[12] Patent
[11] Patent No.:GC0009400  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141845
Date of the Decision to Grant the Patent:18/Dec/2018

[21] Application No.:GC 2011-20007

[22] Filing Date:14/12/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
EP
US
17/12/2010
21/1/2011
13/6/2011
61/424,271
11151728.0
61/496,145

[72] Inventors:1- DE WOLF, Cornelia Adriana،2- NASR-EL-DIN, Hisham،3- NASR-EL-DIN MAHMOUD, Mohamed Ahmed،4- LEPAGE, James N.،5- BEMELAAR, Johanna Hendrika

[73] Owner: Akzo Nobel Chemicals International B.V., Stationsstraat 77, NL-3811 MH, Amersfoort, Netherlands

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:
Int. Cl.: C09K8/528; C09K8/60; C09K8/72; C09K8/86 (2006.01)

[56] Cited Documents:

-WO 2009137399 A2 (MI LLC [US] ) 12 November 2009
-WO 2009086954 A1 (AKZO NOBEL NV [NL] ) 16 July 2009
 
Examiner: Rami Al-Ghamdi

[54] FLUID SUITABLE FOR TREATMENT OF CARBONATE FORMATIONS CONTAINING A CHELATING AGENT
[57] Abstract: The present invention covers a fluid suitable for treating carbonate formations containing glutamic acid N,N-diacetic acid or a salt thereof (GLDA) and/or methylglycine N,N-diacetic acid or a salt thereof (MGDA), a corrosion inhibitor, and a surfactant, and the use thereof.
No. of claims: 13     No. of figures: 5


 

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