Inventors:
David Fulmer - Missouri City TX, US
James Waterfallen - Kingwood TX, US
Brian George - Spring TX, US
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
B08B 9/00
Abstract:
Diethylhydroxylamine (DEHA) and di-isopropylhydroxylamine can be used to remove iron deposits from the surfaces of closed loop systems. A closed loop system can be cleaned of iron deposits by first contacting the surface of the closed loop system having iron deposits with an aqueous solution of an oxygen scavenger; and then introducing diethylhydroxylamine, di-isopropylhydroxylamine, or mixtures thereof; into the closed loop system at a concentration sufficient to cause the iron deposits to release from the surface of the closed loop system. It can be desirable to use a filter or strainer to trap and remove the particulate iron deposits once they have been released from the surface of the closed loop system. In the alternative, a dispersant can be used to prevent released particulate iron deposits from reforming as scale.