Low carbon footprint expansive composition and methods of making and using same
AssigneeHalliburton Energy Services, Inc.
InventorsGunnar Lende, Rahul Jadhav, Thomas Jason Pisklak
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Abstract
Disclosed herein is a composition comprising a cementitious material, a pozzolanic material, aplite, and an aqueous fluid. Also disclosed herein is a method of servicing a wellbore penetrating a subterranean formation, comprising: placing the composition into the wellbore; and allowing the composition to form a set cement. The composition can develop suitable mechanical properties and permeability after setting in a wellbore and be expansive.
Claims31
A composition comprising (i) a blend of Portland cement and Trass flour and (ii) an aqueous fluid,
- wherein the Trass flour is present in the composition in an amount from about 40% by weight of the blend (BWOB) to about 70% BWOB,
- wherein the composition has a positive expansion upon setting,
- wherein the Portland cement is present in the composition in an amount from about 30 to about 60% BWOB, and
- wherein the composition has a 14-day circumferential change in a range of from about 0.01% to about 2% at a temperature in a range of from about 20° C./68° F. to about 150° C./302° F., when measured in a ring expansion test in accordance with test standard API 10B-5.
A composition comprising (i) a blend of Portland cement and fly ash and (ii) an aqueous fluid,
- wherein the fly ash is present in the composition in an amount from about 40% by weight of the blend (BWOB) to about 70% BWOB,
- wherein the composition has a positive expansion upon setting,
- wherein the Portland cement is present in the composition in an amount from about 30 to about 60% BWOB, and
- wherein the composition has a 14-day circumferential change in a range of from about 0.01% to about 2% at a temperature in a range of from about 20° C./68° F. to about 150° C./302° F., when measured in a ring expansion test in accordance with test standard API 10B-5.
A composition comprising (i) a blend of Portland cement and aplite and (ii) an aqueous fluid,
- wherein the aplite is present in the composition in an amount from about 40% by weight of the blend (BWOB) to about 70% BWOB,
- wherein the composition has a positive expansion upon setting,
- wherein the Portland cement is present in the composition in an amount from about 30 to about 60% BWOB, and
- wherein the composition has a 14-day circumferential change in a range of from about 0.01% to about 2% at a temperature in a range of from about 20° C./68° F. to about 150° C./302° F., when measured in a ring expansion test in accordance with test standard API 10B-5.
Dependencies are inferred from the claim text.