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The AAPG/Datapages Combined Publications Database

Showing 168 Results. Searched 200,691 documents.

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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

The Relation of Uranium Occurrences to Groundwater Flow Systems

J. Ladd Hagmaier

Earth Science Bulletin (WGA)

... permeability according to a relationship similar to Snell’s law for light refraction: Figure 1. Generalized flow system model. { sin   θ...

1971

Chapter 6: Seismic Modeling

Tom Wittick

North Texas Geological Society

... in velocity in the subsurface the raypaths are bent according to Snell’s law so we get the curved raypath. There are two types of ray trace modeling...

1992

Horizontal stress inversion based on azimuthal difference in P-wave reflectivity

Fubin Chen, Zhaoyun Zong, Xingyao Yin

International Meeting for Applied Geoscience and Energy (IMAGE)

... vectors, respectively. r0 is the point on the interface across two stressed HTI media obeying the Snell’s law. The expressions of I , J ,  and  IJ...

2022

Seismic Modeling

Abilene Geological Society

... the raypaths are bent according to Snell's law so we get the curved raypath. There are two types of ray trace modeling, normal incidence and offset ray...

1993

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

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

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

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: sine...

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

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)

... and Planetary Sciences, v . 39, p . 489– 516. Middleton, G.V., 1973, Johannes Walther's Law of the Correlation of Facies: Geological Society...

2023

Kiowa and Prowers County, Colorado

Richard S. Buchanan

Kansas Geological Society

.... Continental Oil Co. 8. Superior Oil Company Weisenberger 9. Stanolind Oil &t Gas Co. Snell III 7-20S-41W SE SW 10. Texa. Pacific Coal &t Iron...

1956

The Next 100 Years of Global Energy: Part IV The Global Power Fuel Mix and Carbon Transition; #70271 (2017)

Mark A. Snell

Search and Discovery.com

...The Next 100 Years of Global Energy: Part IV The Global Power Fuel Mix and Carbon Transition; #70271 (2017) Mark A. Snell The Next 100 Years...

2017

North Louisiana: Early Gas Development and History of Conservation Laws

A. A. Meyerhoff , James M. Forgotson, Sr.

AAPG Special Volumes

.... of Conservation, p. 165-210. Moosa, R. Nolan, and Saloom, Jr., Kaliste J., 1942, The oil and gas conservation movement in Louisiana: Tulane Law...

1968

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

Uranium-Vanadium Deposits on the West Flank of the La Sal Mountains, Grand and San Juan Counties, Utah

William L. Chenoweth

Grand Junction Geological Society

...-prospector named Charles Snell came to him in the spring of 1915 with the story of a dream in which he saw a yellow circle on a block of sandstone...

1983

Modelado Sismico Tridimensional Mediante Teoria de Rayos [PAPER IN SPANISH] Three-Dimensional Seismic Modeling Using Ray Theory

G. GarcÍa

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Modelado Sismico Tridimensional. Haciendo uso extensivo de la Ley de Snell, se manejan las ecuaciones para trazar rayos en modelos geologicos...

1988

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

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

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

... was based on the stacking velocity at the well location and Snell's Law; the other was based on the computed incident angle at each offset from...

1994

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