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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

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

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

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

Sunjay Sunjay,

Search and Discovery.com

... at a target depth; 2) For a flat reflector under a homogeneous overburden the NIP radius depends on the distance between the image point and the reflector...

2011

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

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 NMOFlat Layers +25 degrees 0.0 degrees common-offset gather (COFF) –25...

2014

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

..., namely NMO gathers (flat reflections), better imaging quality, more reasonable depth velocity model, which is determined from NMO curves. We use...

2015

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

Rob Vestrum

Search and Discovery.com

... feasibility of the reflector termination in question versus the geophysical diagnostic of the flat image gather. One may also use the same process to pick...

2015

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

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

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

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

Raul Cova, David Henley, and Kris Innanen

Search and Discovery.com

... of the reflector is considered. This effect is studied in the next section. Figure 2: Expected deviation from the vertical ray-path assumption when changes...

2015

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

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

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... such that the reflections from a given horizon will appear flat. This facilitates ide tification of reflectors and stacking. Figure 6 demonstrates the NMO process. Dip...

1992

Anisotropy

Search and Discovery.com

N/A

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

... NMO equation which is a straight ray calculation. Furthermore, the effective propagation velocity will be slowest in the direction perpendicular...

2000

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

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