Biodegradable retarder for cementing applications
AssigneeHalliburton Energy Services, Inc.
InventorsAshok K Santra, B. Raghava Reddy, D. Chad Brenneis
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Abstract
Cement compositions comprising carboxylated inulin and methods of using the same to cement a workspace. In one embodiment, a method of cementing includes providing a cement composition comprising a carboxylated inulin, for example, in a subterranean formation. The method further includes allowing the cement composition to set. In some embodiments, the cement composition has a thickening time of from about 2 hours to about 11 hours. In other embodiments, the cement composition has a viscosity that is about constant for a period of time after the cement composition is placed.
Claims19
A cement composition comprising cement and a carboxylated inulin, wherein the cement composition has a thickening time of from about 2 hours to about 11 hours at temperatures up to about 280° F.
A cement composition comprising a cement and a carboxylated inulin and having a free water separation of from about 0.0 to about 2 wt.% of the cement composition at temperatures up to about 280° F., wherein the cement composition has a thickening time of from about 2 hours to about 11 hours at temperatures up to about 280° F.
Dependencies are inferred from the claim text.