GE P&W SAGD Water Evaporators - Manual

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GEA17906_SAGD_Brochure.doc Jun-13
Capability
Profile
Connacher Oil & Gas Great Divide Project,
Ft. McMurray, Alberta, Canada
Approx. 900 gpm feed, 2007
Petro Canada Mackay River,
Ft. McMurray, Alberta, Canada,
Approx. 165 gpm feed, 2002
Treatment of Heavy Oil Produced Water Using
Evaporation and Zero Discharge Technology
Proven Global Experience
GE Water & Process Technologies (GE) is the pioneer
and an industry leader in produced water evaporation
and crystallization systems, having developed its pa-
tented high pH evaporation technology in the late
1990s and optimized its evaporation and crystalliza-
tion technologies over the past 10 years. With 20
evaporators, crystallizers, and dryers installed or under
construction at heavy–oil, in-situ thermal production
facilities in the Alberta Oil Sands alone, GE continues to
lead the way in the safe and reliable treatment of pro-
duced water and OTSG (once-through steam genera-
tor) blowdown for boiler feed water and/or Zero Liquid
Discharge (ZLD). High pH evaporation is the only com-
mercially proven and the most cost-effective thermal
solution for the treatment of produced water in heavy
oil recovery processes.
Superior Distillate Quality Provides
Reliable Operation of Drum Boilers
GE evaporators
employ a pro-
prietary
Con-
taminant Re-
duction System
for the produc-
tion of superior
distillate quality,
enabling
effi-
cient and relia-
ble operation of
high-pressure
(>1,000
psig)
drum boilers.
When coupled
with GE’s high pH evaporator design, this internal sys-
tem enables produced water evaporators to generate
distillate that is four to five times better than evapora-
tors operating with external vapor washers. The Con-
taminant Reduction System is self-cleaning, protects
against foaming events, and produces no additional
waste compared to an external vapor washer. In the
Alberta Oil Sands, GE has supplied six produced wa-
ter evaporators to provide distillate for drum boilers
on SAGD (Steam-Assisted Gravity Drainage) applica-
tions and four evaporators that provide distillate for
OTSGs.
Improving on a Proven Technology
With an advanced re-
search and development
program and abundant
experience from several
commercially operating
produced water evapo-
rator systems, GE con-
tinues to optimize and
improve upon its high pH
evaporation technology.
Some recent optimiza-
tions include:
• More than 50% re-
duction in caustic
consumption, result-
ing in low chemical and operating costs com-
pared to other produced water evaporative tech-
nologies
• Elimination of scale inhibitor, further reducing
chemical costs and producing evaporator blow-
down that is easily post treated prior to deep well
injection
• Cascade and split-sump evaporator designs
providing lower capital costs and improving en-
ergy efficiency
• An internal Contaminant Reduction System for
superior distillate quality and reliable operation of
high-pressure (>1,000 psig) drum boilers
• In-situ chemical cleaning to improve system
availability and maximize steam to field