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The AAPG/Datapages Combined Publications Database
Showing 547 Results. Searched 200,357 documents.
Recent Advances in Borehole Seismic
W. L. Nutt
Indonesian Petroleum Association
... the subsurface model. This NMO correction has the effect of replacing the oblique reflector travel times from the source to the receiver by the corresponding...
1984
New constraints on buried Triassic basins and regional implications for subsurface CO2 storage from the SeisData6 seismic profile across the Southeast Georgia coastal plain
Olusoga M. Akintunde, Camelia C. Knapp, James H. Knapp, David M. Heffner
Environmental Geosciences (DEG)
... of subhorizontal reflectors below the topmost reflector. We reinterpreted the topmost reflector to originate from a change in velocity and density between...
2013
Seismic Sequences and Their Distribution on the Wilkes Land Margin
S. L. Eittreim, G. L. Smith
Circum Pacific Council Publications
... with an unknown thickness of flat-lying sediments according to radio-echo sounding data of Steed and Drewry ( 1 9 8 2 ) . Gradients in the magnetic field indicate...
1987
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
New Data Reveals Sub-Salt Levantine Basin
Øystein Lie, Per Helge Semb
GEO ExPro Magazine
... and NMO stack. The up-going pressure wavefield (P-up) derived from the dual-sensor data was extrapolated to the 2006 survey streamer depth...
2009
Abstract: A Seismic Workstation Solution to Bakken AVO; #90174 (2014)
D. Meisinger and N. H. Kalmanovitch
Search and Discovery.com
... a measure of interference between P and S waves at a reflector and since fractures change S waves AVO should provide the ability to distinguish between...
2014
AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)
Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman
Search and Discovery.com
...-simulating reflector (BSR) on low frequency seismic records. One of the methods that may provide constraint on the concentration of gas hydrate...
2015
Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2
B. A. Hardage
AAPG Special Volumes
..., the geophone is clamped at a fixed recording depth, but the source is moved to various offset distances. In both instances, a flat, horizontal reflector can...
1985
Deepwater debrites and linked megaturbidites in confined basins: An example from the Onnuri Basin, East Sea of Korea
Deniz Cukur, In-Kwon Um, Jong-Hwa Chun, Gwang-Soo Lee, Gee-Soo Kong, Samuel Y. Johnson, Senay Horozal
Journal of Sedimentary Research (SEPM)
... Sea, lies at water depths of 2,000 to 2,500 m, deepening gradually to the north. It is characterized by a flat seafloor except for a few islands...
2021
Seismic Profiles of the Powder River Basin, Wyoming
W. Richard Moore
Rocky Mountain Association of Geologists
... reflector is diminished over the top of the remnant, possibly indicating deposition of thinner sandstones. Reflections above the Dakota, up to the Sussex...
1985
Revealing the discontinuities by 3D prestack diffraction separation and imaging
Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... is to provide a feasible and effective separation method in the 3D shot domain. At first, we parameterize the local slope through the normal moveout (NMO...
2022
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
G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset
Norman S. Neidell
AAPG Special Volumes
... approaches as represented by seismogram synthesis assume a flat-layered subsurface and so the vertical travel paths employed are also taken to be normal...
1987
DAS seismic monitoring of the shallow CO2 controlled-release experiment at the South West Hub In-Situ Laboratory
K. Tertyshnikov, R. Pevzner, B. Freifeld, L. Ricard, A. Avijegon
Petroleum Exploration Society of Australia (PESA)
...; the wavefield separation has been performed and seismograms were NMO corrected. Figure 2 shows the results of the processing: panels from left to right...
2019
Abstract: Variable Depth Streamer Acquisition: Enhancing Interpretation with Broadband Marine Seismic; #90174 (2014)
R. Soubaras, R. Dowle, and R. Sablon
Search and Discovery.com
... are overlain on the water bottom reflector for reference. The resolvability of the dipping nearsurface reflectors is greatly improved with the deghosted...
2014
Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling A Case Study From the Norwegian North Sea
Nguyen Nam, Larry Fink
Indonesian Petroleum Association
... the seismic wavelet, are not discussed in this paper. The causes for AVO scaling problems, such as multiples, incorrect velocity, residual NMO...
2007
Where's the Data? Acquisition and Processing of Seismic Data in the PNG Highlands
Subhash Chandra, Geoff Mansfield, Peter Carver
Petroleum Exploration Society of Australia (PESA)
... data to enhance the imaging . simplistic flow and reliance on the flat layer assumptions of conventional NMO and Stack. The 2005 seismic section...
2015
Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015)
Juefu Wang and Shaowu Wang
Search and Discovery.com
... applying the interpolation. This new method does not require this effort. Furthermore, multiples or dipping events are usually not flat after NMO...
2015
Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi
Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan
Indonesian Petroleum Association
... velocity analysis. Several spots in the northern part underneath the ophiolite showed relatively flat gathers after NMO correction with minimum residual...
2021
Three-Dimensional Seismic Analysis in the Characterization of a Giant Carbonate Field, Onshore Abu Dhabi, United Arab Emirates
Peter Melville, Omar Al Jeelani, Saeed Al Menhali, Jürgen Grötsch
AAPG Special Volumes
... with the (A) conventional (NMO) and (B) longer offsets processing (AAMO). The section is flattened at Base Tertiary to make the shallow-generated multiples...
2004
Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand
Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher
AAPG Special Volumes
... in this region exhibit classic characteristics indicative of a reflector at the base of the gas-hydrate stability zone: (1) they predominantly have a negative...
2009
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
Enhanced ray-based tomography method
Jonathan Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... as follows: 1. 2. Run PSDM with an initial velocity model. Check the migration gathers. If the gathers are flat, accept the model and stop the process...
2024
Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)
Saul E. Guevara, Gary F. Margrave, and William M. Agudelo
Search and Discovery.com
... are identified by 1 and 2 in Figure 1(a). Borehole 1 was located in a flat area on a Quaternary Formation, about 400 m away from a river on its flood...
2014