[12] Patent
[11] Patent No.:GC0007667  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126587
Date of the Decision to Grant the Patent:30/Apr/2018

[21] Application No.:GC 2014-26979

[22] Filing Date:10/4/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- Marc N. Lehmann،2- Christopher William Bowman،3- Wai Yeung Mok،4- Neil Jonathan Barr

[73] Owner: Baker Hughes Incorporated, 2929 Allen Parkway, Suite 2100Texas 77019 , Houston, USA

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




Int. Cl.: C23F 11/04 (2006.01)

[56] Cited Documents:

-US 2007-0077480 A1 (CURELLO et al.) 05 April 2007
-US 4019859 A (LAVIN et al.) 26 April 1977
-US 2003-0053927 A1 (DROZD et al.) 20 March 2003
-US 5977212 A (EBNER et al.) 02 November 1999
-US 2004-0207122 A1 (MASSIDDA et al.) 21 October 2004
Examiner: Nouf AlNassban

[57] Abstract: An oxygen scavenger composition is effective in reducing oxygen-induced corrosion in aqueous systems that contain water, oxygen and a signifi¬cant proportion (at least about 20 wt%) of a glycol, such as monoethylene glycol (MEG). The oxygen scavenger composition contains a sulfite, a transition metal salt, and a stabilizer to enhance the kinetics of oxygen removal (scaveng¬ing). The oxygen scavenger composition is particularly suitable when the transi¬tion metal salt component includes at least two different transition metals together, such as Ni and Co, or Ni and Mn.
No. of claims: 14


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