西南石油大学学报(自然科学版) ›› 2019, Vol. 41 ›› Issue (1): 175-186.DOI: 10.11885/j.issn.1674-5086.2018.06.30.01

• 石油机械与油田化学 • 上一篇    

含聚污水深度过滤过程模拟及技术界限优化

王志华1,2, 李杰训1,2, 周楠1, 柏晔1, 许云飞1   

  1. 1. "提高油气采收率"教育部重点实验室·东北石油大学, 黑龙江 大庆 163318;
    2. 中国石油大庆油田博士后科研工作站, 黑龙江 大庆 163458
  • 收稿日期:2018-06-30 出版日期:2019-02-10 发布日期:2019-02-10
  • 通讯作者: 王志华,E-mail:zhihua_wang@nepu.edu.cn
  • 作者简介:王志华,1981年生,男,汉族,甘肃会宁人,教授,博士生导师,主要从事油气集输工艺理论与技术及采出液处理方面的研究。E-mail:zhihua_wang@nepu.edu.cn;李杰训,1968年生,男,汉族,黑龙江肇东人,教授级高级工程师,博士,主要从事油田地面工程建设规划设计与管理方面的研究。E-mail:lijiexun@petrochina.com.cn;周楠,1994年生,男,汉族,黑龙江大庆人,硕士研究生,主要从事油气储运工程方面的研究。E-mail:znvirgo@126.com;柏晔,1993年生,女,汉族,山西临汾人,硕士研究生,主要从事油气集输与矿场加工技术方面的研究。E-mail:baiye666666@126.com;许云飞,1996年生,男,汉族,黑龙江齐齐哈尔人,硕士研究生,主要从事油气集输与矿场加工技术研究。E-mail:xuyunfei103@163.com
  • 基金资助:
    中国博士后科学基金(2017M611349);黑龙江省博士后科学基金(LBH-Z16037)

Simulation of Deep Filtration Process for Wastewater Containing Polymers and Optimization of Technical Boundaries

WANG Zhihua1,2, LI Jiexun1,2, ZHOU Nan1, BAI Ye1, XU Yunfei1   

  1. 1. Key Laboratory for Enhanced Oil & Gas Recovery of the Ministry of Education, Northeast Petroleum University, Daqing, Heilongjiang 163318, China;
    2. Post-Doctoral Research Station of Daqing Oilfield, Daqing, Heilongjiang 163458, China
  • Received:2018-06-30 Online:2019-02-10 Published:2019-02-10

摘要: 针对油田清水资源宝贵、深度处理后的污水水源不足背景下地面系统注采水量失衡的问题,开展了含聚污水在普通处理后进行“双层级配滤料+三层级配滤料”两级过滤的深度处理技术研究,考虑水质含聚浓度的变化及其与过滤工艺参数的关联性,利用数值模拟方法描述了深度过滤流场中油珠及悬浮物粒子的聚集分布特征,确定了深度过滤出水水质中含油与悬浮物含量的变化。结果表明,对含聚污水进行深度过滤而实现油含量、悬浮物含量均控制在5.00 mg/L以内的水质指标是可行的,优化建立的含聚污水深度过滤技术界限关系图版可为提升含聚污水处理指标和效率、保障含聚污水处理工艺运行的负荷与平稳性提供有益指导。

关键词: 过滤速度, 含聚浓度, 深度处理, 聚合物驱采出水, 数值模拟

Abstract: This study addresses the problem of unbalanced water injection and production in a ground system. Based on the existence of insufficient wastewater sources following deep filtration treatments and lack of precious clean water sources in oilfields, this study considers the technology of a two-stage deep filtration treatment that utilizes "double-layered filter material+ three-level graded filter material" after ordinary treatment of polymer-containing wastewater. The advanced treatment technology of two-stage filtration considers variations in polymer concentration and its correlation with filtration process parameters. A numerical simulation is conducted to describe the aggregated distribution characteristics of oil beads and suspended particles in the flow field of the deep filtration process. This is necessary to determine changes in the content of oil and suspended solids in filtered water following deep filtration. The results show that it is feasible to control the water quality indices of oil and the content of suspended solids to within 5.00 mg/L by performing deep filtration on the polymer-containing wastewater. An optimized technical boundary relationship map of the deep filtration technology for polymer-containing wastewater can be used to enhance the indicators and efficiency of its treatment. The operational load and stability of the polymer-containing wastewater treatment process can also be ensured.

Key words: filtration rate, polymer concentration contained, deep treatment, produced water from polymer flooding, numerical simulation

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