Treatment fluids containing a biodegradable chelating agent and methods for use thereof
AssigneeHalliburton Energy Services, Inc.
InventorsEnrique A. Reyes, Thomas D. Welton
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Abstract
Of the many methods provided herein, an example is a method including: providing a treatment fluid that comprises: an aqueous base fluid; a hydrofluoric acid source selected from the group consisting of hydrofluoric acid, a hydrofluoric acid generating compound, and a combination thereof; and a biodegradable chelating agent comprising one of the following selected from the group consisting of: glutamic acid diacetic acid, a glutamic acid diacetic acid salt, a derivative thereof, and a combination thereof; and introducing the treatment fluid into at least a portion of a subterranean formation.
Claims22
A method comprising:
- providing a treatment fluid that comprises:
- an aqueous base fluid;
- a hydrofluoric acid source selected from the group consisting of hydrofluoric acid, a hydrofluoric acid generating compound, and a combination thereof;
- and
- a biodegradable chelating agent comprising one of the following selected from the group consisting of:
- glutamic acid diacetic acid, a glutamic acid diacetic acid salt, a derivative thereof, and a combination thereof;
- and
- introducing the treatment fluid into at least a portion of a subterranean formation.
A method comprising:
- providing a treatment fluid that comprises:
- an aqueous base fluid;
- a hydrofluoric acid source selected from the group consisting of hydrofluoric acid, a hydrofluoric acid generating compound, and a combination thereof;
- and
- a biodegradable chelating agent comprising one of the following selected from the group consisting of:
- glutamic acid diacetic acid, a glutamic acid diacetic acid salt, a derivative thereof, and a combination thereof;
- introducing the treatment fluid into at least a portion of a subterranean formation;
- and
- performing a fracturing treatment in the subterranean formation.
A method comprising:
- providing a treatment fluid that comprises:
- an aqueous base fluid;
- and
- a biodegradable chelating agent comprising one of the following selected from the group consisting of:
- a glutamic acid diacetic acid salt, a derivative thereof, and a combination thereof, wherein the glutamic acid is not a glutamic acid diacetic acid sodium salt;
- introducing the treatment fluid into at least a portion of a subterranean formation.
Dependencies are inferred from the claim text.