For this month’s Office Hours, we have a presentation on “Sampling Schemes for Sensitivity Analysis” by ResFrac Senior Reservoir and Completions Engineer, Chris Ponners. Chris discusses the details of the various sampling schemes provided in ResFrac’s sensitivity analysis workflows, reviews the theory and implementation of each sampling scheme, the advantages and disadvantages of different approaches, and how to pick a sampling scheme to best fit a goal of a sensitivity analysis series.

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01:13 // ResFrac SA Sampling Schemes

02:02 // Sensitivity Analysis Workflow

06:36 // Sampling Schemes Intro

08:35 // One-at-a-time Sampling

11:34 // Note: Symmetric Mapping

12:54 // Full Factorial Sampling

15:41 // Fractional Factorial Sampling

18:19 // Note: What is discrepancy?

20:29 // Uniform Random (Pseudorandom Monte Carlo)

22:14 // Latin Hypercube Sampling

24:18 // Sobol Sequence

24:18 // Sobol Sequence

25:30 // Box-Behnken Sampling

27:06 // Centered Composite Sampling

28:48 // Plackett-Burman Sampling

29:58 // User Defined Sampling

31:12 // Summary