Abstract
We share a case study from Hydraulic Fracturing Test Site (HFTS) located in the Permian-Delaware Basin in United States. We highlight various distributed acoustic surveys conducted at the site over time which provide insights into cluster level efficiencies and their relationship with perforation efficiencies for test site wells. We use observations from novel Rayleigh frequency shift technique (DSS-RFS) to understand strain change during well shut-in and flow periods as part of pressure interference tests. We have observed a strong relationship between perforation and cluster efficiencies as well as independent far-field observations based on core-through studies which suggest that perforation efficiency is key to optimizing fracture stimulation in horizontal well laterals. Finally, observations from DSS-RFS surveys provide insights into clusters along the wellbore where the drainage or productivity may have been sub-optimal and are likely candidates for re-stimulation or other approaches to be implemented in the future.
Published Version
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