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Keywords: input parameter
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584210
... exploration geophysicist 10 rock sample structural geology fracture aperture input parameter synthetic image hessian deformation Fracture detection and property estimation in microCT images Omar Alamoudi* and Nicola Tisato, The University of Texas at Austin, Jackson School of Geosciences, Department...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215234
... parameters such as porosity result from strain changes in mechanics. Our active subspace strategy finds that the coupling is essentially one way. Only the flow parameters impact the fluid pressure output whereas input parameters to both fluid flow and mechanics are important for the displacement...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214231
... visual insight into safety distances for shear failure of pre-existing faults, as well as a sensitivity analysis of the importance of uncertainties in all geomechanical input parameters. Sensitivities are obtained by Monte Carlo sampling of the parameter space, thus including their uncertainties...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214237
... approach allows us to evaluate uncertainty range of modelled anisotropic parameters calibrated with standard measurable input parameters. The result suggests that the modeled anisotropy parameters are significantly affected by the stiffness of clay mineral. Considering all possible input parameters...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216155
... international exposition suction upstream oil & gas swcc reservoir characterization inversion scheme geophysical parameter soil-water characteristic curve fredlund input parameter inversion geophysics shear strength confidence region swcc inversion suzaki Beale , E. , 1960...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996324
... Optimization Challenge benchmark dataset introduced in 2017, ensuring reproducibility of the presented analysis. Presentation Date: Tuesday, October 16, 2018 Start Time: 1:50:00 PM Location: Poster Station 22 Presentation Type: Poster reservoir characterization input parameter multiphysic response...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17783083
... by Simms and Morgan (1992) to systematically resolve the optimum number of layers. The first step is to run a fixed layer thickness inversion. Then, we use the outcome of the first inversion to determine the optimum number of layers as an input parameter for the second step which is a variable-thickness...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13974370
... characterization implementation hydraulic fracture input parameter seg seg international exposition fracture geometry fracture model fracture eaton upstream oil & gas fracture propagation evolution Advani , S. H. , T. S. Lee , and H. Moon , 1990 , Energy considerations...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0455
... for dyke-like sources have been developed. The input parameters for the formulae are obtained the Signum-transformed anomalies. This paper is an application of the above described methodology to synthetic and field data. Method The Signum transform of a function is given by: = , 0 = 0 (1...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1251
... inputs to model outputs, and accurately interpolating model predictions to untried input parameters are meant to instill confidence that a given simulation has some predictive capability. Such characterizations of uncertainties typically require an ensemble of runs from the computer model where each run...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-0454
.... excitation frequency slowness peak excitation frequency basic input parameter diameter frequency filter shear wave frequency well logging modal analysis shear slowness input parameter upstream oil & gas array processing log analysis filter band coefficient borehole diameter polynomial...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-2742
... ABSTRACT Uncertainty Quantification using Polynomial Chaos (PC) expansions is a method for determining the sensitivity of the output from any type of modeling program to uncertainty in its input parameters. The intuition behind the technique is similar to the intuition of Fourier...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2075
... Basin belies its structural complexity. realization fracture estimate fracture effectiveness seg seg denver 2010 permeability microseismic event input parameter williston basin fracture model low magnitude orientation fracture network upstream oil & gas amplitude reservoir...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-1965
... variation total porosity international exposition upstream oil & gas reservoir characterization thomas-stieber model input parameter interpretation sand property lamination structural geology artificial intelligence sand fraction seg houston 2009 posterior distribution...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-2984
... time lapse critical reflection sensitivity overburden reservoir characterization fluid substitution deltav geomechanical effect critical reflection velocity contrast contribution variance input parameter variation reflection time lapse perturbation Time lapse critical reflection...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-0174
... or assumed input parameters. We find that, even for relatively tight distributions of input parameters, when gas is substituted for brine using Gassmann s equations, predicted P-wave velocities may exhibit a very wide range of possible values. This range may be larger than the expected change in velocity...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-0204
... characterization soft rock input parameter upstream oil & gas equation hydrocarbon stanford university reflectivity Sensitivity studies in forward AVO modeling Madhumita Sengupta*, Stanford University, Chandra Rai, and Carl Sondergeld, Amoco. Summary AVO is commonly used as an exploration tool...
Proceedings Papers

Paper presented at the 1991 SEG Annual Meeting, November 10–14, 1991
Paper Number: SEG-1991-0299
... network paradigm em subsurface image machine learning processing element subsurface image input parameter output parameter Comparison of Accuracy and Sensitivity of Neural Network Parameter-Estimation Paradigms for EM Subsurface Images Mary M. Pouiton, Univ. of Arizona CM1.5 SUMMARY...
Proceedings Papers

Paper presented at the 1984 SEG Annual Meeting, December 2–6, 1984
Paper Number: SEG-1984-0758
... ABSTRACT No preview is available for this paper. input parameter optical filter data quality output fk attenuation off-spread noise triangular waveform portability vsp data probability value upstream oil & gas fk transform reservoir characterization inverse transform...

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