Treatment fluids containing a biodegradable chelating agent and methods for use thereof
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United States of America Patent
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May 12, 2015
Grant Date -
Mar 22, 2012
app pub date -
Mar 18, 2011
filing date -
Aug 4, 2006
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Abstract
Methods for treating a subterranean formation can include: 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. The treatment fluid may then be introduced into at least a portion of a subterranean formation.
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