Well Cementing with Water-Based Liquid Anti-Shrinkage Additives
AssigneeHalliburton Energy Services, Inc.
InventorsThomas Singh Sodhi, Kyriacos Agapiou, Aleksey Kolasnikov, Sam J. Lewis
Life of this patent
Estimating the term…
Abstract
A method including introducing a well cementing composition into a wellbore, the cementing composition including a pumpable slurry of cement comprising a liquid anti-shrinkage additive including: an aqueous base fluid; a calcined magnesium oxide; and an anti-hydration agent; and allowing at least a portion of the cementing composition to harden. A liquid anti-shrinkage additive for cement including an aqueous base fluid, a calcined magnesium oxide, and an anti-hydration agent.
Claims23
A method comprising:
- introducing a cementing composition into a subterranean formation, said cementing composition comprising:
- a pumpable slurry of cement comprising:
- a liquid anti-shrinkage additive comprising:
- an aqueous base fluid;
- a calcined magnesium oxide;
- and
- an anti-hydration agent;
- and
- allowing at least a portion of the cementing composition to harden.
-10. (canceled)
An aqueous liquid anti-shrinkage additive for cement comprising:
- an aqueous base fluid;
- a calcined magnesium oxide;
- and
- an anti-hydration agent.
-21. (canceled)
-32. (canceled)
A cementing system comprising:
- an apparatus including a mixer and a pump to place a cement composition in a wellbore, said cement composition comprising:
- a pumpable slurry of cement comprising a liquid anti-shrinkage additive, the additive comprising calcined magnesium oxide and an anti-hydration agent.
Dependencies are inferred from the claim text.