Manufacture of strong, lightweight, hollow proppants

Details Manufacture of strong, lightweight, hollow proppants Manufacture of strong, lightweight, hollow proppants

2011-08-30

2011-08-30

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Specific propping feature

Reexamination Certificate

active

08006759

ABSTRACT:
An ultra strong, hollow sintered, impervious, metallic shell for use in structural applications including proppants for hydraulic fracturing. The shell is made of a maraging steel, low alloy steel, or stainless steel with a crush strength of about 3,000 psi or greater and a density of about 0.6 g/cm3to about 2.5 g/cm3.

REFERENCES:
patent: 6148911 (2000-11-01), Gipson et al.
patent: 2006/0124304 (2006-06-01), Bloess et al.
patent: 2007/0166541 (2007-07-01), Smith et al.

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