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Keywords: variance
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201727-MS
... upgridding and upscaling approaches developed for clastic reservoirs perform less well. This has led to the development of a novel "Distance Based" upgridding technique which we combine with "Diffuse Source" upscaling to successfully simulate such models. We replace previously developed variance-based...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196063-MS
... and production rates are subjected to multiresolution analysis using the wavelet transform to determine the detail coefficients. The variance of the detail coefficients is then computed and is ready to be processed using various signal processing techniques. Signal processing techniques such as cross-correlation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196106-MS
... sg method vertical axis synthetic model Reservoir Characterization simulation method variance well log data Control Zone society of petroleum engineers Value distribution Introduction Originating from pioneering works of Matheron in Paris School of Mines [ 1 , 2 ], geostatistics...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187162-MS
... was needed. machine learning portfolio optimization Artificial Intelligence Portfolio analysis Upstream Oil & Gas modeling variance asset and portfolio management portfolio project selection constraint selection Implementation investment opportunity portfolio process capital...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187040-MS
... field examples. real time system Artificial Intelligence pressure transient analysis drawdown variance stability Upstream Oil & Gas pressure point testing time pressure transient testing formation tester Specialist formation testing proett job planning workflow Tool technology...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170696-MS
... Engineering completion engineering status strategic planning and management weight growth variance full design specification good engineering topsides weight predictability contingency dry weight project team project management weight contingency fel 2 schedule-driven project offshore...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170819-MS
... and capillary pressure in the rock fracture as a function of the effective stress. The stress-dependent aperture distribution data demonstrates that increasing stress results in two effects: (1); the mean aperture will decrease; (2); the variance of aperture distribution will increase. Experimental results...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170761-MS
... structural uncertainty machine learning history matching parameterization Artificial Intelligence displacement variance geometry grid reservoir simulation grid deformation multiplier Risk analysis workflow application error map deformation reservoir model structural uncertainty integration...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166124-MS
... production upstream oil & gas production gain formation damage reuse hydraulic fracturing gas production variance production data fresh water gupta mccracken Introduction Importance of fracturing in Canada The subject of hydraulic fracturing is a hot button with polarizing effects...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166449-MS
... principal component variance similarity ranking machine learning upstream oil & gas criteria similarity function imputation target reservoir database cluster analysis information analogous reservoir identification reservoir similarity similarity index multivariate analysis original...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-156173-MS
... the most optimum method for gravel packing in future Baram South wells. A statistical tool called Taguchi Method for Design of Experiment and Analysis of Variance (ANOVA) were employed to analyze impact of the well deviations, gravel packing techniques and permeability variation on skin factor...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-133299-MS
... location variance society of petroleum engineers new area Introduction Shale gas plays are becoming increasingly important in the U.S. and perhaps in the world. Shale gas plays possess some unique characteristics, which is not typical for conventional gas reservoirs. One of the relevant...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124882-MS
... radius. As the variance of the particle size increases, so does the width of the pore size distribution. As the hydrate saturation increases, the permeability of the sediment decreases. This decrease follows Civan's correlation with a β of 0.75. The relative permeability becomes increasingly dependent...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116173-MS
... drilling efficiency, thus reducing drilling costs for the operator. This is a significant step change in PDC cutter technology, dramatically increasing fixed cutter drill bit performance. bit selection variance aeg test bit Upstream Oil & Gas test bit cutter torque bit design AEG cutter...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116087-MS
... with successful application of in-fill well program. Reservoir Characterization geologic modeling production monitoring Drillstem Testing geological modeling Reservoir Surveillance productivity index drillstem/well testing variance production data procedure histogram commingled zone kh value...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-109943-MS
... to as step-size (of the Markov chain) and is a random variable, sampled from a certain distribution, typically Gaussian, with zero mean and unit variance. Herewith, the samples were taken from the prior distribution. Generate a random number u from a uniform distribution, ( )1,0U . Check transition...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103083-MS
... in the future. Reservoir Characterization Fluid Dynamics variance Modeling & Simulation heterogeneity grid cell geologic modeling flow in porous media bivariate distribution facies geological modeling Alberta probability field permeability variability procedure Permeability Modeling...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103268-MS
... results (for means and variances of "packages" of meter-scale beds), geologic modeling (for a framework and priors), rock physics (to relate seismic to flow properties), and geostatistics (for spatially correlated variability). These elements are combined in a Bayesian framework. The proposed workflow...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102645-MS
... The measurement variance shown in Table 1 is high and reflects the necessity of measuring a sufficient number of specimens. By randomly selecting a few data points from each sample in Figure 11 , it is possible to draw conclusions that contradict the data contained in Table 1 . Comparing...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102920-MS
... when estimating the average parameter values, and further within parameter change detections. Estimated parameters are only used in the hypothesis testing or calculation of average values if they have variance within the confidence limits in the table above. This procedures will be described next...

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