石油化工高等学校学报

石油化工高等学校学报 ›› 2022, Vol. 35 ›› Issue (4): 66-74.DOI: 10.3969/j.issn.1006-396X.2022.04.010

• 石油化学品及助剂 • 上一篇    下一篇

聚合物传输运移能力与驱油效果关系研究

栾鹏飞(), 卢祥国(), 曹伟佳, 郑凯亓   

  1. 东北石油大学 提高油气采收率教育部重点实验室,黑龙江 大庆 163318
  • 收稿日期:2021-11-16 修回日期:2022-01-07 出版日期:2022-08-25 发布日期:2022-09-27
  • 通讯作者: 卢祥国
  • 作者简介:栾鹏飞(1996⁃),男,硕士研究生,从事提高采收率方法和理论方面研究;E⁃mail:614075571@qq.com
  • 基金资助:
    国家自然科学基金面上项目(51574086);“十三五”国家重大专项子课题(2016ZX05058?003?010)

Study on the Relationship between Polymer Transport Capacity and Oil Displacement Effect

Pengfei Luan(), Xiangguo Lu(), Weijia Cao, Kaiqi Zheng   

  1. Key Laboratory of Enhanced Oil and Gas Recovery(Ministry of Education),Northeast Petroleum University,Daqing Heilongjiang 163318,China
  • Received:2021-11-16 Revised:2022-01-07 Published:2022-08-25 Online:2022-09-27
  • Contact: Xiangguo Lu

摘要:

聚合物在多孔介质内扩大注入水波及体积是聚驱提高采收率的主要机理。考察了聚合物的传输运移和驱油效果。结果表明,聚合物驱油剂黏度与驱油效果不存在正相关性,等质量浓度的“抗盐”聚合物黏度(52.4 mPa?s)高于“高分”聚合物黏度(35.6 mPa?s),但与储层孔喉结构配伍性、注入性和抗剪切性差;“抗盐”聚合物驱替整体采收率增幅(6.94%)低于“高分”聚合物驱替整体采收率增幅(18.94%),与等黏度或等质量浓度的“高分”聚合物相比,“抗盐”聚合物的扩大波及体积能力差。

关键词: “高分”聚合物, “抗盐”聚合物, 提高采收率机理, 聚合物驱, 传输运移能力, 驱油效果

Abstract:

The expansion of the swept volume of injected water by polymers in the porous medium is the main mechanism for polymer flooding to increase oil recovery.The transport of polymer and the oil displacement effect were investigated.Experiments have shown that there is no positive correlation between the viscosity of the polymer flooding agent and the oil displacement effect.The viscosity of the salt?resistant polymer (52.4 mPa?s) is higher than that of the "high?resolution" polymer (35.6 mPa?s ),but it has poor compatibility with the pore?throat structure of the reservoir and poor injection and shear resistance.The oil displacement experiments demonstrate that the overall recovery increase by salt?resistant polymer flooding (6.94%) is lower than that of "high score" polymer flooding (18.94%). Therefore, compared with the "high?score" polymer of "equal viscosity" or "equal concentration", the salt?resistant polymer has a worse ability to expand the swept volume.

Key words: "High score" polymer, "Salt?tolerant" polymer, Enhanced oil recovery mechanism, Polymer flooding, Transport and migration capability, Oil flooding effect

中图分类号: 

引用本文

栾鹏飞, 卢祥国, 曹伟佳, 郑凯亓. 聚合物传输运移能力与驱油效果关系研究[J]. 石油化工高等学校学报, 2022, 35(4): 66-74.

Pengfei Luan, Xiangguo Lu, Weijia Cao, Kaiqi Zheng. Study on the Relationship between Polymer Transport Capacity and Oil Displacement Effect[J]. Journal of Petrochemical Universities, 2022, 35(4): 66-74.

使用本文