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Numerical solution of sand transport in hydraulic fracturing

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6678575
The results are presented of a numerical method developed for sand transport computations in hydraulic fracturing. In this method, such factors as fluid leak-off, its effect in increasing the proppant concentration, and the consequent decrease in the sand-settling velocity are taken into consideration. The study shows that in the majority of hydraulic fractures, the deposited sand has an irregular shape. For low viscosity fluids, the bed buildup is close to the well bore. The deposited sand can soon reach equilibrium height. For high viscosity fluids, the sand is usually in perfect transport and covers a large portion of the created fracture surface area. For medium viscosity fluids, the carrying of sand depends on particle size. Small particles are almost in perfect transport while coarser sizes settle into a bed. This results in very irregular bed shapes. (10 refs.)
Research Organization:
CONF-750924--
OSTI ID:
6678575
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-5636
Country of Publication:
United States
Language:
English