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The AAPG/Datapages Combined Publications Database
Showing 493 Results. Searched 195,354 documents.
Normal Moveout and Dip Moveout, C. L. Liner, #40037
Search and Discovery.com
N/A
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 NMO – Flat 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
Understanding Seismic Amplitudes, by Steve Henry, #40135 (2004).
Search and Discovery.com
2004
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
ABSTRACT: An Integrated Approach to Pressure Prediction from 3D Seismic Data, by Mike French and Dr. Nader Dutta; #90913(2000).
Search and Discovery.com
2000
Understanding the causes of low frequency shadow below gas hydrates
Ayman Noor M. Qadrouh, Saad Alajmi
Petroleum Exploration Society of Australia (PESA)
... causes of LFS are the presence of free gas or normal moveout (NMO) stretching. In order to have a deep understanding of the low frequency shadow causes...
2019
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