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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,636 documents.
3D deblending for marine towed-streamer data
Yangkang Chen, Min Zhou, Ray Abma
International Meeting for Applied Geoscience and Energy (IMAGE)
..., S. Fomel, and J. Sun, 2016, Seismic imaging of incomplete data and simultaneous-source data using least-squares reverse time migration with shaping...
2024
Depth conversion and seismic inversion of the Scarborough gas field
Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong
Petroleum Exploration Society of Australia (PESA)
...; and A least squares regressor is usually a better noise attenuator than gather stacking. There is therefore a balance between the potential quality...
2019
Insights on time-lapse changes from 4D joint full-waveform inversion in Mississippi Canyon, Gulf of Mexico
Markus Albertz, Vincent Durussel, Tianjiang Li, Gaurav Dutta, Xin Cheng, Oscar Perez, Markos Sourial, Aurora Rodriguez Castelan
International Meeting for Applied Geoscience and Energy (IMAGE)
... near salt flanks. However, due to the nonlinear least-squares approach embedded within FWI and the enhancement in bandwidth achieved during the FWI...
2024
Role of Organic Species Dissolved in Formation Waters from Sedimentary Basins in Mineral Diagenesis
Yousif K. Kharaka, Leroy M. Law, William W. Carothers, Donald F. Goerlitz
Special Publications of SEPM
...). The boundary of Zone 3, where no acid anions are present, is placed at about 200" C and is obtained by extrapolation of the least-squares line of Figure 1...
1986
Elastic full-waveform inversion at regional scale for the northern Gulf of Mexico
Yao Yu, Anastasia Pavlovskaya, Kim Shoemaker, Hongyan Li, Jennifer Qin, David Derharoutian Jr., John Law, Zhao Ge, Ruth Hammans, Vivian Robertson, Kate Glaccum
International Meeting for Applied Geoscience and Energy (IMAGE)
... FWI uses the full wavefield and a non-linear, least squares iterative process, its illumination recovery in the subsalt can be greater than one...
2024
Analysis of the influence of bedding-parallel cracks on shale anisotropy based on stress-induced rock physics model
Ying Xu, Feng Zhang, Guohua Niu, Xiangyang Li
International Meeting for Applied Geoscience and Energy (IMAGE)
...’s theory. The Levenberg-Marquardt least squares algorithm to optimize each elastic stiffness 0 coefficients Cij of the crack-free background...
2024
Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia
Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
... with least-squares reverse time migration: Interpretation, Vol. 5, No. 3. Zhou, H., Gray, S.H., Young, J., Pham, D. and Zhang, Y., 2003, Tomographic...
2018
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... robust against cycle-skipping than conventional least-squares FWI (Wang et al., 2019). The flow proposed for this case study is shown in Figure 5...
2023
210Pb and 137CS Geochronology of the Lake Fausse Pointe Region of the Lower Atchafalaya Basin
Luke J. Patterson, Zahid Muhammad, Samuel J. Bentley, L. Del Britsch, Douglas L. Dillon
GCAGS Transactions
... be estimated by a least-squares fit End_Page 669------------------------ to: (1) where ? = decay constant for the radionuclide of interest...
2003
Broad bandwidths reveal double the expected sediment depth in the Northern Carnarvon Basin
Jo Firth, Mark Stanley
Petroleum Exploration Society of Australia (PESA)
... are also addressed, although this technique is not so effective for shallow water bottom multiples, near offsets and outer cables. Least-squares...
2016
The Sequence and Mechanism of Low-Temperature Dolomite Formation: Calcian Dolomites in a Pennsylvanian Echinoderm
David F. Blake, Donald R. Peacor, Bruce H. Wilkinson
Journal of Sedimentary Research (SEPM)
... for the phases by least squares refinement using 11 of the most intense diffraction peaks for each phase. Refined a and c values for the phases were...
1982
Carbon Isotope Composition of Natural Methane Occurrences: GEOLOGICAL NOTES
William M. Sackett
AAPG Bulletin
... in Oklahoma, and the highly carbonaceous, Jurassic, Posedonian shale from Germany were pyrolyzed at 500°C. The data and the least squares determined...
1968
Abstract: Petroleum Systems and Quantitative Oil Chemometric Models for Heavy Oils in Alberta and Saskatchewan to Characterize Oil-Source Correlations; #90174 (2014)
M. Fay, S. Larter, B. Bennett, L. Snowdon, and M. Fowler
Search and Discovery.com
..., alternating least squares (ALS) quantitative oil compositional models are used to calculate theoretical oil-source rock mixing ratios in the region...
