[12] Patent
[11] Patent No.:GC0009347  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141400
Date of the Decision to Grant the Patent:11/Dec/2018

[21] Application No.:GCC/P/2008/11351

[22] Filing Date:20/7/2008

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
24/7/2007
60/951,616

[72] Inventors:1- Bei HinŲŒ2- Jingjun Yang

[73] Owner: Dow Global Technologies Inc, Washington Street, 1790 Building, Midland, Michigan 48674, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
Int. Cl.: A01N 57/20; A01P 1/00 (2006.01)

[56] Cited Documents:

-EP 0 385 801 A (ALBRIGHT & WILSON [GB]) 5 September 1990
 
Examiner: Bander M. Al-Thobity

[54] METHODS OF AND FORMULATIONS FOR REDUCING AND INHIBITING THE GROWTH OF THE CONCENTRATION OF MICROBES IN WATER-BASED FLUIDS AND SYSTEMS USED WITH THEM
[57] Abstract: The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use glutaraldehyde and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phoshponium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine, in a ratio of hydroxymethyl-substituted phosphorus compound to glutaraldehyde in the range of about 2:1 to about 7:1, or about 3.5:1 to about 7.5:1. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield, natural gas field and other industrial applications.
No. of claims: 20


 

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