SAGD-applicable produced water evaporation system for oil sands

Produced water evaporation systems using Silica Sorption technology are available and will be supplied to one of the largest heavy oil producers in Canada, it’s announced.

Steam Assisted Gravity Drainage technology will be utilized for oil sands assets in Northern Alberta to recover bitumen.

The evaporation system will treat de-oiled produced water from the 40,000 bbl of bitumen/calendar day (bbl/cd) operation. It will provide clean distillate to the steam generation system for the SAGD process. The system comprises three HPD evaporators. It is designed fully modular to reduce installation costs and complexity.

Silica Sorption technology used in the evaporation system is a process for treating produced water. It operates at a lower pH than conventional high pH evaporation designs. The Silica Sorption process precipitates silica in a controlled manner as opposed to maintaining it in solution, reports the manufacturer.

Operating the evaporators at a lower pH is said to significantly reduce chemical consumption. It also and importantly allows simpler handling and flexible disposal options of resulting concentrate that is often an issue in conventional systems. The evaporation process also integrates HPD Vapor Washer technology to eliminate risk of foam carryover into evaporator distillate, produced to be used as steam generator feedwater. Additional specifics on both the produced water evaporation system and Silica Sorption are yours free.

Veolia Water Solutions & Technologies
23563 West Main Street, IL Rte. 126, Plainfield IL 60544

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