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US 10,766,813 B2Granted
Nanocellulose foam stabilizing additive
AssigneeHalliburton Energy Services, Inc.
InventorsWilliam Cecil Pearl, Jr., Samuel J. Lewis, Jeffery Dwane Karcher
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Abstract
A variety of systems, methods and compositions are disclosed, including, in one method, providing a foamed cement composition comprising a hydraulic cement, water, a foaming surfactant, a gas, and a nanocellulose foam stabilizing additive; placing the foamed cement composition in a selected location; and allowing the foamed cement composition to set.
Claims20
A method of cementing comprising:
- providing a foamed cement composition comprising:
- a hydraulic cement,
- water,
- a foaming surfactant,
- a gas, and
- a nanocellulose foam stabilizing additive;
- placing the foamed cement composition in a selected location;
- and
- allowing the foamed cement composition to set,
- wherein the nanocellulose foam stabilizing additive comprises a nanofibril cellulose.
7 more elements
A foamed cement composition comprising:
- a hydraulic cement,
- water,
- a nanocellulose foam stabilizing additive,
- a foaming surfactant, and
- a gas;
- wherein the nanocellulose foam stabilizing additive comprises a nanofibril cellulose.
3 more elements
A cementing system comprising:
- a cement composition comprising:
- a hydraulic cement,
- water,
- a nanocellulose foam stabilizing additive, wherein the nanocellulose foam stabilizing additive comprises a nanofibril cellulose,
- a foaming surfactant, and
- a gas;
- mixing equipment capable of mixing the cement composition;
- and
- pumping equipment capable of delivering the cement composition into a wellbore.
6 more elements
Dependencies are inferred from the claim text.