Process of well cementing in cold environment

Details Process of well cementing in cold environment Process of well cementing in cold environment

2005-10-18

2005-10-18

Kreck, John (Department: 3673)

Wells

Processes

Cementing, plugging or consolidating

C166S293000, C166S901000, C106S713000

Reexamination Certificate

active

06955220

ABSTRACT:
The present invention provides improved well cementing methods for use in cold environment, where the circulating temperature of the cement is typically within the range of 5 to 20° C. The improved well cementing methods include forming compositions that are essentially comprised of an aqueous fluid, a hydraulic cement binder and a set-accelerating admixture comprising an alkali or alkaline earth metal nitrate and an alkali or alkaline earth metal nitrite.

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PolarSet® Material Safety Data Sheet Dec. 4, 2001.

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