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US 11,959,013 B2Granted
Viscoelastic surfactant-based treatment fluids for use with metal oxide-based cements
AssigneeHalliburton Energy Services, Inc.
InventorsWaseem Abdulrazzaq, Ayoub Ibrahim Awaji, Siham Kamal Fatani, Jay Paul Deville
Life of this patent
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Abstract
In one embodiment, the methods include introducing a treatment fluid including an aqueous base fluid, at least one viscoelastic surfactant, a divalent salt, a metal salt; and a metal oxide into a wellbore penetrating at least a portion of a subterranean formation; and allowing the treatment fluid to at least partially set in the subterranean formation.
Claims17
A method comprising:
- introducing a treatment fluid comprising an aqueous base fluid, at least one viscoelastic surfactant, a divalent salt, magnesium sulfate heptahydrate (MgSO4·7H2O), and magnesium oxide (MgO) into a wellbore penetrating at least a portion of a subterranean formation;
- and
- allowing the treatment fluid to at least partially set in the subterranean formation,
- wherein the magnesium sulfate heptahydrate is present in a concentration of about 20% to about 35% by weight of the treatment fluid and wherein the magnesium oxide is present in a concentration of about 20% to about 35% by weight of the treatment fluid.
1 more element
A method comprising:
- introducing a treatment fluid comprising an aqueous base fluid, at least one viscoelastic surfactant, a divalent salt, magnesium sulfate heptahydrate (MgSO4·7H2O), and magnesium oxide (MgO) into a wellbore penetrating at least a portion of a subterranean formation;
- and
- allowing the treatment fluid to at least partially set, wherein the treatment fluid exhibits a right angle set to at least partially plug a loss zone,
- wherein the magnesium sulfate heptahydrate is present in a concentration of about 20% to about 35% by weight of the treatment fluid and wherein the magnesium oxide is present in a concentration of about 20% to about 35% by weight of the treatment fluid.
1 more element
A method comprising:
- introducing a treatment fluid comprising an aqueous base fluid, at least one viscoelastic surfactant, a divalent salt, magnesium sulfate heptahydrate (MgSO4·7H2O), and magnesium oxide (MgO) into a wellbore penetrating at least a portion of a subterranean formation;
- and
- allowing the treatment fluid to at least partially set, wherein the treatment fluid exhibits a right angle set to at least partially plug a loss zone,
- wherein the magnesium sulfate heptahydrate is present in a concentration of about 20% to about 35% by weight of the treatment fluid and wherein the magnesium oxide is present in a concentration of about 20% to about 35% by weight of the treatment fluid.
1 more element
Dependencies are inferred from the claim text.