2014
Overpressure and Hydrocarbon Accumulations in Tertiary Strata, Gulf Coast of Louisiana; #41000 (2012)
Philip H. Nelson
Search and Discovery.com
... the number of values in wells with numerous mud weight values, reducing the bias of over-reported wells. Pressure gradients were determined by least-squares...
2012
Spatial and stratigraphic variation of marine paleoenvironments in the upper Miocene Gatun Formation, Isthmus of Panama
Austin J.W. Hendy
PALAIOS
...) Scatter plot of 48 species with DCA 1 scores graphed against mean bathymetry. An ordinary least-squares algorithm was used to establish correlation...
2013
Front Matter, Abstracts: West Texas Geological Society: Resource Plays in the Permian Basin: Resource to Reserves
Michael A. Raines
West Texas Geological Society
... traditional discriminant analysis, linear regression, non-linear regression or any type of algorithm which attempts to minimize a least squares equation...
2006
Redox dynamics and metal cycling in the carbonate-buffered sediment–water interface of the ferruginous and sulfatic Lake Medard, Czech Republic
Daniel A. Petrash, Astolfo Valero, Karelys Umbría-Salinas, Christophe Thomazo, Travis B. Meador, František Laufek, James J. Valdés, Vladislav Chrastný, Kurt O. Konhauser
Journal of Sedimentary Research (SEPM)
... XRF maps (not shown). Spectra from samples were fitted with linear combinations of component spectra using a non linear least-squares algorithm...
2025
Illite/Smectite Formation and Potassium Mass Transfer During Burial Diagenesis of Mudrocks: A Study from the Texas Gulf Coast Paleocene-Eocene
D. N. Awwiller
Journal of Sedimentary Research (SEPM)
.... Expandability of I/S was estimated using the method of Reynolds and Hower (1970). The mineral abundances estimated by XRD are probably not accurate...
1993
Establishing a Regional Geologic Framework for Carbon Dioxide Sequestration Planning: A Case Study
Erik R. Venteris, Ronald R. Riley, James McDonald, Lawrence H. Wickstrom, James A. Drahovzal, John A. Harper
AAPG Special Volumes
... calculation, a variety of sources were used to obtain a solution for equation 2. Salinity was modeled using a least-squares relationship between measured...
2009
Textural and Compositional Variability Across Littoral Segments of Lake Tanganyika: The Effect of Asymmetric Basin Structure on Sedimentation in Large Rift Lakes
Michael J. Soreghan , Andrew S. Cohen
AAPG Bulletin
... by site. Regression equations are listed in the key for each site calculated by least-squares method. mgs = mean grain size; wd = water depth. Note...
1996
I would rather be vaguely right than precisely wrong: A new approach to decision making in the petroleum exploration and production industry
Reidar B. Bratvold, Steve H. Begg
AAPG Bulletin
... p.Longstaff, F. A., and E. S. Schwartz, 2001, Valuing American options by simulation: A simple least-squares approach: Review of Financial Studies, v. 14...
2008
Applying carbon-isotope stratigraphy using well cuttings for high-resolution chemostratigraphic correlation of the subsurface
J. Garrecht Metzger, David A. Fike, and L. B. Smith
AAPG Bulletin
... core C1. refers to linear least-squares fit. * = one outlier (arrow) omitted from regression calculation.Another interval of possible isotopic...
2014
Substrate-Slope and Temperature Controls on Carbonate Ramps: Revelations from Upper Miocene Outcrops, Se Spain
Evan K. Franseen, Robert H. Goldstein, Mark R. Farr
Special Publications of SEPM
...- 341. KIRSCHVINK J L 1980 The least squares line and plane and the analysis of KJRSCHVINK, J. L., 1980, The least-squares line and plane...
1997
A Critique of the Magnolia Field (Columbia County) Case History
E. E. Rosaire , James M. Forgotson
GCAGS Transactions
..., such points fall on a scatter diagram, rather than a straight line, and least squares can be used to determine the relationship Del = a + b Dr Where Del...
1953
No large bias within species between the reconstructed areas of complete and fragmented fossil leaves
Eric R. Hagen, Dana L. Royer, Ryan A. Moye, Kirk R. Johnson
PALAIOS
...-variables, unlike ordinary least-squares regression that only incorporates uncertainty in the dependent variable. SMA is appropriate when...
2019