Computational fluid dynamics flow comparison between openhole sleeve and plug-and-perf completion in a hydraulic fractured horizontal well

Multi-stage hydraulic fracture completions in horizontal wells have facilitated economic development of natural gas from unconventional and tight gas reservoirs.Industry has relied on two horizontal multi-stage completion technologies: cemented and perforated liner or Plug-and-perf method and Openhole Sleeve Multi-stage method. Each method has its own advantages and disadvantages. However, one of the most important questions is which method yields better gas production?;Computation fluid dynamics (CFD) is a powerful tool for solving complex fluid flow problems. In well completion design, CFD plays a significant role aiding the completion engineers on making decision on well completion methods.;In this study, a three-dimensional CFD model of a horizontal well with a single transverse fracture has been constructed to compare Plug-and-perf versus Openhole sleeve multi-state completion methods using steady state natural gas production and no formation damage. The results are shown in a relationship of dimensionless fracture conductivity and fold of increase. Parametric studies have been performed varying horizontal permeability ratio, penetration ratio and propped fracture width.;Considering only the effect from the completion method and without the presence of the natural fractures, results of this study indicate a well completed with Openhole Sleeve Multi-stage method does produce more than a well completed with the Plug-and-perf method, but the difference in production is substantially less than previous publications indicate. The results from this study were compared with the previous study using the two-dimensional models by Augustine (2011).