Cement compositions and methods utilizing nano-hydraulic cement
AssigneeHalliburton Energy Services, Inc.
InventorCraig W. Roddy
Life of this patent
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Abstract
An exemplary method includes introducing a treatment fluid comprising nano-hydraulic cement into a subterranean formation. The treatment fluid may include a drilling fluid, a completion fluid, a stimulation fluid, a well clean-up fluid or a cement composition. Another example method comprises introducing a cement composition comprising nano-hydraulic cement, hydraulic cement, and water into a subterranean formation; and allowing the cementing composition to set in the subterranean formation. An example well treatment fluid comprises nano-hydraulic cement.
Claims23
A method of primary cementing in a subterranean formation comprising:
- introducing a cement composition comprising nano-hydraulic cementitious particles and water into the subterranean formation, wherein the water is present in an amount between about 33% to about 200% of the cement composition, wherein the nano-hydraulic cementitious particles have a mean particle size of between about 20 nanometers to about 100 nanometers, the nano-hydraulic cementitious particles being selected from the group consisting of a Portland cement, a pozzolanic cement, a gypsum cement, a soil cement, a calcium phosphate cement, a high-alumina content cement, a silica cement, a high-alkalinity cement, and any combination thereof;
- and
- allowing the cement composition to set in the subterranean formation by reaction of the nano-hydraulic cementitious particles and the hydraulic cement with the water to form a hardened mass in a space between the subterranean formation and a pipe string.
A method of primary cementing in a subterranean formation comprising:
- providing nano-hydraulic cementitious particles, selected from the group consisting of a Portland cement, a pozzolanic cement, a gypsum cement, a soil cement, a calcium phosphate cement, a high-alumina content cement, a silica cement, a high-alkalinity cement, and any combination thereof, wherein the nano-hydraulic cementitious particles have a mean particle size between about 20 nanometers to about 100 nanometers;
- wherein the nano-hydraulic cementitious particles are present in an amount of about 0.1% to 50% by weight of cementitious components;
- providing hydraulic cement having a mean particle size of greater than 1 micron;
- wherein the hydraulic cement is present in an amount of about 1% to 99% by weight of cementitious components;
- preparing a cement composition comprising the nano-hydraulic cementitious particles, the hydraulic cement, and water, wherein the water is present in an amount between about 33% to about 200% of the nano-hydraulic cement particles;
- introducing the cement composition into the subterranean formation;
- and
- allowing the cement composition to set in the subterranean formation by reaction of the nano-hydraulic cementitious particles and hydraulic cement with the water to form a hardened mass in a space between the subterranean formation and a pipe string.
Dependencies are inferred from the claim text.