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The AAPG/Datapages Combined Publications Database
Showing 168 Results. Searched 200,357 documents.
Derivation of Seismic Depth Sections
H. Buchholtz, W. Houba
Geological Society of Malaysia (GSM)
... and converted them to depth by using wave front charts and Snell's law. This type of horizon migration has become an important tool still nowadays taking...
1987
Full-waveform inversion and FWI imaging for land data
James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
... robust overcoming the poor S/N ratio challenges typical of land acquisitions. The FWI reflectivity image is calculated by a Snell’s lawbased approach...
2022
ASSESSING THE EFFECTS OF ANTHROPOGENIC EUTROPHICATION ON MARINE BIVALVE LIFE HISTORY IN THE NORTHERN GULF OF MEXICO
PAUL G. HARNIK, MORGAN L. TORSTENSON, MARIO A. WILLIAMS
PALAIOS
... have the life history traits of organisms in eutrophic environments changed (Snell-Rood et al. 2015)? Has anthropogenic nutrient-enrichment weakened...
2017
Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra
Iswani Waryono, Wahyu Triyoso
Indonesian Petroleum Association
... the observation point and the normal incidence point (normal ray), and only primary events are taken into account. The central ray satisfies Snell’s law...
2012
Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration
Tim Geerits, Stefan Schimschal, Anna Swiatek
International Meeting for Applied Geoscience and Energy (IMAGE)
... the borehole fluid slowness ( S f ). To underpin this belief, one typically refers to Snell’s law which (only) gives a specialized ray-theoretical...
2022
Our Favorite Outcrop: The Striking But Enigmatic Granite-Gabbro Contact Of The Wichita Mountains Igneous Province
M. Charles Gilbert, John P. Hogan
Oklahoma City Geological Society
... southeast, of the Hollis Canyon area in the westernmost Wichita Mountains Wildlife Refuge and on Snell Ranch. The granite-gabbro contact is the distinct...
2010
Gated based quantum computer algorithm for geophysical inversion
Jorge E. Monsegny, Daniel Trad, Don C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... the classical one because there is no need to compute gradients or Hessians. Only forward modelling and residual calculation are needed, and this simplifies...
2023
Determination of Depth Models Through Self-Consistent Structural Modeling to Help Delineate Hydrocarbon Traps in the Uinta Basin
Alvin K. Benson
Utah Geological Association
... obeying Snell’s law are followed through the model to the surface, keeping track of the time it takes to go from bottom to top (Clay, 1990). Reliable...
1992
Analysis of the fluvial stratigraphic response to the Paleocene–Eocene Thermal Maximum in the Bighorn Basin, U.S.A.
Amanda Owen, Adrian J. Hartley, Trevor B. Hoey, Alena Ebinghaus, David W. Jolley, Gary S. Weissmann
Journal of Sedimentary Research (SEPM)
..., M., Poloczanska, E.S., Mintenbeck, K., Alegría, A., Craig, M., Langsdorf, S., Löschke, S., Möller, V., Okem, A., and Rama, B., eds...
2023
Delaware Basin Horizontal Wolfcamp Case History: HTI Fracture Analysis to Avoid H2S and Extraneous Water Linked to Graben Features
Scott Cook, Mike McKee, Sid Bjorlie
Unconventional Resources Technology Conference (URTEC)
.... Snell’s law tells us that rays will bend to spend the least amount of time possible inside the graben, so even rays non-perpendicular to the graben...
2019
Developments in Rocky Mountain Region in 1942
R. M. Larsen
AAPG Bulletin
... S., R. 49 W., drilled mostly in 1941, was abandoned at 4,819 feet in the Marmaton formation (Pennsylvanian). The Stanolind Oil and Gas Company's Snell...
1943
I. Relation of Structural Section to Seismic Section
Robert E. Sheriff
AAPG Special Volumes
... a reflector passes right through it. Travel paths which pass through interfaces where the velocity changes are bent according to Snell's law:
1981
III. Evidence of Faulting
Robert E. Sheriff
AAPG Special Volumes
... plane; that is, it juxtaposes different velocities. Therefore, raypaths passing through the fault plane are bent according to Snell's law by the change...
