西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (4): 147-152.

• 油气化学工程与化工 • 上一篇    下一篇

耐温耐盐聚合物堵剂的制备及性能研究

崔思华1,2,张遂安1,管保山2   

  1. 1. 中国石油大学石油工程学院,北京昌平1022492. 中国石油勘探开发研究院廊坊分院,河北廊坊065007
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-08-01 发布日期:2012-08-01

Synthesis and Characterization of Temperature-tolerant and Salt-resistantPolymer Hydrogel

Cui Sihua1,2, Zhang Suian1, Guan Baoshan2   

  1. 1. College of Petroleum Engineering,China Univefsity of Petroleum,Changping,Beijing 102249,China2. Research Institute of Petroleum Exploration and Development-Langfang,CNPC,Langfang,Hebei 065007,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-08-01 Published:2012-08-01

摘要: 针对高温高矿化度地质条件特点,合成了对苯乙烯磺酸钠–2–丙烯酰胺基–2–甲基丙磺酸–膨润土聚合物堵
剂。采用不同浓度盐溶液、使用温度及时间评价其耐盐耐温性能,优化了携带液体系,采用岩芯模拟实验考察堵剂封
堵效果及耐冲刷性能。结果表明:该堵剂在80130 ℃恒温放置60 d 后树脂的吸水率和强度基本保持不变,树脂耐温
性能良好;在质量分数30% 的模拟盐水溶液中吸水率仍可达12.00 gg..1,树脂的耐盐性能良好;树脂在含水40% 的乳
化油中3 h 不膨胀;岩芯实验测定聚合物堵剂在高渗和中渗通道中封堵率达到99.96% 和96.41%,经30 PV 水长期冲
刷封堵率仍可达95.12% 和94.43%。

关键词: 吸水树脂, 耐温, 携带液, 堵水, 调剖

Abstract: A polymer hydrogel is studied which is available for high temperature and high salinity condition,the
SSS/AMPS/bentonite polymer hydrogel is prepared in the lab. The properties of the hydrogel are evaluated using the change
of water absorbency in salt solutions of different concentration,different temperatures and different time and the carrier fluid
is optimized. By single core flow experiment,the shutoff capacity and erode resistant of the block agent are studied. The
results show:the water absorbency and strength keep constant under 80130 ℃ for 60 days;the water absorbency can reach
12.00 gg􀀀1 in the salt solution of 30%;the polymer hydrogel has well property of temperature-tolerant and salt-resistant. The
hydrogel is not swollen in the oil containing 40% water inside within 3 hours. The shutoff efficiency of high permeable formation
and medium permeable formation are 99.96% and 96.41% respectively;the efficiency can still reach 95.12% and 94.43%
after 30PV eroding.

Key words: absorbent polymer hydrogel, temperature-tolerant, carrier fluid, water shutoff, polymer block agent

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