纳米颗粒增强AM/AMPS复合凝胶反向堵水技术

doi:10.3969/j.issn.1006-6535.2021.02.016

特种油气藏 ›› 2021, Vol. 28 ›› Issue (2): 108-111.DOI: 10.3969/j.issn.1006-6535.2021.02.016

纳米颗粒增强AM/AMPS复合凝胶反向堵水技术

王恩成

中国石化中原油田分公司,河南濮阳 457001

收稿日期:2020-06-02 修回日期:2021-01-05 出版日期:2021-04-25 发布日期:2022-02-16
作者简介:王恩成(1970—),男,高级工程师,1992年毕业于江汉石油学院采油工程专业,2015年毕业于长江大学石油与天然气专业,获硕士学位,现主要从事油气田开发技术管理工作。
基金资助:
中国石化科研项目“高性能油气田开发用化学剂的开发及应用”(2019032-2)

Study on Reverse Water Plugging Technology of Nanoparticle Reinforced AM/AMPS Composite Hydrogel

Wang Encheng

SINOPEC Zhongyuan Oilfield Company, Puyang, Henan 457001, China

Received:2020-06-02 Revised:2021-01-05 Online:2021-04-25 Published:2022-02-16

摘要/Abstract

摘要： 针对普通聚合物调驱剂强度低、耐温耐盐性差等问题,研制了添加纳米SiO₂颗粒的AM/AMPS聚合物复合凝胶堵水剂,并分析其堵水机理。实验研究表明:AM/AMPS+SiO₂复合凝胶具有良好的耐温耐盐性、耐冲刷性及封堵性能,其堵水机理为改善润湿性,将岩层由亲油变为亲水。使用该复合凝胶对文留油田的油井实施反向堵水驱油作业,驱油效果明显改善,累计增油量为4 244.0 t,取得了良好的经济效益。该研究对解决采收率低的高含水油井具有指导意义和应用推广价值。

关键词: 纳米SiO₂颗粒, 聚合物调驱, 复合凝胶, 反向堵水, 文留油田

Abstract: In order to solve the problems of low strength and poor temperature and salt resistance of common polymer profile control and displacyment agent, AM/AMPS polymer composite hydrogel plugging agent with nano SiO₂ particles was developed and its plugging mechanism was analyzed. It was found in the experimental study that AM/AMPS+SiO₂ composite hydrogel had high temperature and salt resistance, erosion resistance and plugging performance, and its plugging mechanism was to improve the wettability and change the rock formation from lipophilic to hydrophilic. This composite hydrogel was used in reverse water plugging and oil displacement in oil wells in the Wenliu Oilfield, the oil displacement effect was significantly improved, realizing accumulative oil enhancement of 4 244.0 t, with high economic benefits. This study has a strong guiding significance in solving the problem of low recover efficiency of oil wells with high water cut, and opens a new prospect in application.

Key words: nano SiO₂ particles, polymer profile control and displacement, composite hydrogel, reverse water plugging, Wenliu Oilfield

中图分类号:

TE357.46

王恩成. 纳米颗粒增强AM/AMPS复合凝胶反向堵水技术[J]. 特种油气藏, 2021, 28(2): 108-111.

Wang Encheng. Study on Reverse Water Plugging Technology of Nanoparticle Reinforced AM/AMPS Composite Hydrogel[J]. Special Oil & Gas Reservoirs, 2021, 28(2): 108-111.

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纳米颗粒增强AM/AMPS复合凝胶反向堵水技术

Study on Reverse Water Plugging Technology of Nanoparticle Reinforced AM/AMPS Composite Hydrogel

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