水平流网格管油水泥分离效果研究  

SEPARATION PERFORMANCE OF OIL-WATER-SLUDGE IN HORIZONTAL GRID TUBES

作　　者：王莉莉[1] WANG Lili(SINOPEC Petroleum Exploration and Production Research Institute,Beijing 102206,China)

机构地区：[1]中国石油化工股份有限公司石油勘探开发研究院,北京102206

出　　处：《环境工程》2024年第6期54-62,共9页Environmental Engineering

基　　金：中国石化优秀青年技术创新基金(P21059)。

摘　　要：传统油田采出污水处理设备占地面积大,处理效率低,采用水平流网格管油水分离技术对其进行改造,探究其油水泥分离效果。通过Fluent软件模拟、室内实验、现场实验相结合的方式,研究水平流网格管内的油水泥三相分离规律。Fluent软件数值模拟结果表明,管长越长、流体流速越小,油水分离效果越好;入口含油量增大,出水含油量升高,6 m管长进口含油量应控制在0.1%以内。室内实验及现场实验结果同数值模拟结果基本一致,印证了数值模拟解释的油水泥分离规律。此外,现场实验中,入口流速为0.02~0.05 m/s、入口含油量为590~2710 mg/L时,出水油含量为63~86 mg/L、悬浮物含量为86~145 mg/L。网格管对油及悬浮物去除效果稳定,抗水质波动能力强,占地面积小,投资及运行成本低,具有一定的推广参考。The transportation and treatment systems of traditional oil fields have large footprint and low efficiency,while the oil-water separation technology of horizontal flow grid tubes is used to transform,exploring energy savings and consumption reduction.The separation law of oil-water-sludge in horizontal grid tubes was studied by combining Fluent software simulation with indoor and field experiments.The numerical simulation results showed that the longer the tube length,the smaller the fluid flow rate,and the better the oil-water separation effect.The inlet oil content increased,and the effluent increased.The oil concentration at the inlet of the six-meter gird tube should be controlled within 0.1%.The results of laboratory and field experiments were basically consistent with the results of numerical simulation,which confirmed the oil-water-sludge separation law explained by numerical simulation.Field experiments have shown that when the inlet flow rate varied between 0.02 m/s to 0.05 m/s,and the inlet oil content varied between 590 mg/L to 2710 mg/L,the effluent oil content was 63 mg/L to 86 mg/L and the suspended solids content was 86 mg/L to 145 mg/L.The grid tube has a stable removal effect on oil and suspended solids,indicating strong resistance to water quality fluctuations.It occupies a small area and has low investment and operating cost.

关 键 词：水平流网格管 数值模拟 油水泥分离 FLUENT 

分 类 号：X741[环境科学与工程—环境工程]