Patent Number: 8,796,188

Title: Light-weight proppant from heat-treated pumice

Abstract: A process for forming a strong, low-density proppant, which process includes heating pumice particulates, or shaped agglomerates thereof, so as to form heat-treated pumice particulates, or heat-treated, shaped pumice agglomerates, having an apparent density of 2.4 or less and a crush resistance of no more than 10% fines at 4000 psi. Proppants, and well treatment fluids comprising proppants, meeting these characteristics and processes for treating subterranean formations using fluids which include such proppants are also described.

Inventors: Pisklak; Thomas J. (Cypress, TX), Stevens, Jr.; Richard F. (Sugar Land, TX), Qu; Qi (Spring, TX), Morillo; Elizabeth G. (The Woodlands, TX)

Assignee: Baker Hughes Incorporated

International Classification: C09K 8/528 (20060101); B29C 67/00 (20060101); C09K 8/74 (20060101); B05D 7/00 (20060101)

Expiration Date: 8/05/12018