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The AAPG/Datapages Combined Publications Database

Showing 464 Results. Searched 189,249 documents.

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Chapter 3: Preparation of Seismic Data for Stratigraphic Work

Tom Wittick

North Texas Geological Society

.... Normal Moveout or NMO Normal moveout corrects for the lateral offset that is present between the shot and receiver on each of the traces on a field...

1992

Preparation of Seismic Data For Stratigraphic Work

Abilene Geological Society

... Moveout or NMO Normal moveout corrects for the lateral offset that is present between the shot and receiver on each of the traces on a field record. Each...

1993

Multicomponent Seismic Studies of the Gas-hydrate System at the Storegga Slide

Stefan Bunz, Jurgen Mienert, Karin Andreassen

AAPG Special Volumes

... of the mid-Norwegian continental margin: Earth and Planetary Science Letters, v. 209, no. 34, p. 291307.Bunz, S., J. Mienert, M. Vanneste, and K. Andreassen...

2009

Integrated Interpretation of Seismically Derived Rock and Fracture Attributes for Shale Gas Reservoir Characterization

Gang Yu, Yusheng Zhang, Xing Liang, Uwe Strecker, Maggie Smith

Unconventional Resources Technology Conference (URTEC)

... elliptical velocity inversion indicates that anisotropy varies horizontally and vertically, and that it is dominantly controlled by stress azimuth, which...

2014

Abstract: Seismic Detection of Cracks in Carbonates Associated with Potash Mining; #90171 (2013)

Zimin Zhang and Robert R. Stewart

Search and Discovery.com

...%). For horizontally traveling waves, the P-velocity decreases by about 0.75km/s (13.5%) and the SV-velocity drops at the same amount as vertical propagation...

2013

Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... (Crampin, 1981). Using P-wave NMO velocity variation with azimuth (VVAZ), fracture orientation is considered to be in the direction of the fast P-wave...

2014

High Performance Computation by Graphics Processor Unit Technology for Geophysical Seismic Signal Processing, #40727 (2011)

Sunjay Sunjay

Search and Discovery.com

... of Earth exploration is to provide the oil and gas industry with knowledge of the Earth's subsurface structure to detect where oil can be found...

2011

Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2

B. A. Hardage

AAPG Special Volumes

... the energy source and the receivers are positioned on the earth's surface. What happens to the seismic wavelet as it propagates from the source...

1985

Abstract: AVAZ Inversion for Anisotropy Parameters of a Fractured Medium; #90174 (2014)

Faranak Mahmoudian, Gary F. Margrave, and Joe Wong

Search and Discovery.com

... has a strong effect on all seismic wave propagation aspects; it causes shear wave splitting, azimuthally-dependent NMO velocity, and amplitude...

2014

Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)

Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra

Search and Discovery.com

... heterogeneity in an isotropic earth. Jenner (2009; 2010) shows how lateral velocity anomalies in the overburden create phantom VVAZ responses which...

2014

Abstract: Application of Surface-wave Modeling and Inversion in Cordova Embayment of Northeastern British Columbia; #90187 (2014)

Antoun Salama, Niranjan Banik, Mona Cowman, Kevin Roberts, Anna Glushchenko, Mark Egan, Alfonso Gonzalez, Eric von Lunen, and Jennifer Leslie-Panek

Search and Discovery.com

... normal moveout (NMO) corrections, an appropriate inside mute and outside mute to each shot gather, and then inverse NMO to the gathers. A representative...

2014

Section 3: Displays of Seismic Sections: Convergent Margin Off East Coast of North Island, New Zealand, Parts I and II

F.J. Davey, K. Lewis, J.R. Childs, and M.A. Hampton

AAPG Special Volumes

... pre-stack partial migration, velocity analysis, NMO correction, 24-fold stacking, filtering, finite-difference migration, AGC, filtering, and scaling...

