Zero free water cement composition and method

C - Chemistry – Metallurgy – 04 – B

Patent

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261/67, 31/8

C04B 7/32 (2006.01) C04B 22/12 (2006.01) C09K 8/46 (2006.01)

Patent

CA 1156688

ABSTRACT OF THE DISCLOSURE A well cementing composition and method of cementing well bores are disclosed in which a slurry is first pre- pared utilizing cement, mixing water, and aluminum hydroxy- chloride in the range of 0.1-4.5 weight percent based on the dry weight of cement. The slurry thus prepared when pumped into place in the well bore has zero free water con- tent thereby reducing the bridging or channeling in the ce- ment column which is associated with free water formation.

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