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Keywords: well control
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216194
... ABSTRACT Seismic exploration is challenging when there are few or no nearby wells. A seismic inversion would typically require better well control, to specify a low frequency model. Therefore, interpretations are often based on more qualitative amplitude versus offset (AVO) analysis...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17431218
... and production efforts. A comparison of these two classification techniques is performed using Oligocene Catahoula oil-bearing sands overlying a shallow salt structure along the Gulf Coast, where well control is abundant and used to ground-truth the seismic classifications of shale, brine-sands and oil sand...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13841517
... keep the velocity at well locations unchanged. Then we combine migration results and inversion velocity with well control to get the final velocity field. This method can increase the efficiency of inversion iteration and improve the precision. Examples from the synthetic dataset and real data can...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5852423
... and properties away from calibrated well control. This technique has been successful in delineating the lateral extent and distribution of reservoir rock properties of conventional reservoirs. The same methodology is being applied to unconventional resource plays successfully as long as properly calibrated well...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1292
... Summary The purpose of this case study was to illuminate the morphology of a prolific sand trend across SM Energy’s acreage and better define the edges of the trend away from well control via seismic reservoir characterization. This was accomplished by using a quantitative analysis workflow...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0403
... houston 2013 well control sand model dielectric permittivity porosity model dataset seismic tomography inversion porosity log reservoir characterization upstream oil & gas inversion scenario tomography heterogeneous alluvial aquifer prediction Modeling the porosity of a heterogeneous...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0408
..., a geostatistical inversion approach was applied to improve areal mapping of very thin sandstone reservoirs in a Paleocene depositional sequence. We used a high-quality 3D seismic data set with sparse well control. Reasonable stratigraphic and depositional facies analysis established the framework necessary...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-1484
... depositional lobe padre island national seashore lateral wall well control seg houston 2013 foredune blowout throat upstream oil & gas reflector reservoir characterization artificial intelligence blowout annular pressure drilling Characte Mallorie J Correspon 1. Summar In the prese National...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0373
... Summary We present a case study from the Kwanza basin offshore Angola where we built a detailed tilted transversely isotropic (TTI) model over an area of more than 8000 km 2 with very limited well control using different types of geological constraints. We incorporate general knowledge...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1494
... gas prediction gamma ray log basin correlation study area frackability well control upstream oil & gas artificial intelligence limestone barnett shale probabilistic neural network reservoir characterization Ma Neu Sum Sum The unco the orga the proc core the foun TOC incr gene cont...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-2454
... well, to calibrate the migration. We find that our approach produces a much improved velocity model in only a few iterations. fwi frequency estimation wave-equation depth migration reservoir characterization geophysics waveform inversion iteration well control gradient migration...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-4124
... correlation reservoir characterization underground blow extension annular pressure drilling velocity change annual international meeting timeshift correlation technique well control shallow gas migration correlation finite difference modeling Monitoring shallow gas migration by refraction...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-0473
..., this is not always possible in frontier basins where little or no well control is available. This study documents the wavelet extraction process for a pre-drill AVO inversion for an offshore exploratory well in Eastern Canada. The methodology implemented in this case combines statistical wavelet estimation methods...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-4113
... structure model well control mexico example end member model henry zollinger pony field upstream oil & gas seg seg denver 2010 seismic velocity sensitivity analysis velocity sensitivity analysis hess corporation steve checkle interval velocity velocity model seismic data Seismic...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1591
... with the knowledge of geology from extensive well control in the area. Introduction SOM (Kohonen, 2001) clusters data such that the statistical relationship between multidimensional data is converted into a much lower dimensional latent space that preserves the geometrical relationship among the data points...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2294
.... The second group is interpreted to be due to contrasts in lithology and/or porosity of the Nisku Formation. This interpretation is supported by constraints provided by well control and by seismic modeling. Finally, our analysis has identified favorable low-impedance, potentially high-porosity, locations...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-0237
... were performed and compared on a 3D seismic survey from Alberta, Canada with extensive well control. For each of these flows, Ostrander gathers at key wells, AVO attributes, and their ties to 29 wells were examined. The interpolation PSTM flow prior to AVO inversion produced the best correlation...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-1735
... Summary We present an inversion methodology using a combination of prestack waveform inversion and simultaneous inversion of amplitude-variation-with-offset data (simultaneous AVO inversion). In this approach, we run prestack waveform inversion at well controls and other sparse locations away...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-0408
... of 2D seismic and surface geology. A 140-mile 2D seismic database was reprocessed and interpreted using balanced cross-sections developed from the seismic data. Data from 2 wells drilled by Chevron in 1967 and 1981 were the only Navajo well control in the area. That sparse well control established...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-0413
... will receive the same static treatment as the seismic survey. Firstly, we built an initial isotropic velocity model, using existing well control and time horizon maps consistent with the lithology column in Figure 3. Secondly, we estimated the Thomsen’s delta parameter (Figure 4) from the mismatches between...

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