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1. CA2579295 - CHEMICALLY BONDED PHOSPHATE CERAMIC SEALANT FORMULATIONS FOR OIL FIELD APPLICATIONS

Office Canada
Application Number 2579295
Application Date 24.08.2005
Publication Number 2579295
Publication Date 04.01.2007
Grant Number
Grant Date 06.07.2010
Publication Kind C
IPC
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
44
containing organic binders only
C09K 8/44
CPC
C04B 28/34
C04B 28/342
C09K 8/46
Y02W 30/92
Applicants THE UNIVERSITY OF CHICAGO
Inventors WAGH, ARUN S.
JEONG, SEUNG-YOUNG
MCDANIEL, RICHARD
Priority Data 60/607,123 03.09.2004 US
Title
(EN) CHEMICALLY BONDED PHOSPHATE CERAMIC SEALANT FORMULATIONS FOR OIL FIELD APPLICATIONS
(FR) FORMULATIONS D'ETANCHEITE EN CERAMIQUE DE PHOSPHATE A LIANT CHIMIQUE DESTINEES A DES APPLICATIONS DE CHAMPS DE PETROLE
Abstract
(EN)
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 %, KH2PO4 present 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 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.

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