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The AAPG/Datapages Combined Publications Database
Showing 1,444 Results. Searched 200,357 documents.
Interpretive Seismic Modeling in Anadarko Basin: ABSTRACT
James Patrick McMahon
AAPG Bulletin
..., and other geologic information. After the subsurface structures were defined, depth and velocity plots were produced. Normal incidence rays were...
1984
Abstract: Timing, Emplacement, and Distribution of Mare-Fill Units in Oceanus Procellarum, a Large Nearside Lunar Basin, by William A. Ambrose; #90082 (2008)
Search and Discovery.com
2008
ABSTRACT: Subsalt Imaging: beyond depth migration and model building; #90051 (2006)
Biondo Biondi
Search and Discovery.com
... conventional raybased tomography fails. This method bypasses the difficulties involved in tracing high-frequency rays through a complex salt body...
Unknown
Abstract: Prestack Gaussian-Beam Depth Migration in Anisotropic Media; #90211 (2015)
Tianfei Zhu, Sam Gray, and Daoliu Wang
Search and Discovery.com
... efficiency and its capability of imaging steep dips with turning rays. By directionally downward extrapolating local plane waves instead of single-trace...
2015
Seismic Depth Interpretation in Thrustbelts, by Nancy House, #40131 (2004).
Search and Discovery.com
2004
Fault Shadow Correction Methodology
P. Julien, J. L. Broyer, O. Bernet-Rollande
Indonesian Petroleum Association
.... These "pushdown" effects can be observed on seismic time images beneath dipping extensional faults, and are due to seismic rays that first travel through...
2000
Basic Open Hole Tools: Part 4. Wireline Methods
Mark W. Alberty
AAPG Special Volumes
... use of three different physical phenomena: spontaneous potential, gamma rays, and photoelectric effect. Table 2 shows the resolution and applications...
1992
Finite Difference Modelling: Part IV
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... lines or rays. Those who have read the book Introduction to Exploration French mathematician Pierre de Fermat (1601–1665) is often called the founder...
2019
Determination of the Physical Parameters of Oil-Bearing Rocks for Calculation of Oil Reserves in Deposits According to Electrometric and Radiometric Data
F. I. Katyakhov
Petroleum Geology: A Digest of Russian Literature
..., Absorption of gamma rays by sedimentary rocks, Prikladnaya Geofizika, vyp. 15, Gostoptekhizdat. 4. Kotyakhov, F. I., Mel’nikova, Yu. S., Kazakova...
1958
A Compensated Spectral Natural Gamma Ray* Logging System
C. Kessler, R. Washa, G. S. Yarbro
Indonesian Petroleum Association
...), uranium (U) and thorium (Th) elemental concentrations. A low atomic number tool case allows gamma rays in the photo-electric energy region...
1984
Ooids from Great Salt Lake, Utah, as an Analogue for the Genesis and Diagenesis of Ooids in Marine Limestones
Charles F. Kahle
Journal of Sedimentary Research (SEPM)
... undergone recrystallization (Fig. 3A, B) are typically made up of what Eardley (1938) termed rays or radial rays or radiate structures and which he...
1974
Abstract: Regular Grids Travel Time Calculation A Practical Huygens Wavefront Expansion Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... of this method is that, at each time step, rays with different ray parameters are traced and a new wavefront is constructed by connecting the end points...
2014
Dual-Detector Lithology Measurements with a New Spectral Density Log
W. E. Schultz, A. Nunley, J. G. Kampfer, H. D. Smith Jr., Verdun E. Rahal Jr.
Indonesian Petroleum Association
... limited penetration of the photoelectrically sensitive low energy gamma rays. Conversely, the larger collimator opening of the long-spaced detector...
1985
Occurrence of Fossil Woods in Texas, Primarily the Cretaceous and Tertiary
Scott W. Singleton
GCAGS Transactions
... and thick rays is present during the wet early Eocene thermal maximum. This assemblage changes distinctly by the mid-Eocene but only minor differences...
2017
3D density imaging of cosmic-ray muography with adjustable angular resolutions
Chenyan Wu, Dikun Yang, Zhongchang Chen, Ke Wang, Tao Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... of muon rays for detection, so detectors can be placed at the foot of mountains and no fieldwork over rough topography is necessary. These advantages make...
2022
Thermoluminescence and Surface Correlation of Limestones
Donald F. Saunders
AAPG Bulletin
.... It can also be induced artificially by irradiating specimens with gamma rays or X-rays. The natural thermoluminescence has been produced...
1953
Fault Interpretation Problems in the Southeast Barrow Sub-Basin
R. K. Whyte
Petroleum Exploration Society of Australia (PESA)
..., upthrown side of the velocity window and direct arrivals through the low velocity, downthrown side, but the rays in between are refracted so that they end...
1994
Application of X-ray Methods to the Investigation of Recent Sediments: Part 7. Methods of Study
Martin Mehmel
AAPG Special Volumes
... are founded upon the basic work of Max von Laue (2) in 1912. According to him, X-rays produced distinctive End_Page 616...
1939
Crosswell Seismic: Review of Field Operations, Survey Planning and Case History
Jeff Meyer, Randy Evans, Robert Martin, Cynthia L. Welch
West Texas Geological Society
... is an illustration of what a crosswell objective might look like. The lines drawn between the source well and the receiver well are “rays” or concentrations...
2002
Forward Modeling to Improve Seismic Acquisition Design
Paula A.C. Barbosa, Jose A. Jaramillo, Jose H. Olaya
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... reflection points and common depth points. Also, it proved that the concentration of rays in certain zones causes positive anomalies in reflection...
2006
Eunice Foote's Pioneering Research On CO2 And Climate Warming; #70092 (2011)
Raymond P. Sorenson
Search and Discovery.com
.... Foote had determined, first, that the action of the rays increases with the density of the air. She has taken two glass cylinders of the same size...
2011
FEEDING TRACES OF RECENT RAY FISH AND OCCURRENCES OF THE TRACE FOSSIL PISCICHNUS WAITEMATA FROM THE PLIOCENE OF SANTA MARIA ISLAND, AZORES (NORTHEAST ATLANTIC)
ALFRED UCHMAN, PAULO TORRES, MARKES E. JOHNSON, BJÖRN BERNING, RICARDO S. RAMALHO, ANA CRISTINA REBELO, CARLOS S. MELO, LARA BAPTISTA, PATRÍCIA MADEIRA, RICARDO CORDEIRO, SÉRGIO P. ÁVILA
PALAIOS
... the link between paleo- and neoichnology. number of teeth found at these outcrops, the absence of evidence for rays puzzled these authors. PLIOCENE...
2018
Using X-Ray Fluorescence to Quantify Clay Content in Mudrock and Sandstone Outcrops, #41773 (2016).
Alton A Brown, Russell K. Davies
Search and Discovery.com
... undetectable by field XRF units. Sodium and magnesium x rays are so heavily attenuated by air as to be unreliable and typically undetectable. Aluminum...
2016
A Non-Destructive Core Analysis Technique Using X-Rays
Seymour R. Baker, Gerald M. Friedman
Journal of Sedimentary Research (SEPM)
...A Non-Destructive Core Analysis Technique Using X-Rays Seymour R. Baker, Gerald M. Friedman 1969 Vol. 39 No. 4. (December), An X-ray technique has...
1969
Derivation of Seismic Depth Sections
H. Buchholtz, W. Houba
Geological Society of Malaysia (GSM)
... of dipping overburden layers. Substantiallatera1 velocity variation already falsifies the result of time migration as refraction of rays is normally...
1987