| 地层内聚合丙烯酰胺凝胶堵水技术的改进 |
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| 引用本文： | 唐孝芬,张继勇.地层内聚合丙烯酰胺凝胶堵水技术的改进[J].油田化学,1997,14(2):131-134,164. |
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| 作者姓名： | 唐孝芬 张继勇 |
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| 作者单位： | [1]北京石油勘探开发科学研究院采油所 [2]冀东油田开发生产部 |
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| 摘 要： | 介绍了用亚硫酸盐作前置预处理液的丙烯酰胺－甲叉双丙烯酰胺地层内聚合形成 的新堵水方法以及该方法在封堵油井管外窜槽，松散地层出砂形成的鼠洞及出水层等方面的现场应用实例。使用该方法可减少堵剂用量，大大提高封堵成功率，封窜成功率为１００％．
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| 关 键 词： | 聚合物 凝胶堵水剂 油井堵水 油田 |
AN IMPROVEMENT IN USING IN SITU GELLED ACRYLAMIDE/METHYLENE BISACRYLAMIDE WATER SHUTOFF AGENT |
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| Tang Xiao Fen,Cai Zhi Jun,Li Yu Xiang.AN IMPROVEMENT IN USING IN SITU GELLED ACRYLAMIDE/METHYLENE BISACRYLAMIDE WATER SHUTOFF AGENT[J].Oilfield Chemistry,1997,14(2):131-134,164. |
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| Authors: | