无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2021, Vol. 53 ›› Issue (7): 44-47.doi: 10.19964/j.issn.1006-4990.2020-0472

• 研究与开发 • 上一篇    下一篇

无机盐对新疆油田三元复合驱界面性能影响研究

张凤娟1,陈月娥2,任洪达1,翟怀建1,刘鸿飞3,侯军伟3()   

  1. 1.新疆油田公司工程技术研究院,新疆克拉玛依 834000
    2.新疆油田公司呼图壁储气库
    3.重质油国家重点实验室,中国石油大学(北京)克拉玛依校区
  • 收稿日期:2020-08-19 出版日期:2021-07-10 发布日期:2021-07-13
  • 通讯作者: 侯军伟
  • 作者简介:张凤娟(1988— ),女,硕士研究生,高级工程师,从事油气田开发工作。
  • 基金资助:
    新疆维吾尔自治区高校科研计划(XJEDU2018Y060);新疆维吾尔自治区创新环境(人才、基地建设专项人才专项计划-天山青年计划)(2018Q031)

Study on influence of inorganic salts on the interface performance of Xinjiang oilfield ASP flooding

Zhang Fengjuan1,Chen Yuee2,Ren Hongda1,Zhai Huaijian1,Liu Hongfei3,Hou Junwei3()   

  1. 1. Engineering Technology Research Institute,Xinjiang Oilfield Company,Karamay 834000,China
    2. Operation District of Hutubi Gas Storage,PetroChina Xinjiang Oilfield Company
    3. State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing at karamay
  • Received:2020-08-19 Online:2021-07-10 Published:2021-07-13
  • Contact: Hou Junwei

摘要:

界面性能对复合驱提高采收率有重大的影响,界面张力越低,洗油效率越高;Zeta电位越高,油水乳状液越稳定。研究了各类无机盐对新疆油田复合驱界面性能的影响。结果显示,Zeta电位的绝对值随着无机盐浓度的增高而增大;无机碱中,碳酸根离子降低界面张力效果最好,氢氧根次之,碳酸氢根最差;阳离子中,钾离子降低界面张力效果最好,其次是钠离子,镁离子会略微提高界面张力,钙离子则会大幅度提高界面张力;阴离子中,与硫酸根相比,氯离子能更好地降低界面张力。通过以上研究,确定了Q站污水处理站外排水更适合三元复合驱配液。

关键词: 新疆油田, 复合驱, 无机盐, 界面张力, Zeta电位

Abstract:

The interfacial performance has an important influence on the enhanced oil recovery of the combined flooding.The lower the interfacial tension,the higher the oil washing efficiency;the higher the Zeta potential,the more stable the oil-water emulsion.The influence of various inorganic salts on the interfacial performance of Xinjiang oilfield combined flooding was studied.The results showed that the absolute value of Zeta potential increased with the increase of the concentration of inorganic salts.Among inorganic bases,carbonate ion had the best effect in reducing interfacial tension,followed by hydroxide,and bicarbonate was the worst.Among the cations,potassium ions had the best effect on reducing interfacial tension,followed by sodium ions,magnesium ions would slightly increase the interfacial tension,and calcium ions would greatly increase the interfacial tension.Among the anions,compared with the sulfate,chloride ion could reduce the interfacial tension.Through the above research,the drainage outside the sewage treatment station of Q station was more suitable for ASP flooding.

Key words: Xinjiang oilfield, combined flooding, inorganic salts, interfacial tension, Zeta potential

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