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The AAPG/Datapages Combined Publications Database
Showing 17,690 Results. Searched 200,293 documents.
The calculation of first-arrival P-wave traveltime for attenuating TTI media
Mengxiu Wang, Jingyi Chen, Zhengcong Zhao, Kaiyuan Ji, Shaoying Chang
International Meeting for Applied Geoscience and Energy (IMAGE)
... independent of the quasi S-wave attenuation coefficient As 0 and the impact of the S-wave velocity vso on the traveltime is weak and negligible. Thus, Hao...
2022
Relations of Settling Velocity of and Sized Spheres and Sample Weight
J. D. Hulsey
Journal of Sedimentary Research (SEPM)
...Relations of Settling Velocity of and Sized Spheres and Sample Weight J. D. Hulsey 1961 Vol. 31 No. 1. (March), The fall velocities...
1961
Effect of near offset seismic data in shallow subsurface modeling using full-waveform inversion
Md Iftekhar Alam, Salman Abbasi
International Meeting for Applied Geoscience and Energy (IMAGE)
... modeling. Lack of coherent reflections, random noise, clipped waveforms, and variable velocity gradients are some of the factors highly driven...
2024
Seismic Imaging Improvements in the Bolivian Fold-and-Thrust Belt Through Psdm
A. Rocha, J. Subia
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., then going deeper in order to not introduce velocity errors that could propagate downwards. Some key points were taken into account: - - - - - - use...
2006
Stabilizing two-term clock-drift inversion in ocean-bottom node processing
Beng Seong Ong, Zhaojun Liu, Carsten Udengaard
International Meeting for Applied Geoscience and Energy (IMAGE)
...) processing, removing the effects of water velocity variation and correcting for node positions and clock-drifts reduce statics in the data. Clock-drift...
2024
Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields
J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...). In this process, non flatness of the CIGs is associated with velocity errors along the travel paths of the corresponding Common Reflection Point (CRP) ray...
2006
How distinctive are flood-triggered turbidity currents?
Catharina J. Heerema, Matthieu J.B. Cartigny, Ricardo Silva Jacinto, Stephen M. Simmons, Ronan Apprioual, Peter J. Talling
Journal of Sedimentary Research (SEPM)
... to identify river-flood-triggered turbidite deposits, which are largely based on the assumption that a characteristic velocity structure of the flood...
2022
Quantitative Interpretation: Use of Seismic Inversion Data to Directly Estimate Hydrocarbon Reserves and Resources
James Shadlow, Adam Craig, David Christiansen, Robert Mitchell
Petroleum Exploration Society of Australia (PESA)
... intervals are thought to contribute to the errors. Therefore, a new velocity model was required to minimise the depth errors at the wells, so...
2018
Abstract: Calibration – The Basis for Successful Modeling, by J. L. Gevirtz and K. E. Williams; #90091 (2009)
Search and Discovery.com
2009
Estimating Reservoir Oil Volume and its Likelihood from 3C-3D Seismic Data, Well Logs, and Geostatistics; #41305 (2014)
Robert R. Stewart and Henrique A. Fraquelli
Search and Discovery.com
... is applied to the P-P data to estimate the acoustic impedance. A 3-D converted-wave (P-to-S on reflection) inversion for shear velocity computes a PS...
2014
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
...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...
2014
SYNTHETIC SEISMOGRAMS
Search and Discovery.com
N/A
Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)
Thais A. Guirigay and John B. Bancroft
Search and Discovery.com
... wave prestack migration and velocity analysis has been developed. That is based on the consideration of prestack migration by equivalent offset...
2015
Results of a Preliminary Test Investigation on the Applicability of Passive Seismic Tomography in VC Block - Assam, India; #41070 (2012)
Rohit Sinha, Nikos Martakis, Akis Tselentis, and Paris Paraskevopoulos
Search and Discovery.com
... of the network are smaller than the focal depth can, lead to significant focal depth calculation errors and consequently will affect the velocity...
2012
Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)
Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek
Search and Discovery.com
... velocity data. It can be shown that the particle velocity vector is intimately related to the pressure gradient vector. If we could acquire the horizontal...
2011
Quantifying Seismic Volumetric Error Using Outcrop-Based 3-D Forward Seismic Modeling
Search and Discovery.com
N/A
Performance of elastic FWI for different wrapping angles of helical fiber in seafloor-deployed DAS
Shogo Masaya, Masanori Tani
International Meeting for Applied Geoscience and Energy (IMAGE)
...) of HWF in DAS acquisition at a well. However, these previous studies do not discuss the influence of HWF on velocity modeling. A couple of studies (Pan...
2024
Using Multiple Downhole VSP Arrays for Monitoring and Locating Passive Microseisms in the Oil Reservoirs; #41561 (2015)
Zuolin Chen
Search and Discovery.com
... are calculated at the nodes of a 3-D grid. For convenience in viewing the results, the maximum horizontal and vertical errors of an error ellipse are plotted...
2015
Aspects of Rock Physics From Laboratory and Log Data that are Important to Seismic Interpretation: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
A. R. Gregory
AAPG Special Volumes
... and errors in velocity may range from one to several percent. These difficulties are magnified for shear waves (S waves) because many S-wave...
1977
The Geophysicist Communicating with Seismic Processing
R. E. Sheriff
Southeast Asia Petroleum Exploration Society (SEAPEX)
... makes possible, for example, accessing a velocity model of a prospect for seismic reduction processing, log analysis, modelling, or drilling...
1980
PSDM Enhances Reef Interpretation in Jatiluhur Block, West Java
Jopie I. Adhidjaja, Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
... errors are then used to estimate the interval velocities. Also, it is used to refine the initial velocity model, by adding intermediate horizons or down...
2002
Reservoir Characterisation Study: Inter Well Reservoir Property Prediction and Mapping by Petrophysics Data and Seismic Data Integration
Robi Junipa, Michel Bee
Indonesian Petroleum Association
... (more accurate). This interpolation process resulted in small errors, thus the velocity values are re-extracted along the boreholes, and again compared...
2010
Ways for Improving Results of Wildcat Drilling in the Dnieper-Donets Depression
B. P. Kabyshev, I. S. Roslyy, T. I. Smirnova, A. F. Shevchenko
Petroleum Geology: A Digest of Russian Literature
... highs, errors are caused by insufficient knowledge of horizontal velocity gradients. Therefore, the volume of parametric drilling should be increased...
1979
ABSTRACT: Drilling-Induced Fractures: Their Identification and Analysis, by Byron R. Kulander; #91030 (2010)
Search and Discovery.com
2010
Abstract: Where on Earth are We Now?
Azhari bin Mohamed
Geological Society of Malaysia (GSM)
... to remove systematic errors due to earth deformation. This modelling is based on a velocity model and would effectively be a time-dependent transformation...
2011