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The AAPG/Datapages Combined Publications Database
Showing 19 Results. Searched 195,372 documents.
ABSTRACT: Time Extrapolation of the Double-Square-Root Equation: Prestack Exploding Reflector Modeling and Migration, by Alkhalifah, Tariq A.; Fomel, Sergey; #90141 (2012)
Search and Discovery.com
2012
ABSTRACT: Improved Seismic Imaging Methods for More Accurate Interpretation and Attributes, by Peter Whiting, Carl Notfors, and Geoff Mansfield; #90913(2000).
Search and Discovery.com
2000
Abstract: How to Attenuate Diffracted Noise: (DSCAN) A New Methodology; #90211 (2015)
Ali Karagul, Todd Mojesky, XinXiang Li, and Necati Gulunay
Search and Discovery.com
... for attenuating diffracted energy from shallow water inhomogeneities that are harmful to marine surveys. The method uses the double square root travel time equation...
2015
Abstract: A Comparison of Standard Migration with EOM for Hussar Data; #90174 (2014)
Thais A. Guirigay, John C. Bancroft, and J. Helen Isaac
Search and Discovery.com
... or two-way, travel time can be computed from: , (2) The equation (2) is known as the double square root (DSR) equation and defines the traveltime...
2014
Abstract: Simultaneous P-P and P-S Waveform Inversion Algorithm Using Pre-Stack Time Imaging Method ; #90187 (2014)
Hassan Khaniani, John C. Bancroft, and Eric von Lunen
Search and Discovery.com
... intercept time using Double Square Root (DSR) equation and the result of Zoeppritz solvers (Aki and Richards, 1980) from the scatter point to produce...
2014
Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)
Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen
Search and Discovery.com
... In the general case where the velocity inside the Earth is varying smoothly, the Double Square Root (DSR) equation serves as a starting point for total...
2014
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
... separately. By extending the work of Ver West and Wilkinson (2003) to the double-square root (DSR) equation for converted-wave travel time proposed by Li...
2014
Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)
Thais A. Guirigay and John B. Bancroft
Search and Discovery.com
...-way zero-offset time and to is defined from the data. The equation (2) is known as the double square root (DSR) equation and defines the traveltime...
2015
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... through the velocity field, or solve a recursive equation, to obtain the diffraction surfaces. Algorithms that use the "double-square root" equation...
2000
Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)
Peter W. Cary, Albert Zhang
Search and Discovery.com
... CSPG/CSEG/CWLS GeoConvention 2011, Calgary, Alberta, Canada, May 9-11, 2011 square root equation of converted wave travel-time using four parameters...
2015
Abstract: Simplified Processing of Converted Wave Data; #90224 (2015)
John C. Bancroft and Thais Guirigay
Search and Discovery.com
... the double square-root equation to give the total traveltime T using T02 P hs2 T02 S hr2 2 2 T 4 4 VP VS , (2) where the T0...
2015
Delineating Thin-Bed Tight Gas Sand Reservoir with Prestack Joint PP/PS Inversion, #41363 (2014)
Zhiwen Deng, Ming Qiang, Shuanghu Shi, Xiaofeng Liang, Yang Zhu, Yijun Zhou, Qingjia Tong
Search and Discovery.com
... Shear Wave Velocity Analysis For a single isotropic horizontal layer, the following double square root equation can accurately express the converted...
2014
Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology
Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia
Indonesian Petroleum Association
... amplitude compensation. Figure 12 - Schematic representation for the computation of PS travel time with the double square root equation for a receiver...
2014
Obtaining Low Frequencies for Full Waveform Inversion by Using Augmented Physics
Eldad Haber, Eran Treister, Elliot Holtham
Petroleum Exploration Society of Australia (PESA)
..., A. and Fomel, S. [2013] First-break traveltime tomography with the double-square- root eikonal equation. Geophysics, 78(6), U89–U101. Nocedal, J...
2016
Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)
Aaron Stanton
Search and Discovery.com
... least squares migration with a Double Square Root (DSR) operator to express reflectivity as a function of subsurface position and ray parameter...
2015
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
.... For demonstration on traveltime calculation (Figure 4), the following double-square root (DSR) eikonal equation from Li et al. (2013) is used, ∂t = ˗ ∂z √ 1...
2022
The influence of data selection and type of analysis on interpretations of temporal stability in Oligocene faunas of Mississippi
Christy C. Visaggi, Linda C. Ivany
PALAIOS
... the log or fourth root (i.e., double square root) of raw abundance counts and then comparing these values using the BrayCurtis dissimilarity coefficient...
2010
GEO 2012 The 10th Middle East Geosciences Conference and Exhibition, 4-7 March 2012, Manama, Bahrain; - Abstracts, #90141 (2012).
Search and Discovery.com
2012
The stratigraphic distribution of fossils in a tropical carbonate succession: Ordovician Bighorn Dolomite, Wyoming, USA
Steven M. Holland, Mark E. Patzkowsky
PALAIOS
... square-root transformation of original abundance. Cluster analysis was based on Ward’s method with Euclidean distances, implemented by the agnes method...
2009