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The AAPG/Datapages Combined Publications Database

Showing 1,097 Results. Searched 200,357 documents.

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ABSTRACT: Azimuthal variations in PP reflection seismic: signals on in-situ stress fields &/or vertical aligned fractures

Heloise Lynn

Rocky Mountain Association of Geologists

... on in-situ stress fields &/or vertical aligned fractures The uses of the azimuthal variations in reflection signatures, traveltime, amplitude, gradient...

2006

Seismic applications of the Radon transform and a new second-order traveltime local transform

Ehsan Soleymani, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

...Seismic applications of the Radon transform and a new second-order traveltime local transform Ehsan Soleymani, Mauricio Sacchi Seismic applications...

2024

Abstract: Lab and numerical experiments of how cracks influence the nonlinear interactions of P- and S-waves

Meghdad Darijani, Mandy Sin Huay Lim, Herurisa Rusmanugroho, Alison Malcolm

Atlantic Geology

... properties of rocks. In nonlinear elastic materials, two or more seismic waves interact causing traveltime delays, changes in amplitudes and frequency...

2018

Seismic Stratigraphy and Sedimentation, Magdalena Fan, Southern Caribbean Sea: ABSTRACT

V. Kolla, R. T. Buffler, J. W. Ladd

AAPG Bulletin

... to 2.5 secs two-way traveltime). Although sediments were deposited in the Magdalena Fan since about the Late Cretaceous, terrigenous sedimentation...

1982

ABSTRACT: Depth Conversion for Stacked Reservoirs in Tertiary Clastics; #90017 (2003)

Christian Höcker

Search and Discovery.com

... in Tertiary clastics is usually addressed in a rather simplistic fashion. Functions relating 2-way traveltime to depth are used and deviation from...

2003

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

..., and then sums the appropriate energy from all available input traces. From the raypaths shown in Figure 1, the traveltime t is estimated by the adding...

2014

Abstracts: The Seismic Quest for Estimating Heavy Heavy Oil Viscosity; #90173 (2015)

Fereidoon Vasheghani, Larry R. Lines, and Joan Embleton

Search and Discovery.com

... attenuation tomography algorithm is coupled to the seismic traveltime tomography. Traveltime tomography is completed initially in order to compute the ray...

2015

Abstract: Non-First-Break Solution for Shallow Velocity Anomaly Problem; #90211 (2015)

Emil Blias

Search and Discovery.com

...-density automatic non-hyperbolic NMO picking, (ii) Analytical NMO inversion to estimate shallow velocity structure, (iii) Non-linear horizonbased traveltime...

2015

Abstract: Azimuthal Anisotropy as a Potential Fracture Diagnostic from 3D Surface Seismic Data: Example from Wildcat Hills, Alberta; #90211 (2015)

Draga Talinga and Don Lawton

Search and Discovery.com

... differing most significantly oriented at 60o and 150o. If the azimuthal traveltime variation indicates fracturing, differences in traveltimes can be further...

2015

Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)

Jie Zhang, Oz Yilmaz, and Nanxun Dai

Search and Discovery.com

... roles. For processing land data from mountainous areas, using the first-arrival traveltime tomography approach to resolve the near-surface structures...

2015

Abstract: Turning-Ray Tomography and Tomostatics; #90224 (2015)

Babatunde Arenrin, Gary Margrave, and John Bancroft

Search and Discovery.com

... seismic line. This process is commonly referred to as tomostatics. The traveltime tomography approach used in this study is similar to the constrained...

2015

Abstract: Relative Impedance Inversion of Seismic Traces by Means of Complex Trace Attributes; #90310 (2017)

Kurt Grubbe, Sean McQuaid

Search and Discovery.com

... to identify possible reservoirs. Isolated layers as thin as a few milliseconds two-way traveltime may be resolved, if the noise level of the data...

2017

Revealing the discontinuities by 3D prestack diffraction separation and imaging

Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... the homeomorphic imaging common shot point approximation, Khaidukov et al. (2004) estimated the reflection traveltime and focused reflections on the imaginary...

2022

Streamlining subsurface insights: Single extrapolation for holistic Green's function generation

Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... traveltime to construct a traveltime table, and subsequently generating ODCIGs using Kirchhoff PSDM (Pu et al., 2021; Jin et al., 2023). However...

2024

Imaging Complex Structures in Colombia … Full Wave Equation Migration Approach

Hector A. Alfonso, Luis E. Rojas, Weizhong Wang, Jie Zhang, Oz Yilmaz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... traveltimes. By performing a nonlinear traveltime tomography (Zhang and Toksoz, 1998) applied to picked first-arrival times, we estimated a final...

2008

Time-Lapse Seismic and Geomechanics

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... traveltime shifts to conclude that the overburden at Ekofisk had been stretched and that the chalk reservoir rock was compacted due to production...

2017

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

.... 1. Then the traveltime t is a function of dx and dy. This function contains only even powers of dx and dy. For conventional spreadlengths close...

Unknown

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

.... 1. Then the traveltime t is a function of dx and dy. This function contains only even powers of dx and dy. For conventional spreadlengths close...

Unknown

Abstract: Cross-Validation of 3C and 9C Prestack Shear Wave Splitting Analysis at Big Sky; #90224 (2015)

Jeff P. Grossman and Gulia Popov

Search and Discovery.com

... features and spatial resolution. As expected from theory, the traveltime delays between fast and slow modes estimated from pure shear wave data are twice...

2015

A depth uncertainty estimation system with prestack seismic data

Huafeng Liu, Andrey H. Shabelansky, Jinsong Chen, Min Yang, Cory J. Hoelting, Ying Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

... is surface offset, 𝒗 𝒏𝒎𝒐 and 𝜼 𝒆𝒇𝒇 are effective NMO velocity and effective Eta, respectively, 𝑡0 and 𝑡 𝑥 are two-way traveltime at 0 and x offset...

2022

Structure of the Gudauta Bank According to Reconnaissance Seismic Investigations

Yu. P. Neprochnov, V. N. Moskalenko

Petroleum Geology: A Digest of Russian Literature

... in the frequency range of 5-10 hertz. Counter and overtaking traveltime curves were obtained on the refraction profile. A composite traveltime curve...

1963

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