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The AAPG/Datapages Combined Publications Database

Showing 460 Results. Searched 187,994 documents.

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Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015)

Emil Blias

Search and Discovery.com

..., that is the medium has almost horizontal boundaries with almost homogeneous layers. But this is not completely right because we can see significant dips...

2015

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

Emil Blias

Search and Discovery.com

... complicated, including several inhomogeneous curvilinear layers? It can be proved theoretically that for a subsurface with modest structures we can use...

2015

Abstract: Improving the Statics Solution through De-migration: A Canadian Foothills A-PSDM Case History; #90172 (2014)

Jiwu Lin, Sylvestre Charles, Josef Heim

Search and Discovery.com

... source position, Ck= arbitrary time th th shift for k CDP gather, Mk=residual NMO component at k CDP gather, and (j-i) = source-to-receiver distance...

2014

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

Marine Statics

Chiem Boon Hong

Geological Society of Malaysia (GSM)

... Lutong, Sarawak Abstract: Statics are in general a problem which is commonly encountered in land seismic because of weathering layers and the elevation...

1987

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

Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... and CDP ray palh s. COP record tor model NMO and DMO Fig. 3. Contli cling lim c dips rcsulting in diffcrc nl movc-outs for th e same zero offsel retl...

1987

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... to achieve the interpretable image will likely consist of several individual steps. The number of steps, the order in which they are applied...

1992

Abstract: Static Corrections Via Raypath Interferometry: Recent Field Experience; #90224 (2015)

David C. Henley

Search and Discovery.com

... conventional statics correction methods, is a set of NMO-corrected source or receiver gathers. Each gather is transformed to the radial trace (RT) domain...

2015

Abstract: Full Anelliptic Time Processing (Paper 7)

Charles Zeltser

Geological Society of Malaysia (GSM)

... into account during the subsequent processing steps such as normal moveout (NMO), dip moveout (DMO), and prestack time migration (PSTM). Anelliptic time...

2003

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

... for the whole line. Wavefront propagating upwards through complex geology NMO – Flat Layers +25 degrees 0.0 degrees common-offset gather (COFF) –25...

2014

DMO and NMO as Applied in Seismic Data Processing

Jiunnyih Chen

Geological Society of Malaysia (GSM)

...DMO and NMO as Applied in Seismic Data Processing Jiunnyih Chen Geol. Soc. Malaysia, Bulletin 25, December 1989; pp. 39 - 52 DMO and NMO as applied...

1989

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

... images. Also, several attributes are produced as by products of this new method, which can be used as a tool for further calculations. The CO CRS...

2009

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... of approximations, proposed by several researches, but the main idea of all NMO approximations is to keep time t and its derivatives at x = 0 the same...

Unknown

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... of approximations, proposed by several researches, but the main idea of all NMO approximations is to keep time t and its derivatives at x = 0 the same...

Unknown

Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"

Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng

Indonesian Petroleum Association

... as an anisotropic medium. Many common types of anisotropic media can be approximated by sequences of isotropic layers with the seismic propagation...

2000

Understanding Multiples to Upgrade Low-Relief Prospects

Sunu H. Praptono, Witan O. Ardjakusumah

Indonesian Petroleum Association

... The Pematang Group (Syn-Rift Sediments) This group of sedimentary rock layers can be subdivided into two seismic facies. The lower layer consists of parallel...

1996

Modern Marine 3D Seismic Acquisition - Technical Considerations

Chris Walker

Petroleum Exploration Society of Australia (PESA)

.... As diffractions exhibit the full range of dips, the spatial sampling criterion for such energy, with an identical bandwidth to a reflection signal, is more...

1997

Abstract: Bin-Share Stacking for 3D Converted Wave Processing; #90174 (2014)

Alex A. Falkovskiy, Robert Tilson, Gerry Schlosser, and Elvis Floreani

Search and Discovery.com

... of an optimum bin size for the P-wave processing, velocity analysis, NMO, stacking and other steps including migration. P-S data processing requires...

2014

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

... fidelity of wavefield representation by treating conflicting dips. In this method, a reflection event can be enhanced by a CRS operator that stacks seismic...

2011

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

Emil Blias

Search and Discovery.com

... large differences in stacking velocity behaviour for deep seismic reflectors with small dips. A non-fist-breaks technology provides us tools...

2015

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

... separated by the simple but critical process of Normal Moveout correction (NMO) and Common Mid-point (CMP) stack. NMO and CMP stacking require...

1987

Woollybutt 2001: A Geoscience Odyssey

D. J. Hearty, M. A. Battrick

Petroleum Exploration Society of Australia (PESA)

... the use of the reprocessed seismic NMO D.J. Hearty & M.A. Battrick ARBITRARY LINE THROUGH WOOLL YBUTT FIELD A s WBT3A • WBT 2AST1 W.B.1A WBT1...

2002

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