Consolidated proppants having high mechanical strength and...

Details Consolidated proppants having high mechanical strength and... Consolidated proppants having high mechanical strength and...

2011-08-23

2011-08-23

Kugel, Timothy J. (Department: 1765)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C166S286000, C166S295000, C166S305100, C507S221000, C507S219000, C507S234000, C528S010000

Reexamination Certificate

active

08003580

ABSTRACT:
A process for the preparation of hydrolytically and hydrothermally stable consolidated proppants is described, in which (A) a consolidating agent comprising (A1) a hydrolysate or precondensate of at least one functionalized organosilane, a further hydrolyzable silane and at least one metal compound, the molar ratio of silicon compounds used to metal compounds used being in the range of 10 000:1 to 10:1, and (A2) an organic crosslinking agent are mixed with a proppant and (B) the consolidating agent is cured at elevated pressure and elevated temperature.The consolidated proppants obtained have high mechanical strength.

REFERENCES:
patent: 2002/0016380 (2002-02-01), Hayashi et al.
patent: 2007/0158070 (2007-07-01), Endres et al.
patent: 2008/0103067 (2008-05-01), Schmidt et al.
patent: 196 20 818 (1997-11-01), None
patent: 10 2005 002 806 (2006-08-01), None
patent: 1 167 406 (2002-01-01), None
patent: 2005/073278 (2005-08-01), None
patent: 2006/077123 (2006-07-01), None
English Language Abstract of DE 196 20 818.
Brinker C. J. et al., Sol Gel Science—The Physics and Chemistry of Sol-Gel-Processing, (Academic Press, Boston San Diego, New York, Sydney 1990); pp. 108-115.

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