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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,691 documents.
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: Magnetostratigraphy Dating and Correlation of the Lower Doig and Upper Montney Formations (Lower Triassic), Northeastern British Columbia, Western Canada; #90173 (2015)
Edwin I. Egbobawaye, Vadim A. Kravchinsky, John-Paul Zonneveld, and Murray K. Gingras
Search and Discovery.com
...: linkage to stage boundary definitions. Geological Society, London, Special Publications, 334, 61–102. Kirschvink, J.L., 1980. The least-squares line...
2015
Abstracts: Evaluation of a New 5D Seismic Volume Reconstruction Method: Tensor Completion versus Fourier Reconstruction; #90173 (2015)
Nadia Kreimer and Mauricio D. Sacchi
Search and Discovery.com
.... The operator indicates the 4D inverse Fourier transform. The cost function (3) is minimized using Iterative Reweighted Least-squares (IRLS) following...
2015
Abstracts: Weighing in on the Seismic Scale: The use of Seismic Fault Measurements for Constructing Discrete Fracture Networks in the Horn River Basin; #90173 (2015)
Carl A. Reine and Rory B. Dunphy
Search and Discovery.com
... of the fault lengths and azimuths. The lateral traces of the discontinuities are first modelled in a least-squares fashion as linear events. The points...
2015
Abstracts: Application of Shear-wave Splitting Analysis to Fracture Characterization for a Shaunavon Tight Oil Reservoir; #90173 (2015)
N. Chaminda Sandanayake and Richard A. Bale
Search and Discovery.com
... are almost identical. Theory and Method The analysis for shear-wave splitting has two key steps. First, a pre-stack least-squares analysis...
2015
Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)
Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang
Search and Discovery.com
.... Then, we perturb the initial model parameters until the difference between the modeled and the observed (actual) traveltimes is minimum in the least...
2015
Abstract: Integrated Geophysical Characterization of the Near-Surface at Priddis, Alberta; #90224 (2015)
J. Helen Isaac, Lei Zhi, Don C. Lawton, and L. R. Bentley
Search and Discovery.com
... program, which runs a smoothness-constrained Gauss-Newton least-squares inversion (Sasaki, 1992; Loke, 2000; GeoTomo, 2013). Forward modelling utilized...
2015
A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).
Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam
Search and Discovery.com
... and offsets is moved about the data. At each position, the slope along the CDP axis and residual curvature across the offset axis is computed (via least...
2015
Mapping Depth to Basement Using 2D Werner Inversion of High-Resolution AeroMagnetic (HRAM) Data, #41595 (2015).
Hassan H. Hassan, Robert A. Charters, John W. Peirce
Search and Discovery.com
... of igneous intrusions and faults. Werner inversion uses a least-squares approach to solve for the source-body parameters in a series of moving windows along...
2015
Violet Grove CO2 Injection Project: Monitoring with Timelapse VSP Surveys; #80440 (2015)
Marcia Couëslan, Don Lawton, Michael Jones
Search and Discovery.com
... as a starting point when the velocity model was inverted for anisotropy. A least squares vector wavefield separation technique and the anisotropic...
2015
Quantitative Characterization of Fracture Frequency Variations Using a Linear Piecewise Regression Analysis and the Akaike Information Criterion; #42147 (2017)
Alex P. O’Hara, Robert D. Jacobi
Search and Discovery.com
.... Jacovi, and H. David Sheets, 2017, Predicting the width and average fracture frequency of damage zones using a partial least squares statistical...
2017
Advances in OBN Technology: Full Azimuth, Long Offset Illumination for Complex Reservoirs, #70290 (2017).
John Smythe
Search and Discovery.com
..., orthorhombic) RTM (TTI, VTI, orthorhombic) Least squares RTM Full waveform inversion • Multi-dimensional interpolation • Azimuthal velocity...
2017
Paleomagnetic Data from Mustique, West Indies, suggest counterclockwise rotation in pre-Late Miocene rocks
Burmester, R.F. Beck, M.E. and Speed, R.C.
Geological Society of Trinidad & Tobago
... in sedimentary rocks, J Geophys. Res. 54,131-167. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data...
1995
A Geological Model Log Analysis Technique for Complex Lithologies
George L. Fisher, James P. Wallace
Indonesian Petroleum Association
.... Each model is expressed as a set of linear response equations and then is solved by either matrix inversion or least squares as appropriate...
1984
Use of extended source inversion for estimating the noise level in seismic data
Huiyi Chen, William W. Symes, Susan E. Minkoff
International Meeting for Applied Geoscience and Energy (IMAGE)
... term that is added to the FWI least squares misfit. Then the challenge of performing the optimization shifts to adjusting the penalty weight to balance...
2022