文献类型：期刊文献

英文题名：High-Efficiency Pre-Treatment Core Tube for Produced Water in the Main Cavity Coupled with Secondary Cavities and Its Application in the Bohai Heavy Oilfield

作者：Li, Yudong[1];Qian, Yundong[2];Lu, Hao[1];Dai, Pinyi[1];Zhu, Huatong[1];Yang, Qiang[1];Liu, Yiqian[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：11

期号：1

外文期刊名：JOURNAL OF MARINE SCIENCE AND ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000915406400001)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant NO. 52025103), the Shanghai Rising-Star Program (Grant No. 22QA1402600).

语种：英文

外文关键词：produced water; core tube; compact separator; oil-water separation

摘要：Improving the produced fluid yield is an effective measure for realizing the crude oil production capacity of offshore platforms. However, for offshore platforms employed in production, using the narrow space of the platform to expand the produced water treatment system is a significant problem. In this study, a highly efficient pre-treatment core tube was coupled with the main cavity and secondary cavities (MCSCs) based on a vane-type tubular separator and a cub-mother cyclone. The optimal inlet Reynolds number and processing capacity were determined according to the structure size of the MCSC, and the MCSC was applied to achieve highly efficient pre-treatment of produced water in a heavy oilfield in the Bohai Sea. The comprehensive evaluation indicators F-A and F-V were better than those used by current technology. When the influent oil content fluctuated around 2000 mg/L (average of 1772.81 mg/L), the oil content in the effluent was stable and below 200 mg/L (average of 106.44 mg/L), and the separation efficiency was nearly 94%. Compared to those of the current corrugated plate interceptor on the platform, the floor space was reduced by more than 60% and the separation efficiency increased by up to 65%.