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.

For this month’s Office Hours, we have a review from ResFrac COO, Garrett Fowler, of a paper he presented at last week’s URETEC 2023, “A Success Story: Screening and Optimizing Refracs in the Eagle Ford,” co-authored with Chesapeake.

For Office Hours this month, we enjoyed a presentation from Well Data Labs’ Karen Olson, reviewing her case study from HFTS-1 Phase 3, where she used SWPM to estimate volume to first response for different designs and ResFrac’s automated history matching capability to match ‘volume to first response’ of the different designs.

This presentation discusses a model to simulate the behavior of particle-laden slurry in a horizontal perforated wellbore with the goal of quantifying particle distribution between perforations. There are two primary phenomena that influence the result. The first one is the non-uniform particle distribution within the wellbore’s cross-section and how it changes along the flow. The second phenomenon is related to the ability of particles to turn from the wellbore to a perforation. Mathematical model for each sub-problem is developed and calibrated independently against available data. Results of simulations for the multi-cluster geometry also agree well with the available laboratory and field scale experiments. The importance of the developed model can be summarized as follows. First of all, it allows to better understand the physical processes occurring in the wellbore, which in turn helps understanding sensitivities to problem parameters. Then, the model can be used to create perforation designs leading to nearly uniform proppant distribution between clusters. Finally, it can be (and will be) integrated into ResFrac to investigate the overall effect of the aforementioned non-uniform proppant distribution on the overall treatment efficiency.

For January Office Hours, we had a presentation from ResFrac CEO, Mark McClure, discussing his SPE paper, “Results from a Collaborative Parent/Child Industry Study: Permian Basin.”

For Office Hours this month, we had a presentation from ResFrac Director of User Success, Dave Ratcliff. He presented a Complex Economic Optimization workflow where he explains how to vary stage length, cluster count, and well spacing while keeping the perforation friction drop constant to maximize NPV/Section. This is part 2 of a 2-part series.

For Office Hours this month, we had a presentation from ResFrac Director of User Success, Dave Ratcliff. He presented a Complex Economic Optimization workflow where he explains how to vary stage length, cluster count, and well spacing while keeping the perforation friction drop constant to maximize NPV/Section. This is part 1 of a 2-part series, we will continue the discussion in an upcoming Office Hours.