[12] Patent
[11] Patent No.:GC0007604  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126157
Date of the Decision to Grant the Patent:18/Apr/2018

[21] Application No.:GC 2012-22606

[22] Filing Date:3/11/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
20/10/2011
61/549,576

[72] Inventors:1- Howard James Spencer،2- Ravinder Virdee،3- Michael P. Squicciarini،4- Gordon T. Rivers،5- Marc N. Lehmann

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

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

  

 

  

[51]IPC:
Int. Cl.: C09K 8/52; C10L 3/10; E21B 37/06 (2006.01)

[56] Cited Documents:

-US 2011-0240915 A1 (TIAN, JUN et al.) 06 October 2011  
Examiner: Faisal Abdulla Aljardan

[54] LOW DOSAGE KINETIC HYDRATE INHIBITORS FOR NATURAL GAS PRODUCTION SYSTEMS
[57] Abstract: Copolymers containing acryloylmorpholine and vinylimidazole, and optionally vinylcaprolactam and/or n-vinyl pyrrolidone, have shown superior results in hydrate inhibition tests at conditions of 7°C subcooling dosed at 1 vol% based on the water cut of the system fluids. The copolymer product has also passed high TDS (total dissolved solids) brine compatibility tests and secondary property tests including foaming and hot injection tests which make it useful as a kinetic hydrate inhibitor in gas production systems susceptible to the formation of natural gas hydrates.
No. of claims: 7     No. of figures: 2


 

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