Research on Recovering Waste Heat from Liquid Produced in Heavy Oil Exploitation by SAGD Technology

Abstract:

In order to enhance the economy of steam assisted gravity drainage (SAGD) technology, researches were conducted on the technology for recovering heat from liquid produced from oil wells. In this study, spiral-plate heat exchanger has been chosen after comparison and analysis, which is used to recover the heat from the produced liquid and raise the temperature of the softened water used in steam injection boilers. The procedures are liquid produced from the wellhead enters a metering and transfer station for degasification and then enters a centralized heat exchanger station where its temperature is reduced to 100°C from 170°C and the temperature of softened water used as boiler feed water is increased to 110°C from 70°C. The result shows that the fuel gas consumption will drop by 907200Nm³ for each boiler annually when the liquid heat recovery technology is adopted.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 410-413
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.410
• Online since: June 2014
• Authors: Zhong Zheng Xiao, Shu Zhong Wang, Jian Ping Yang
• Keywords: Boiler Feed Water, Fuel Consumption, Heat Exchanger, Steam Assisted Gravity Drainage (SAGD), Waste Heat Recovery

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