Abstract: A method for increasing the retention of a scale inhibitor within a hydrocarbon producing system is provided. The method includes, the steps of: (i) pre-flushing the system with a liquid; (ii) treating the system with a scale inhibitor; and (iii) over-flushing the system with a composition comprising an ionic polymer and a liquid carrier. The concentration of the ionic polymer in the composition is 5 to 50% wt.
Type:
Application
Filed:
June 23, 2016
Publication date:
January 5, 2017
Applicant:
Champion Technologies Ltd.
Inventors:
Ping Chen, Harry Montgomerie, Stephen Mark Heath, Olav Vikane, Bjorn Juliussen, Thomas Hagen
Abstract: A method for delivering a scale treatment agent to a hydrocarbon producing system. The method includes the steps of contacting the system with a foam comprising the scale treatment agent, and shutting the scale treatment agent in the system for at least 0.5 hour.
Type:
Grant
Filed:
June 11, 2008
Date of Patent:
February 18, 2014
Assignees:
Champion Technologies Ltd., Halliburton Energy Services, Inc., StatoilHydro ASA
Inventors:
Olav Martin Selle, Amare Mebratu, Harry Montgomerie, Ping Chen, Thomas Hagen
Abstract: This invention provides a method for inhibiting scale formation within a hydrocarbon producing system, said method comprising contacting said system with a copolymer formed from a diallyl ammonium salt and at least one other monomer.
Type:
Grant
Filed:
August 2, 2006
Date of Patent:
November 19, 2013
Assignee:
Champion Technologies Ltd.
Inventors:
Ping Chen, Xing Yan, Thomas Hagen, Harry Montgomerie
Abstract: The present invention provides a corrosion inhibitor composition comprising: a carrier; at least one compound of formulae (II)-(VII) or a salt or quaternised derivative thereof: wherein R is C5-21 alkyl or alkenyl, preferably alkyl; each R1 is independently an optionally substituted group of formula —(CH2)nX wherein n is an integer from 1 to 6 and X is C(O)OZ or SO3Z and Z is H or a cation; and R? is C4-20 alkyl or alkenyl, preferably alkyl; and a quaternary ammonium compound.
Type:
Application
Filed:
November 8, 2011
Publication date:
September 5, 2013
Applicant:
Champion Technologies Ltd
Inventors:
Andrew Frederick Miles, Neil Bretherton, Karla Richterova, Ali Naraghi
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).