Cement compositions comprising strength-enhancing lost circulation materials and methods of cementing in subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorsWilliam J. Caveny, Rickey L. Morgan
Life of this patent
Estimating the term…
Abstract
Cement compositions comprising a strength-enhancing lost circulation material, and methods for cementing using such cement compositions are provided. Exemplary embodiments of the cement compositions comprise cement, water, and a strength-enhancing lost circulation material. Optionally, other additives suitable for inclusion in cement compositions may be added.
Claims45
A method of using a strength-enhancing lost circulation material to reduce the loss of circulation of a cement composition in a subterranean formation comprising the steps of:
- providing a cement composition comprising cement, a strength-enhancing lost circulation material, and water, wherein the cement is selected from the group consisting of Portland cements, pozzolana cements, gypsum cements, soil cements, calcium phosphate cements, high alumina content cements, silica cements, or high alkalinity cements;
- placing the cement composition into a subterranean formation;
- reducing the loss of circulation of the cement composition using the strength-enhancing lost circulation material of sufficient size to reduce the loss of circulation of the cement composition;
- and
- allowing the cement composition to set.
A method of cementing in a subterranean formation comprising the steps of:
- providing a cement composition comprising:
- cement, vitrified shale, and water, wherein the cement is selected from the group consisting of Portland cements, pozzolana cements, gypsum cements, soil cements, calcium phosphate cements, high alumina content cements, silica cements, or high alkalinity cements;
- placing the cement composition into a subterranean formation;
- using the vitrified shale to reduce the loss of cement composition into the subterranean formation;
- and
- allowing the cement composition to set.
Dependencies are inferred from the claim text.