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US 9,751,803 B2Granted
Calcium phosphate cement compositions comprising pumice and/or perlite and associated methods
AssigneeHalliburton Energy Services, Inc.
InventorsJeffery D. Karcher, D. Chad Brenneis, Lance E. Brothers
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Abstract
Methods and compositions are provided that related to cementing operations. Methods and compositions that include pumice and/or perlite as a replacement for fly ash.
Claims20
A cement composition comprising:
- calcium aluminate in an amount of about 15% to about 50% by weight of the cement composition;
- sodium polyphosphate in an amount of about 1% to about 20% by weight of the cement composition;
- perlite, wherein the perlite has a mean particle size of about 1 micron to about 100 microns;
- and
- water.
2 more elements
A cement composition comprising:
- calcium aluminate in an amount of about 15% to about 60% by weight of the cement composition;
- sodium polyphosphate in an amount of about 2% to about 20% by weight of the cement composition;
- perlite in an amount of about 15% to about 50% by weight of the cement composition, wherein the perlite has a mean particle size of about 1 micron to about 100 microns;
- a cement set retarder;
- and
- water.
3 more elements
Dependencies are inferred from the claim text.