Click to minimize content

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.

Click to maximize content

Welcome to the new Datapages Archives

Search Results   > New Search > Revise Search

The AAPG/Datapages Combined Publications Database

Showing 35 Results. Searched 191,921 documents.

1   2   Next >

Ascending

Fermat’s Principle Raypaths in 3D Anisotropic Media

Bill Vetter

CSPG Special Publications

...Fermat’s Principle Raypaths in 3D Anisotropic Media Bill Vetter 1998 23 24...

1998

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... of reflection and refraction of light can be based on a theory known as geometric optics or ‘ray theory’, where light waves are represented with simple geometric...

2019

The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration

J. E. Stones

Oklahoma City Geological Society

..., which is an outgrowth of Fermat's Principle, relates the reflection and/or refraction of a ray impinging on a discontinuity to the velocity contrast...

1958

Abstract: Regime Rays: Visualizing the Fermat/Snell Loci in Homogeneous Anisotropic Media; #90171 (2013)

William J. Vetter

Search and Discovery.com

... wavelength/compositesrepetition-thickness ratio (e.g. Macbeth 2002). I suggest that Fermat’s principle and Snell’s law should apply in such composites...

2013

Critical Analysis of Stack Seismic Systems

L. E. Nugent, Jr.

AAPG Bulletin

... of Huygen and Fermat concerning wave advancement and minimum time paths, and Snell's law on refraction and reflection. Figure 2 has the same field...

1967

Chart Migrations

Frank A. Roberts

Oklahoma City Geological Society

..., depth and offset of reflecting horizons. The construction of the graph must include: Fermat's fundamental principle of seismology which is that a wave...

1958

The Limitations of Seismic Modelling of Geological Structures

B. L. N. Kennett

Petroleum Exploration Society of Australia (PESA)

...) and extended to elastic waves by Kennett (1984a). Such a procedure allows, in principle, a complete treatment of reflection and transmission...

1985

Limitations of Reflection Seismograph

L. E. Nugent, Jr.

AAPG Bulletin

...Limitations of Reflection Seismograph L. E. Nugent, Jr. 1953 2513 2529 37 11. (November) Factors determining the precision of data procured...

1953

Application of finite difference eikonal solver for traveltime computation in forward modeling and migration

Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff

Geological Society of Malaysia (GSM)

... of the wave traveling like a ray through the shortest path (Fermat’s principle) in the model and change direction when encountering velocity and density...

2021

Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... reflection seismic to borehole seismic. Furthermore, the response produces all physically possible wave types, providing a more intuitive than...

2009

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

... channels (c.f. Cerveny 2001 p.28-30, p.103). They are (1) not traveltimes minimizing Fermat’s principle loci, (2) not pointwise Snell’s law conforming...

Unknown

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

... channels (c.f. Cerveny 2001 p.28-30, p.103). They are (1) not traveltimes minimizing Fermat’s principle loci, (2) not pointwise Snell’s law conforming...

Unknown

Dip and Azimuth Determination in 3D CRS-Stack

A. Hendriyana, M. Jaya, R. Sule, A.D. Guntara

Indonesian Petroleum Association

... properties along the raypath between source and receiver according to Fermat’s principle in ray theory. In contrast, CRS stacking operation...

2013

Abstract: Predicting Free Surface Multiples without the Water: SRME on Land; #90224 (2015)

Keith Wilkinson, Richard Bale, and Ken Gray

Search and Discovery.com

... is applied, and Fermat’s principle (stationary phase) results in the true DRP being reconstructed. The set of traces which constitute cross-convolved...

2015

Flow Simulation of Complex Fracture Systems With Unstructured Grids Using the Fast Marching Method

Changdong Yang, Xu Xue, Michael J. King, Akhil Datta-Gupta

Unconventional Resources Technology Conference (URTEC)

... grids with two types of discretization, which are based on Fermat’s principle and Eulerian discretization. The accuracy and convergence...

2017

Technological Revolution in Petroleum Exploration: Chapter 11

Edgar Wesley Owen, C. V. Millikan

AAPG Special Volumes

..., liquids, or gases is Fermat's principle. This states that the waves follow a path which makes their travel time between two points a minimum...

1975

Chapter 10: Earthquake, Tomographic, Seismic Reflection, and Gravity Evidence for a Shallowly Dipping Subduction Zone beneath the Caribbean Margin of Northwestern Colombia

Rocio Bernal-Olaya, Paul Mann, Carlos A. Vargas

AAPG Special Volumes

.... Edgar, N. T., J. I. Ewing, and J. Hennion, 1971, Seismic refraction and reflection in Caribbean Sea: AAPG Bulletin, v. 55, p. 833–870. Ewing, J., J...

2015

High Resolution Diffraction Imaging of Small Scale Fractures in Shale and Carbonate Reservoirs

Alexander M. Popovici, Ioan Sturzu, Tijmen J. Moser

Unconventional Resources Technology Conference (URTEC)

... events, because the part of reflected energy, which falls outside the Fresnel zone, does not follow the shortest reflection path according to Fermat...

2015

Abstracts: Synthetic Microseismic Files; #90173 (2015)

J. Wong, P. M. Manning, L. Han, and J. B. Bancroft

Search and Discovery.com

... location using nonlinear optimization: CREWES Research Report, 21, 73.1-73.14. Wong, J., 2010. Fermat’s principle and ray tracing through anisotropic...

2015

Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data

A. A. Tabakov, V.N.Ferentsi, H. Gravini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...) and velocity model of media in a vicinity Ω are known. From Fermat’s principle follows, that the ray is propagated from source point S to receiver point M...

2006

Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data

Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto

Indonesian Petroleum Association

.... Basic legal principles include Snellius’s Law, Huygens’s Principle, and Fermat’s Principle (Shearer, 2009). * ** Bolt (1976), mechanical waves...

2019

Chapter 14: Gravity, Seismic Reflection, and Tomographic Constraints on the Subduction-to-Strike-Slip Transition at the Southeastern Caribbean Plate Boundary Zone

Tricia G. Alvarez, Paul Mann, Carlos A. Vargas, Lesli J. Wood

AAPG Special Volumes

... using Fermat’s principle of traveltime minimization. The path with minimal traveltime is defined in a series of steps, which progressively deforms...

2021

1   2   Next >