CEMENTING COMPOSITION COMPRISING WITHIN UN-REACTED CEMENT
First Claim
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1. A cementing composition for use in oilfield application, comprising a cement, an emulsion and water;
- wherein emulsion allows an amount of cement to be left un-hydrated when the cement is set; and
allows said amount of un-hydrated cement to become hydrated when the set cement is damaged.
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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.
19 Citations
24 Claims
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1. A cementing composition for use in oilfield application, comprising a cement, an emulsion and water;
- wherein emulsion allows an amount of cement to be left un-hydrated when the cement is set; and
allows said amount of un-hydrated cement to become hydrated when the set cement is damaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 14, 15, 16, 21, 22, 23, 24)
- wherein emulsion allows an amount of cement to be left un-hydrated when the cement is set; and
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9-12. -12. (canceled)
- 17. A method of cementing a well comprising injecting a cement composition into a wellbore, the cement composition comprising a cement, an emulsion comprising an aqueous suspension of latex particles, and swellable particles, wherein the swellable particles are swellable with hydrocarbon and/or water.
- 19. A method of cementing a well comprising injecting a cement composition into a wellbore, the cement composition comprising a cement, an emulsion comprising an aqueous suspension of latex particles, and flexible particles to improve toughness and to prevent crack creation and propagation.
Specification