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The AAPG/Datapages Combined Publications Database

Showing 463 Results. Searched 188,963 documents.

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Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... seismic data processing is aimed at imaging the earth's subsurface, that is, obtaining a picture of subsurface structure from the seismic waves recorded...

1992

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

... in a higher S/N ratio image then the conventional (NMO/DMO-) stack. The underlying theory of CRS stack is, however, developed for imaging primary events...

2007

Seismic Acquisition and Processing

Bruce S. Hart

Special Publications of SEPM

... and Processing energy loss as the acoustic pulse travels down into the earth and is reflected, through attenuation, ode conversion (e .g ., P waves...

2000

Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data … A First Example from Malaysia

Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge

Indonesian Petroleum Association

..., for shallow events and at large offsets a frequency distortion occurs as a result of Normal Moveout Correction (NMO), and a mute is required to remove...

2013

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

... with offset. The most common sorts the data into a common midpoint (CMP) gather and determines the best-fit normal moveout velocity, V nmo...

2001

Abstract: Azimuthal Anisotropic NMO Analysis for Amplitude Stripping Removal in Sumandak 3D Reprocessing (Geophysics Paper 15)

Mazlan Ghazali, Edgardo Padron, Mehmet Ferruh

Geological Society of Malaysia (GSM)

...Abstract: Azimuthal Anisotropic NMO Analysis for Amplitude Stripping Removal in Sumandak 3D Reprocessing (Geophysics Paper 15) Mazlan Ghazali...

2011

Developing a robust geologic conceptual model using pseudo 3-D P-wave seismic reflection data

Adrian D. Addison, Michael G. Waddell, Camelia C. Knapp, Duke T. Brantley, John M. Shafer

Environmental Geosciences (DEG)

... of the seismic data into a solid earth model that is the basic part of a site conceptual model. The outcome was the production of realistic horizon surface maps...

2009

Pre-Stack Imaging: Time or Depth? (Paper 25)

Carl Notfors, Peter Whiting, Geoff Mansfield

Geological Society of Malaysia (GSM)

..., with NMO and DMO, only does this approximately. Prestack Kirchhoff imaging avoids approximation and can image seismic data more precisely. Real & synthetic...

2000

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... of a converted-wave seismic trace, the regular processing flow of NMO plus DMO and poststack migration can have difficulty achieving an optimal image...

2015

Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis

Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer

Journal of Sedimentary Research (SEPM)

... laminated oil shales must represent the hypolimnial deposits of stratified lakes, in which lack of oxygen prevented bioturbation. In his model, the lake floor...

1991

Seismic Velocity Anisotropy in Chimore Area, Bolivia

Michael Fry, Eloy Martinez, James Baker, Mark Wallace

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... reflector degradation is seen as a set of time shifts associated with changing velocity with azimuth. This sinusoidal azimuthal variation in NMO velocity...

2008

A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... violates our traditional NMO and CDP assumptions. Added to these subsurface challenges are the additional considerations of rapid elevation changes (up...

1997

Seismic Processing in the Papua New Guinea Fold Belt - Recent Experience

N. J. Fisher, F. R. Nicholson

Papua New Guinea (PNG) Petroleum Convention Proceedings

..., Deconvolution, Initial Statics, Velocity Analysis, Residual Statics, NMO, Mute, Stack with velocities and residual statics usually iterated a second time...

2000

Conditioning Prestack Seismic Data in the Offset-Azimuth Domain; #42462 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... is not optimal. Instead of stacking the azimuthally-sectored normal moveout, or NMO, corrected traces at every CMP, we suggest generating supergathers using...

2019

Multichannel Data Acquisition and Processing

Gregory L. Smith, David A. Falvey, Raymond Shaw

Circum Pacific Council Publications

..., Geology and offshore resources of Pacific island arcs—Vanuatu region, Circum-Pacific Council for Energy and Mineral Resources Earth Science Series, v...

1988

Shale Gas OVT Seismic Data Prestack Trace-Gather Optimization Technique

Yusheng Zhang, Gang Yu, Xing Liang, Benjing Liu, Guangming Hu

Unconventional Resources Technology Conference (URTEC)

... and intercept of τ. Normally, multiples have approximately parabolic moveout in the gathers after NMO correction, while other types of coherent noise...

2015

Dip and Azimuth Determination in 3D CRS-Stack

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

Indonesian Petroleum Association

...):  extracting v NMO in conventional stacking. K NIP is obtained from CMP gather in automatic manner because it is better to have this attribute for every...

2013

Geophysical Interpretation of Pinedale Field

Sally G. Zinke

AAPG Special Volumes

... and analysis supplied information critical to the definition of the field limits both vertically and horizontally. This understanding of the field limits has...

2014

Abstract: AVO Analysis of a 2D Seismic Line in the Malay Basin (Paper 9)

Dashuki Mohd, Idrus Mohd Shuhud

Geological Society of Malaysia (GSM)

... at every 1 km interval, Radon velocity filtering and NMO correction. The NMO corrected CMP gathers were used for AVO analysis. The AVO analysis...

1995

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

Anisotropy

Search and Discovery.com

N/A

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... the amplitude versus offset relationship introducing systematic error into subsequent AVO analysis. Further, spectral balancing is often performed after NMO...

2013

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

...NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers E. Blias NMO Inversion for Multilayer Subsurface with Horizontal...

Unknown

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

...NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers E. Blias NMO Inversion for Multilayer Subsurface with Horizontal...

Unknown

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