1981
Study on Characteristic Variability of Weak Signal in High Density Seismic Acquisition; #41351 (2014)
Wujin Chen and Anchu Wu
Search and Discovery.com
... to Snell law. (2) (3) Where Rpp is the reflection coefficient, Tpp is the transmission coefficient, ρ1 is the first layer density, ρ2 is the second layer...
2014
Angle Gathers for Gaussian Beam Depth Migration, #41593 (2015).
Samuel Gray
Search and Discovery.com
... by surface incidence or emergence angle, i.e., the angle at the source or receiver location that corresponds by Snell’s law to the subsurface incidence angle...
2015
Combined P and S Waves Survey for Hydrocarbon Exploration
Basuki Puspoputro
Indonesian Petroleum Association
... the generalized forms of Snell's law still hold as far as the directions of the different waves are concerned (see Figure 1): Figure 1. Partition of energy...
1990
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
... gradient medium that isn’t always the best representation of Earth’s subsurface (Levin, 1996). As such, refraction theory governed by Snell’s Law...
2022
Vail's Coastal Onlap Curves and Their Correlation with Tectonic Events, Offshore Eastern Canada: Chapter 18: North American Margins
S. Cloetingh, A. J. Tankard, H. J. Welsink, W. A. M. Jenkins
AAPG Special Volumes
... time: an emerging geophysical problem: American Geophysical Union Geodynamics Series, v. 15, p. 61-74. Sleep, N.H., and N.S. Snell, 1976, Thermal...
1989
Burial History and Diagenetic Reaction Kinetics
Raymond Siever
AAPG Bulletin
... borderlands: Canadian Society of Petroleum Geologists Memoir 7, p. 95-117. Sleep, N. H., and N. S. Snell, 1976, Thermal contraction and flexure of Mid...
1983
Multi-Taxa Isotopic Investigation of Paleohydrology In the Lower Cretaceous Cedar Mountain Formation, Eastern Utah, U.S.A.: Deciphering Effects Of the Nevadaplano Plateau On Regional Climate
Celina A. Suarez,, Luis A. González, Gregory A. Ludvigson, James I. Kirkland, Richard L. Cifelli, Matthew J. Kohn
Journal of Sedimentary Research (SEPM)
... isotope compositions of fossils: Reviews in Mineralogy and Geochemistry, v. 66, p. 119– 154. Kohn, M.J., and Law, M.J., 2006, Stable isotope chemistry...
2014
Vertical-to-Lateral Transitions Among Cretaceous Carbonate Facies—A Means to 3-D Framework Construction Via Markov Analysis
Sam Purkis, Brigitte Vlaswinkel, Nuno Gracias
Journal of Sedimentary Research (SEPM)
... undersampled with respect to the vertical. However, through the principle of Walther’s Law (Walther 1894) or due to the geometry of basinward-inclined...
2012
Structural and Stratigraphic Evolution of the Campos Basin, Offshore Brazil: Chapter 38: Analogs
W. U. Mohriak, M. R. Mello, G. D. Karner, J. F. Dewey, J. R. Maxwell
AAPG Special Volumes
...: Geophysical Journal of the Royal Astronomical Society, v. 24, p. 325-350. Sleep, N.H., and N.S. Snell, 1976, Thermal contraction and flexure of Mid...
1989
A Comparison of Air Photograph and Computer Simulated Wave Refraction Patterns in the Nearshore Area, Richibucto, Canada and Jervis Bay, Australia
Edward A. Bryant
Atlantic Geology
... also assume that wave refraction obeys Snell's law, that diffraction and reflection are minimal, that wave period is a constant both in time and space...
1974
Integracion y Evaluacion en las Cuencas Sedimentarias de la Peninsula de Baja California. IN SPANISH. Integration And Evaluation In The Sedimentary Basins Of The Baja California Peninsula.
Salvador Alvarado De La Tejera
Boletín de la Asociación Mexicana de Geólogos Petroleros (AMGP)
..., aún se plantean interrogantes dado que nuestro conocimiento del subsuelo es reducido y local. La experiencia obtenida en el desarrollo de estos trabajos...
1977
Seismic Signature as a Porosity Indicator in Early Miocene Reefs in the Madura Strait Via AVO Inversion and Modelling
Bimal R. Banerjee
Indonesian Petroleum Association
... and 30 degrees angles of incidence. The ray path of each angle started at 2440 m and from this depth all rays follow Snell's law. Fig.14, 15 & 16 show...
1993