Lightweight cement slurry and method of use
First Claim
1. A foamed hydraulic cement slurry comprising an aqueous slurry of hydraulic cement, an entrained gas in the form of multiple, discrete bubbles and a foaming agent represented by the formula
wherein X is chloride, bromide, iodide or hydroxyl, R is an aliphatic, hydrocarbyl radical comprising from 8 to 16 carbon atoms and R'"'"' is, independently each occurrence, an alkyl radical of one to three carbon atoms or hydroxyethyl, and the sum of the carbon atoms in R and all R'"'"' is not greater than about 20.
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Accused Products
Abstract
A foamed, cement slurry comprising an aqueous hydraulic cement slurry containing gas as discrete entrained bubbles and a specific quaternary ammonium compound as a foaming agent; and a process of plugging a subterranean void by emplacing the foamed slurry in the subterranean void and then permitting the foamed slurry to therein harden.
58 Citations
30 Claims
- 1. A foamed hydraulic cement slurry comprising an aqueous slurry of hydraulic cement, an entrained gas in the form of multiple, discrete bubbles and a foaming agent represented by the formula
- space="preserve" listing-type="equation">R(R'"'"'--).sub.3 N.sup.+ X.sup.-
wherein X is chloride, bromide, iodide or hydroxyl, R is an aliphatic, hydrocarbyl radical comprising from 8 to 16 carbon atoms and R'"'"' is, independently each occurrence, an alkyl radical of one to three carbon atoms or hydroxyethyl, and the sum of the carbon atoms in R and all R'"'"' is not greater than about 20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
Specification