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US 10,329,478 B2Granted
Aldehydes as a catalyst for an oxidative breaker
AssigneeHalliburton Energy Services, Inc.
InventorsEli Allen Schnoor, Dipti Singh, Aaron Gene Russell
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Abstract
The present disclosure relates to systems and methods for using aldehydes as a catalyst for oxidative breakers. An embodiment of the present disclosure is a method comprising: providing a treatment fluid that comprises: an aqueous base fluid, a polymeric gelling agent, a breaker that comprises an oxidative salt, and a catalyst that comprises an aldehyde; allowing the breaker to interact with the polymeric gelling agent; and allowing the viscosity of the treatment fluid to reduce.
Claims16
A method comprising:
- providing a treatment fluid that consists essentially of:
- an aqueous base fluid,
- a polymeric gelling agent,
- a breaker that comprises at least one oxidative salt selected from the group consisting of:
- a chlorite salt, a chlorate salt, a perchlorate salt, and any combination thereof, wherein the breaker is present in the treatment fluid in a range of about 0.00625% to about 0.25% weight by weight,
- a catalyst that comprises at least one aldehyde selected from the group consisting of:
- glutaraldehyde, propionaldehyde, and any combination thereof, wherein the catalyst is present in the treatment fluid in a range of about 0.0025% to about 0.05% weight by weight;
- allowing the breaker to interact with the polymeric gelling agent in the presence of the catalyst at a temperature in a range of about 140° F. to about 200° F.;
- and
- allowing the viscosity of the treatment fluid to break in less than about 60 minutes.
7 more elements
A method comprising:
- introducing a treatment fluid into a portion of a subterranean formation, wherein the treatment fluid consists essentially of:
- an aqueous base fluid,
- a polymeric gelling agent,
- a breaker that comprises at least one oxidative salt selected from the group consisting of:
- a chlorite salt, a chlorate salt, a perchlorate salt, and any combination thereof, wherein the breaker is present in the treatment fluid in a range of about 0.00625% to about 0.25% weight by weight, and
- a catalyst that comprises at least one aldehyde selected from the group consisting of:
- glutaraldehyde, propionaldehyde, and any combination thereof, wherein the catalyst is present in the treatment fluid in a range of about 0.0025% to about 0.05% weight by weight;
- allowing the breaker to interact with the polymeric gelling agent in the presence of the catalyst at a temperature in a range of about 140° F. to about 200° F.;
- and
- allowing the viscosity of the treatment fluid to break in less than about 60 minutes.
7 more elements
Dependencies are inferred from the claim text.