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US 8,138,129 B2Granted
Scale inhibiting particulates and methods of using scale inhibiting particulates
AssigneeHalliburton Energy Services, Inc.
InventorThomas D. Welton
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Abstract
Scale-inhibiting particulates formed from a mixture of fly ash and a phosphonic acid curing agent wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent. Methods of using scale-inhibiting particulates to inhibit scale formation in a subterranean formation.
Claims20
A method of inhibiting scale formation in a subterranean formation comprising:
- forming a scale-inhibiting particulate from a mixture of fly ash and a phosphonic acid curing agent wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent;
- and,
- placing the scale-inhibiting particulate into a portion of a subterranean formation wherein the scale-inhibiting particulate releases a scale inhibitor over time when exposed to aqueous fluids.
A method of inhibiting scale formation in a subterranean formation comprising:
- forming a scale-inhibiting particulate from a mixture of fly ash and a phosphonic acid curing agent wherein the fly ash is cured into a solid material by the contact with the phosphonic acid curing agent;
- and,
- suspending the scale-inhibiting particulate into a treatment fluid;
- and,
- placing the scale-inhibiting particulate to a desired location within a portion of a subterranean formation, wherein the scale-inhibiting particulate releases a scale inhibitor over time when exposed to aqueous fluids.
2 more elements
Dependencies are inferred from the claim text.