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The AAPG/Datapages Combined Publications Database

Showing 463 Results. Searched 188,833 documents.

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DMO and NMO as Applied in Seismic Data Processing

Jiunnyih Chen

Geological Society of Malaysia (GSM)

... A and B as shown in Figure 1. N y z Figure 1 : Ellipsoid reflector DMO AND NMO AS APPLIED IN SEISMIC DATA PROCESSING 41 For conventional seismic...

1989

ABSTRACT: The Impact of Post Migration Data Conditioning on Seismic Images and Attributes; #90115 (2010)

Adekanle Ayorinde, Youn Oong, and Iyiola Sunkanmi

Search and Discovery.com

... are residual multiples, high frequency random noise, coherent linear dipping noise, and residual Normal Moveout (NMO) and low frequency NMO stretch...

2010

Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)

Peter Whiting

Geological Society of Malaysia (GSM)

... imaging consists of NMO, DMO, stack and zero-offset time migration. Initially, NMO velocities are only approximate while constant velocity (or v(z) DMO...

1996

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

Emil Blias

Search and Discovery.com

... of seismic velocities is essential for transforming surface reflection time data into depth images of reflector locations. We should distinguish two kinds...

2015

Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)

Rob Vestrum

Search and Discovery.com

... picking velocities for NMO and pre-stack time migration in structured areas, we used an interactive velocity analysis tool that offers QC views of both...

2015

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... section for a subsurface consisting of a single dipping reflector. For a constant-velocity subsurface, the many weak diffractions from very closely...

1992

Improving AVO Fidelity by NMO Stretching and Offset Dependent Tuning Corrections, #41574 (2015).

Yong Xu, Satinder Chopra

Search and Discovery.com

...Improving AVO Fidelity by NMO Stretching and Offset Dependent Tuning Corrections, #41574 (2015). Yong Xu, Satinder Chopra Improving AVO Fidelity...

2015

Dip and Azimuth Determination in 3D CRS-Stack

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

Indonesian Petroleum Association

... stacking operation with certain condition which is planar reflector. In conventional stacking, amplitude of seismic wave only depends upon physical...

2013

Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)

Francois Audebert and Volker Dirks

Search and Discovery.com

... on the positioning of TTI reflector we build analytically a simple dipping facet (a local planar reflector) model. The facet dip is characterized by the phase...

2015

Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)

Raul Cova, David Henley, and Kris Innanen

Search and Discovery.com

... at different offsets depending on the reflector. In order to address the problem of a dipping LVL and validate the predicted traveltimes given...

2015

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

...Long-Offset Approximations to NMO Function for a Layered Subsurface E. Blias Long-Offset Approximations to NMO Function for a Layered Subsurface E...

Unknown

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

...Long-Offset Approximations to NMO Function for a Layered Subsurface E. Blias Long-Offset Approximations to NMO Function for a Layered Subsurface E...

Unknown

Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

.../s at the horizontal reflector. CMP gathers were generated for this model; NMO, DMO, and inverse NMO were applied; then velocity analyses were computed...

1992

Abstract: Seismic Study of a Possible Eroded Impact Structure, Southern Alberta; #90224 (2015)

Wei Xie and Douglas R. Schmitt

Search and Discovery.com

... Deconvolution (Different window length) CMP Binning/ Initial Velocity Analysis /NMO Correction Residual Statics Corrections Surface Consistent Spiking...

2015

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)

... the same point, the dipping reflector segment B is exhibiting an extended reflection area. Since stacking velocities depend on dip obviously the NMO...

1987

Anisotropy

Search and Discovery.com

N/A

Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)

James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm

Search and Discovery.com

... characterization of two principal crack densities, an infill fluid factor and isotropic background velocity is possible by inversion of NMO ellipses and zero...

2015

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

... effects are also present when imaging steeply dipping events. The usefulness of the AAMO equation is demonstrated by use of a Kirchhoff pre stack time...

2000

Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)

Sunjay Sunjay,

Search and Discovery.com

...; Berkovitch et al., 1998). The principle goal of multifocusing is the same as for NMO-DMO stack: to create an accurate approximation of the zerooffset...

2011

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

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