Richard L Mcdaniel

US Patent:

7438755, Oct 21, 2008

Filed:

Aug 24, 2005

Appl. No.:

11/212087

Inventors:

Arun S. Wagh - Naperville IL, US
Seung-Young Jeong - Taejon, KR
Richard McDaniel - Crest Hill IL, US

Assignee:

UChicago Argonne, LLC - Chicago IL

International Classification:

C04B 12/02

US Classification:

106690, 106691

Abstract:

A sealant for an oil or geothermal well capable of setting within about 3 to about 6 hours at temperatures less than about 250 F. for shallow wells less than about 10,000 feet and deep wells greater than about 10,000 feet having MgO present in the range of from about 9. 9 to about 14. 5%, KHPOpresent in the range of from about 29. 7 to about 27. 2%, class C fly ash present in the range of from about 19. 8 to about 36. 3%, class F fly ash present in the range of from about 19. 8 to about 0%, boric acid or borax present in the range of from about 0. 39 to about 1. 45%, and water present in the range of from about 20. 3 to about 21. 86% by weight of the sealant. A method of sealing wells is disclosed as are compositions for very high temperature wells is disclosed as is a composition for treating oil field wastes.