The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Aug. 16, 2007
Harry Montgomerie, Aberdeen, GB;
Ping Chen, Aberdeen, GB;
Thomas Hagen, Stavanger, NO;
Rex Wat, Ranheim, NO;
Olav Martin Selle, Jakobsli, NO;
Harry Montgomerie, Aberdeen, GB;
Ping Chen, Aberdeen, GB;
Thomas Hagen, Stavanger, NO;
Rex Wat, Ranheim, NO;
Olav Martin Selle, Jakobsli, NO;
Champion Technologies Ltd., , GB;
Statoilhydro ASA., , NO;
Abstract
The present invention provides a method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer formed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).