TREATMENT OF SHALE FORMATONS USING A CHELATING AGENT
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Jun 11, 2012
filing date -
Jun 13, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a process for treating a shale formation comprising introducing a fluid containing glutamic acid N,N-diacetic acid or a salt thereof (GLDA), methylglycine N,N-diacetic acid or a salt thereof (MGDA),and/or N- hydroxyethyl ethylenediamine N,N′,N′-triacetic acid or a salt thereof (HEDTA) into the formation which process may optionally contain an additional fracturing step.
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