ConocoPhillips
TREATMENT OF OTSG BLOWDOWN

Abstract:

A method and system generate steam for SAGD operation wherein steam generator blowdown water is acidified, cooled and clarified before reuse. Acid Clarification Treatment, or "ACT", mitigates organic fouling in Once-Through Stream Generators. Lab tests quantitatively and qualitatively show that ACT reduces Total organic carbon (TOC) and `bad actors` TOC, respectively, in blowdown streams.