C&P: "Minimizing and Eliminating the Overflushing of Fracture Stimulation Treatments in Horizontal Wells – From Theory to Practice"
Since the advent of multi-staged fracture stimulation treatments in horizontal wellbores, the challenge of placing proppant in hydraulic fractures while leaving the wellbore free of proppant material for deployment of mechanical isolation equipment such as frac balls and composite plugs has necessitated the practice of over-displacing each propped treatment with a clean flush fluid. Despite concerns with this impacting the near-wellbore proppant pack, satisfactory well production results in a variety of formations have allowed the practice to live on. However, many questions remain about this practice, including how much are we limiting productivity, how is cluster efficient affected, and how much complexity and unpredictability is being built into an already complicated system? This presentation will discuss turbulent pipe flow theory for ensuring the total removal of proppant grains at lower injection rates, provide a summary of a field case study of over 200 stages successfully pumped with a minimized overflush strategy, and show a statistical analysis comparing production results from these wells to other wells in their field.
Norris Conference Centre- Westchase (Suite-102)
9990 Richmond Ave, South Bldg, Ste 102, Houston, TX,77042
Houston , Texas 77042