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US 7,258,738 B2Granted
Cementing compositions including salts
AssigneeHalliburton Energy Services, Inc.
InventorsSamuel J. Lewis, Michael J. Szymanski
Life of this patent
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Abstract
Disulfonate salts of 2,4-pentanedione and methods for making such salts are described. The disulfonate salts are useful as cement dispersants. Cement compositions including such salts, methods for making cement compositions including such salts, and methods for performing cementing operations using such cement compositions are also described.
Claims22
A cement composition comprising cementitious material;
- water selected from the group consisting of fresh water, unsaturated salt solution, brines, seawater and saturated salt solutions;
- and a disulfonate salt of 2,4-pentanedione.
A cement composition comprising cementitious material;
- water selected from the group consisting of fresh water, unsaturated salt solution. brines, seawater and saturated salt solutions;
- and a disulfonate salt of 2,4-pentanedione,
- wherein the disulfonate salt of 2,4-pentanedione is selected from the group consisting of 2,4-pentanedione-1,5-sodium disulfonate;
- 2,4-pentanedione-1,5-potassium disulfonate;
- 2,4-pentanedione-1,5-magnesium disulfonate;
- 2,4-pentanedione-1,5-barium disulfonate;
- 2,4-pentanedione-1 ,5-ammonium disulfonate;
- 2,4-pentanedione-1,5-calcium disulfonate;
- and 2,4-pentanedione-1,5-cesium disulfonate, and is present in an amount of from about 0.01% to about 5% by weight of the cementitious material.
6 more elements
Dependencies are inferred from the claim text.