Optimum Fractures in High-Permeability Formations

摘要

This paper describes an analytical model that (1) designs the pumping schedule of tip-screen-out (TSO) (frac-pack) fractures for high-and low-permeability formations, (2) estimates the res- ervoir production, and (3) determines the optimum propped length using the net present value concept. Sensitivity studies show the influence of the proppant permeability to propped fracture width. Sensitivity runs also show the influence of drainage area (and Formation permeability) to optimum of fracture length. A field ex- Ample demonstrates the benefits of an appropriate fracture design.