1986

Abstract: Near Surface Anomalies and Solutions; #90211 (2015)

Todd Mojesky, David LeMeur, and Ali Karagul

Search and Discovery.com

... algorithms (GLI, GMG, ...). These assume a layered model of the earth, with refractor head waves propagating along locally continuous boundaries. In more...

2015

Azimuthal Velocity Analysis of 3-D Pre-Stack Seismic Data for Fracture-Induced Anisotropy in the Altamont-Bluebell Field

Khaled Al Dulaijan, Gary Margrave

Unconventional Resources Technology Conference (URTEC)

.... A method for VVAZ inversion, based on the elliptical NMO equation for Transverse Isotropy (TI) media that was derived by Grechka and Tsvankin (1998...

2016

Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)

Emil Blias

Search and Discovery.com

... velocities and imaging. This technology includes four main steps: (i) High-density automatic non-hyperbolic NMO picking, (ii) Analytical NMO inversion...

2015

Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)

Todor I. Todorov, Gary F. Margrave

Search and Discovery.com

... of the earth, the seismic signal is not stationary. Margrave (1998) presented the theory of the nonstationary linear filtering, which is a better approximation...

2014

P-Wave Azimuthal Anisotropy and Its Application in Sandstone-Conglomeratic in Yani Oil Field

Zha Chaoyang, Shen Shuirong, Hairunnisa, Xia Tianfang

Indonesian Petroleum Association

... is tight with low permeability and porosity. Data Two subsets of 3D seismic data were loaded: post-stack migration and pre-stack NMO CDP gathers. Pre...

2008

Beam Migration for Imaging of Complex Structures

Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki

Indonesian Petroleum Association

... components into the earth. The dip components can be enhanced based on various criteria before the backpropagation, thereby giving a more coherent...

2009

Acoustic and Elastic Modeling of Seismic Time-Lapse Data from the Sleipner CO2 Storage Operation

R. J. Arts, M. Trani, R. A. Chadwick, O. Eiken, S. Dortland, L. G. H. van der Meer

AAPG Special Volumes

... in the geological storage of carbon dioxide: NATO Science, IV Earth and Environmental Sciences: Dordrecht, Springer, v. 65, p. 303314.Chadwick, R. A., D...

2009

Application of General Surface Multiple Prediction, a True Azimuth 3D Surface Related Multiple Elimination Technique, in the Deep Water Area of the Eastern Makassar Strait

Andreas T. Waluyo, Frank Büker

Indonesian Petroleum Association

.... When a suitable stand-in trace is found, its offset is adjusted using differential NMO to closer match that of the desired trace. Figure 5 - 2D...

2009

Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China

Gang Yu, Yusheng Zhang, Ximing Wang, Xing Liang, Uwe Strecker, Maggie Smith

Unconventional Resources Technology Conference (URTEC)

... attribute analysis of anisotropy from elliptical velocity inversion indicates that anisotropy varies horizontally and vertically, and that it is dominantly...

2016

Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China; #41829 (2016)

Gang Yu, Yusheng Zhang, Uwe Strecker, Maggie Smith

Search and Discovery.com

... horizontally and vertically and that it is dominantly controlled by stress azimuth, which conforms to the current day stress field as independently...

2016

Velocity Analyses of Near Seafloor Strata Based on Multichannel Seismic Data from the Tonga Platform

Jeffrey E. Cole, Dennis M. Mann

Circum Pacific Council Publications

... Council for Energy and Mineral Resources 2008 – Geology and Offshore Resources of Pacific Island Arcs-Tonga Region, Earth Science Series, Volume 2...

1985

Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)

Hassan Khaniani and John C. Bancroft

Search and Discovery.com

... that appropriate smoothing is determined by optimizing between scattering of the rays, distorting the structure of the earth model, losing...

2015

Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)

Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy

Search and Discovery.com

.... It uses differential residual NMO travel times between the top and base of a fracture layer and performs a least-square inversion using travel times...

2014

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