TREATMENT OF SHALE FORMATIONS USING A CHELATING AG

专利名称：TREATMENT OF SHALE FORMATIONS

USING A CHELATING AGENT

发明人：NASR-EL-DIN, Hisham,DE WOLF, Cornelia

Adriana,NASR-EL-DIN MAHMOUD,Mohamed Ahmed

申请号：EP12729434.6申请日：20120611公开号：EP2718391A1公开日：20140416

摘要：The present invention relates to a process fortreatinga shaleformationcomprising 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- hydroxyethylethylenediamine N,N',N'-triacetic acid or a salt thereof (HEDTA) into the formationwhichprocess may optionally contain an additional fracturing step.

申请人：Akzo Nobel Chemicals International B.V.

地址：Stationsstraat 77 3811 MH Amersfoort NL

国籍：NL

代理机构：Akzo Nobel IP Department

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