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An operator in the Permian Basin needed to find a way to revive an existing well while keeping operational and remediation costs low. The well had originally been drilled and completed with a traditional plug-and-perf completion method, but our customer needed a way to boost production by fracturing zones that had originally been bypassed.

For the solution, the operator asked Baker Hughes, a GE company (BHGE), to analyze well conditions and recommend alternative completion methods that would provide targeted stimulation for new and old perforations, as well as minimize tool trips to keep remediation costs low. BHGE recommended the OptiStriker™ straddle packer system that allows targeted fracturing of pay zones bypassed during the original completion, and refracturing of existing zones that are underperforming. The OptiStriker system is the first of its kind to use two mechanically resettable packers to isolate individual clusters and precisely deliver controlled treatment volumes in unconventional wells.

Download the PDF to read the full case study.

Challenges & Results
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Challenges

  • Stimulation of bypassed and underperforming frac zones in an existing vertical well
  • High remediation costs due to multiple tool trips
  • Frac screen outs resulting from pressure communication issues

Results

  • Reduced fluid requirements resulting in cost savings
  • Reduced flowback and disposal costs
  • Achieved rapid depth correlation
  • Reduced fluid and HHP requirements by more than 30% compared to traditional plug-and-perf methods
  • Minimized tool trips with the use of Optistriker sytem stimulating six zones in a single trip, using resettable packers at an average repositioning time of 38 minutes per stage
  • Greater packer placement reliability and quicker setup between stages – six times faster than traditional plug-and-packer method