石油化工高等学校学报

石油化工高等学校学报 ›› 2021, Vol. 34 ›› Issue (4): 33-38.DOI: 10.3969/j.issn.1006-396X.2021.04.006

• 石油工程 • 上一篇    下一篇

抗盐聚合物驱污水回注对油层的伤害研究

黄斌1,2(), 黄立凯1, 傅程1,2(), 赵晶3, 丁畅1, 张庭玮1   

  1. 1.东北石油大学 石油工程学院, 黑龙江 大庆 163318
    2.大庆油田博士后科研工作站, 黑龙江 大庆 163458
    3.大庆油田有限责任公司 第一采油厂试验大队, 黑龙江 大庆 163000
  • 收稿日期:2021-03-19 修回日期:2021-04-14 出版日期:2021-08-25 发布日期:2021-09-18
  • 通讯作者: 傅程
  • 作者简介:黄斌(1982⁃),男,博士,教授,博士生导师,从事油田采出水处理方面研究;E⁃mail:huang_bin_111@163.com
  • 基金资助:
    国家自然科学基金资助(51974088)

Study on the Damage of Salt⁃Resistant Polymer Flooding Sewage Reinjection to Reservoir

Bin Huang1,2(), Likai Huang1, Cheng Fu1,2(), Jing Zhao3, Chang Ding1, Tingwei Zhang1   

  1. 1.College of Petroleum Engineering,Northeast Petroleum University,Daqing Heilongjiang 163318,China
    2.Post?Doctoral Scientific Research Station,Daqing Oilfield Company,Daqing Heilongjiang 163458,China
    3.Experimental Team of No. 1 Oil Production Plant in Daqing Oilfield,Daqing Heilongjiang 163000,China
  • Received:2021-03-19 Revised:2021-04-14 Published:2021-08-25 Online:2021-09-18
  • Contact: Cheng Fu

摘要:

采用14种不同水质污水进行了室内流动性实验,利用岩心的渗透率损失率将各污水回注的伤害程度划分为低、中等、高。结果表明,影响岩心渗透率损失程度的因素排序为:悬浮物质量浓度>油质量浓度>抗盐聚合物质量浓度>普通聚合物质量浓度。残余抗盐聚合物质量浓度较高的污水具有更强的堵塞能力。针对空气渗透率为200 mD的岩心,低伤害程度回注的要求下,当悬浮物和油的质量浓度均为10 mg/L时,抗盐聚合物驱污水需控制聚合物质量浓度在200 mg/L以下,而普通聚合物驱污水需控制聚合物质量浓度在300 mg/L以下。研究结果对抗盐聚合物驱污水回注水质处理指标和油层保护具有积极作用。

关键词: 抗盐聚合物, 污水回注, 渗透率损失, 伤害, 油层保护

Abstract:

14 kinds of sewage with different water quality were used for the indoor fluidity experiments. The adverse impact degree of different sewage to the cores was classified into high, middle and low, according to the the permeability loss rate. The results show that the factors affecting the permeability loss degree of cores are as followes: suspended sediment concentration > oil content > salt?resistant polymer concentration > common polymer concentration. Sewage with higher residual salt?resistant polymer concentration has strong plugging capacity. For the cores with air permeability of 200 mD, when suspended sediment concentration is 10 mg/L and oil content is 10 mg/L, the polymer concentration of salt?resistant polymer flooding sewage should be controlled below 200 mg/L, while the polymer concentration of common polymer flooding sewage should be controlled below 300 mg/L, in order to ensure the low degree of the damage to reservoir caused by sewage reinjection, The results of this work has a positive effect on the reservoir protection and water quality index of salt?resistant polymer flooding sewage reinjection.

Key words: Salt?resistant polymer, Sewage reinjection, Permeability loss, Damage, Reservoir protection

中图分类号: 

引用本文

黄斌, 黄立凯, 傅程, 赵晶, 丁畅, 张庭玮. 抗盐聚合物驱污水回注对油层的伤害研究[J]. 石油化工高等学校学报, 2021, 34(4): 33-38.

Bin Huang, Likai Huang, Cheng Fu, Jing Zhao, Chang Ding, Tingwei Zhang. Study on the Damage of Salt⁃Resistant Polymer Flooding Sewage Reinjection to Reservoir[J]. Journal of Petrochemical Universities, 2021, 34(4): 33-38.

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