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US 6,230,804 B1Granted
Stress resistant cement compositions and methods for using same
AssigneeBJ Services Company
InventorsDan T. Mueller, Virgilio G. Boncan, Jimmy P. Dickerson
Life of this patent
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Abstract
Aluminum silicate and/or fibrous mineral-containing cement compositions for cementing wellbores in high stress environments, such as for cementing multi-lateral completions. The cement compositions typically comprise a mixture of a reactive aluminum silicate and/or fibrous mineral such as wollastonite, and may include one or more other additives. The cement compositions may be used to produce set cements offering improved compressive strength, flexural strength, and/or tensile strength over conventional cement compositions.
Claims6
A method of cementing within a wellbore, comprising:
- mixing hydraulic cement and wollastonite with an aqueous-based fluid to form a cement slurry;
- each of said hydraulic cement and said wollastonite materials being added and mixed in at least one of a batch mix cement slurry mixing process or a continuous mix cement slurry mixing process;
- then
- introducing said cement slurry into a wellbore;
- and
- allowing said cement slurry to set within said wellbore;
- wherein the hydraulic cement present in said cement slurry consists essentially of Portland cement.
4 more elements
Dependencies are inferred from the claim text.