFT the above result , then for every frequency, solve the surface-consistent system using least-squares method...
2014
Abstract: Seismic to Reservoir Simulation: A Cooperative Inversion; #90187 (2014)
Larry Lines and Amir Shamsa
Search and Discovery.com
... (to within acceptable error levels), we use optimization methods. This is often done by some form of least-squares AAPG Search and Discovery Article #90187...
2014
Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)
Amsalu Y. Anagaw, Mauricio D. Sacchi
Search and Discovery.com
... (FWI) based on the least-squares principle is in general mathematically ill-posed and, therefore, regularization methods are required to obtain unique...
2015