Cementing composition comprising within un-reacted cement
First Claim
Patent Images
1. A method for cementing a subterranean well, comprising:
- (i) preparing a slurry comprising cement, water, and an emulsion; and
(ii) placing the slurry in the well,wherein the water-to-cement ratio is between 0.04 and 0.29 by weight, and the emulsion comprises a oil in water emulsion whose oil-to-water ratio is higher than 50% by weight, or a water-in-solvent emulsion.
0 Assignments
0 Petitions
Accused Products
Abstract
The invention provides a cementing composition for use in oilfield application, wherein a significant amount of cement is left intentionally un-hydrated when the cement is set; such that said amount of un-hydrated cement becomes hydrated when the set cement is damaged.
-
Citations
4 Claims
-
1. A method for cementing a subterranean well, comprising:
-
(i) preparing a slurry comprising cement, water, and an emulsion; and (ii) placing the slurry in the well, wherein the water-to-cement ratio is between 0.04 and 0.29 by weight, and the emulsion comprises a oil in water emulsion whose oil-to-water ratio is higher than 50% by weight, or a water-in-solvent emulsion. - View Dependent Claims (2, 3, 4)
-
Specification