Welcome to the new Datapages Archives
Datapages has redesigned the Archives with new features. You can search from the home page or browse content from over 40 publishers and societies. Non-subscribers may now view abstracts on all items before purchasing full text. Please continue to send us your feedback at emailaddress.
AAPG Members: Your membership includes full access to the online archive of the AAPG Bulletin. Please login at Members Only. Access to full text from other collections requires a subscription or pay-per-view document purchase.
Welcome to the new Datapages Archives
Search Results > New Search > Revise Search
The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
ReGenerating the Gippsland Basin
J. Firth, K. Zhao, S. Birdus, N. Mudge, J. Zhou
Petroleum Exploration Society of Australia (PESA)
... inversion (FWI) and least-squares Q pre-stack depth migration (LSQPSDM), are essential to stabilize AVO inversion and to improve the understanding...
2018
New Joint Categorical/Continuous Simultaneous Inversion Technology (Paper C9)
M. Kemper
Geological Society of Malaysia (GSM)
... the synthetic seismic Spp(θ) so obtained with the real seismic Sreal(θ). Use some optimization apparatus (e.g. the conjugate gradient method, or least squares...
2012
Settling Velocities of Natural Sand Grains in Air
Bingquan Cui, Paul D. Komar, Jumpei Baba
Journal of Sedimentary Research (SEPM)
... by simple least-squares linear regression of the logs of the values of the measured settling rates, Wm, versus the expected rate ws for a sphere having...
1983
Profiler-Sonobuoy Measurements in Colombia and Venezuela Basins, Caribbean Sea
William J. Ludwig , Robert E. Houtz , John I. Ewing
AAPG Bulletin
... in Figure 3. A plot of sediment-interval velocities versus one-way reflection time in the sediments appears in Figure 4 together with the least-squares...
1975
Compaction Curves
Brewster Baldwin , Crispin O. Butler
AAPG Bulletin
... and Halley (1982) show data with a scatter of some 20% at any given depth. They present a least-squares exponential fit. Their curve (Figure 4, curve S-H...
1985
Geothermal gradient and temperature of hydrogen sulfide-bearing reservoirs, Alabama continental shelf
Seiichi Nagihara, Michael A. Smith
AAPG Bulletin
... line is the linear, least-squares fit to the plot. Depth ranges of the H2S-bearing James and the Norphlet reservoirs are also indicated.For the data...
2005
Abstract: Inexact Full Newton Method for Full Waveform Inversion Using Simultaneous Encoded Sources; #90187 (2014)
Amsalu Y. Anagaw and Mauricio D. Sacchi
Search and Discovery.com
... techniques. Here, we adopt the conjugate gradient least-squares (CGLS) method to solve equation [8]. The CGLS scheme requires only the action of the Hessian...
2014
NW Shelf Digital Atlas A Tool for Regional Exploration
Adam Smith, Huw Edwards, Daryl Gould, Shane Westlake
Indonesian Petroleum Association
... this limitation, a combination of computer and manual interpretation incorporating additional well control was applied in those cases. A least squares...
2007
Correlation and Age of the Upper Jurassic Morrison Formation from Magnetostratigraphic Analysis
M. B. Steiner, S. G. Lucas, E. M. Shoemaker
Rocky Mountain Section (SEPM)
... 1062, p. 90 and 95. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data: Geophys. J., 62, p. 699–718...
1994
A Compensated Spectral Natural Gamma Ray* Logging System
C. Kessler, R. Washa, G. S. Yarbro
Indonesian Petroleum Association
... to be detected, which permits additional measurements of formation lithology in open holes and casing thickness in cased wells. The least squares calculation...
1984
MB Field Reservoir Simulation Study
Dodi Hidayat
Indonesian Petroleum Association
... 9. Figure 8. Sidewall Core Analysis Figure 9. Porosity versus Permeability (test) The least-squares regression fit of these data is: where...
1991
Simultaneous inversion of velocity and angle-dependent reflectivity
Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai
International Meeting for Applied Geoscience and Energy (IMAGE)
... reflectivity reflectivity, equivalent to a non-linear least-squares RTM, is shown in Figure 2B. Importantly, the angle gathers (Figure 2C) were...
2023
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