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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Optimization of Heavy Oil Dehydration System Process

Author of the article:Sun Lin; Sun Lingnian

Author's Workplace：1.Petroleum Engineering College of Yangtze University;2.Sinopec Shengli Oil Field Hekou Oil Production Factory

Key Words：Heavy oil dehydration; Water knockout drum; Degasser; Process system; Informatization; Automation

Abstract：In heavy oil recovery process, with multiple rounds of steam injection, the amount of produced fluids is increasing, which is bound to have an impact on heavy oil dehydration process within the joint station, resulting in overload of dehydration equipment, increase in energy consumption and great security risks. Therefore, after studying the process and facilities of heavy oil dehydration treatment at Chenghuang joint station, the heavy oil dehydration process, instrumentation level and processing facilities at home and abroad were analyzed and compared on the basis of actual production at the station to put forward optimization scheme for heavy oil dehydration process and water knock-out facilities. Besides, vertical degasser was added with the function of information collection and autocontrol provided for operation parameters. After optimization, system pressure was reduced, better performance of dewatering was obtained for water separator and settling tank, while more associated gas was recycled to save energy consumption and reduce potential safety risks.