Lightweight cement compositions and methods of cementing in subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorLance E. Brothers
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Abstract
The present invention provides lightweight cement compositions, and methods for cementing in a subterranean formation using such cement compositions. The cement compositions comprise hydrated lime, vitrified shale, and sufficient water to form a slurry. Optionally, other ingredients may be included in the compositions.
Claims33
A method of cementing in a subterranean formation comprising the steps of:
- providing a cement composition comprising:
- an unhydrated cement comprising hydrated lime and vitrified shale;
- and water;
- placing the cement composition into a subterranean formation;
- and allowing the cement composition to set.
A cement composition comprising:
- an unhydrated cement comprising hydrated lime and vitrified shale;
- and water.
A cement composition for subterranean applications wherein the cement comprises water and an unhydrated cement comprising hydrated lime and vitrified shale, and wherein the cement develops a 24 hour compressive strength of at least about 50 psi.
Dependencies are inferred from the claim text.