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The AAPG/Datapages Combined Publications Database

Showing 613 Results. Searched 188,958 documents.

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Fracture Detection by Azimuthal Differential Residual Moveout

Juefu Wang

Search and Discovery.com

...Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang...

Unknown

Fracture Detection by Azimuthal Differential Residual Moveout

Juefu Wang

Search and Discovery.com

...Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang...

Unknown

Abstract: Converted-wave Time Imaging … Nuts and Bolts; #90187 (2014)

Shaowu Wang, Thomas Hollis, and Wayne Nowry

Search and Discovery.com

..., 71, no. 2, S73–S83. Grechka, V., and I. Tsvankin, 1999a, 3-D moveout velocity analysis and parameter estimation for orthorhombic media: Geophysics, 64...

2014

Effective Data Denoising and Imaging in the Sanga Sanga PSC Using CRS Approach

Michele Buia, Paolo Marchetti, Amalia Setoputri, Teguh Nugraha

Indonesian Petroleum Association

.... It presents several advantages when compared to conventional stacking methods such as NMO/DMO stack; firstly it uses a traveltime moveout formula...

2008

Advanced Approach Toward Understanding Geologically Complex Area Using MDRS (Multi-Dip CRS): A Case Study

Naoshi Aoki, Shogo Narahara, Akihisa Takahashi, Tsukasa Nishiki

Indonesian Petroleum Association

... of post-stack data so that the result remains unaffected by an initial stacking velocity assumption. This method not only depicts conflicting dips more...

2011

Abstract: Extracting, Understanding & Utilizing Azimuthal Anisotropy Through Depth Imaging; #90316 (2017)

Pavel Vasilyev, Cara Smith, Anna Glushchenko, Paul Marsden, Edgardo Vargas

Search and Discovery.com

.... Any seismic imaging exercise requires the use of some sort of velocity model, whether it is simply applying moveout velocity prior to stacking...

2017

ABSTRACT: Resolution of Static Corrections in Sand Dune Regions: A successful Case History; #90051 (2006)

Koshy Thomas Thayyil, Ralph Bridle

Search and Discovery.com

... datum. To prevent stacking velocity distortions datum statics are applied from base of sand to final datum with the sand time applied residually. U...

Unknown

The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... are being processed to generate plots of interval velocity versus depth which grossly approximate velocity surveys or integrated acoustic logs. Lower...

1971

Improving Marcellus Imaging Through the Use of FWI and Joint Tomographic Inversion for Velocity and Epsilon

David McCann

Unconventional Resources Technology Conference (URTEC)

... Hz. URTeC 2878680 4 Figure 3 Refraction tomography versus FWI in near surface increase velocity zone. Both approaches are valid in the type...

2018

Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data

Walt Ritchie and Mihai Popovici

Search and Discovery.com

... (i.e., only small residual moveout error represents large velocity variation). The net effect was that residual curvature (velocity) estimates from...

2009

Chapter Ten-part 2: Depth Conversion

Leslie R. Denham, Dave K. Agarwal

AAPG Special Volumes

... survey does, and usually more accurately. Seismic data themselves provide velocity information through measurement of normal moveout (NMO). If a seismic...

2011

Imaging of the Guando Field Colombia in Time and Depth

M.A. Hall, V. Avramovic, J.T. Basick, I. Novianti, D.T. Maucione, P.Kroshko, J.C. Garzon

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... residual moveout on pre-stack depth migrated gathers, which is used as input for the tomographic update of the interval velocity model. For the Guando...

2003

Abstract: AVAZ and VVAZ Practical Analysis to Estimate Anisotropic Properties; #90224 (2015)

Yexin Liu

Search and Discovery.com

... results. Seismic travel-time/velocity variations (VVAZ) For a single orthorhombic layer model, the moveout for conventional P-waves can be approximated...

2015

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

... multiple attenuator. Normal moveout corrections orientate primary reflectors horizontally on the common mid• point gather. Slower velocity multiple...

1988

SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing

Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver

AAPG Special Volumes

..., automatic static corrections, velocity analyses (normal moveout correction for increasing source to receiver distances), summing (stacking) of the moveout...

1983

Orthorhombic Imaging for Orthogonal Wide Azimuth Surveys in Mississippi Canyon, Gulf of Mexico; #30391 (2014)

Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang

Search and Discovery.com

..., is not sufficient for explaining moveout fluctuations detected in different azimuthal sectors. Orthorhombic anisotropy (ORT), which describes both...

2014

Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)

Thais A. Guirigay and John B. Bancroft

Search and Discovery.com

... a converted wave velocity Vc from the hyperbolic moveout on a CSP gather. Moveout (MO) correction and stacking completes the prestack migration. We obtain Vc...

2015

Direct Hydrocarbon Indications Using Seismic Amplitude Variations with Offset

William J. Ostrander

AAPG Special Volumes

... of incidence is easily related to shot-to-group through the normal moveout equation. Just prior to CDP stacking, seismic data traces generally are collected...

1987

Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance

Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

..., for weak anisotropy, the P wave normal moveout (NMO) velocity at an arbitrary azimuth is given by Tsvankin (1997): Vnmo    V0 1  2 cos2...

2016

Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming

Alvin K. Benson

Wyoming Geological Association

... (a) the complications produced by rapid lateral velocity changes, velocity pull-up, etc., and (b) the necessity of using a depth imaging process versus...

1995

Determination and Delineation of Anomalously Pressured Gas Accumulations in the Siberia Area, Washakie Basin, Wyoming

Ronald C. Surdam, Zun Sheng Jiao, Yuri Ganshin, Nicholas G. K. Boyd III

Wyoming Geological Association

.... The moveout analyses on CMP gathers with consecutive stacking velocity function calculation were performed on a sample-by-sample basis. The spatial...

2001

Three-Dimensional Depth Imaging of Seismic Data to Assess Subsurface Geology in Northern Utah and Southwestern Wyoming

Alvin K. Benson

Utah Geological Association

... lateral velocity variations in the rocks and the importance of using depth imaging versus conventional time imaging of seismic data when mapping complex...

1999

Abstract: The Elastic Look-Ahead Walkaway and Predictive Drilling Applications; #90213 (2015)

Scott Leaney, Alberto Malinverno, and Michael Jones

Search and Discovery.com

... recordings – velocities are estimated using either stacking coherency or reflection tomography. But these velocity estimates may still be too...

2015

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