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US 11,597,863 B2Granted
Methods of cementing a wellbore
AssigneeBaker Hughes Oilfield Operations LLC
InventorThomas S. Sodhi
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Abstract
A method of cementing a wellbore comprises combining a liquid additive with a cement slurry, the liquid additive comprising a metal gluconate, an alkali metal or an alkaline earth metal salt, an alkanolamine, a dispersant, and water to form a cementing composition; injecting the cementing composition into the wellbore; and allowing the cementing composition to set.
Claims6
A method of cementing a wellbore, the method comprising:
- combining a liquid additive with a cement slurry, the liquid additive comprising, based on a total weight of the liquid additive, 1 to 3 wt. % of iron (II) gluconate hydrate, 8 to 12 wt. % of lithium chloride, 3 to 5 wt. % of triethanolamine, 2 to 4 wt. % of a dispersant, and 75 to 85 wt. % of water to form a cementing composition;
- injecting the cementing composition into the wellbore;
- and
- allowing the cementing composition to set forming a cement, wherein an overall compressive strength of the cement is increased by 30% as compared to that of a reference cement formed from the same cement slurry without the liquid additive.
1 more element
Dependencies are inferred from the claim text.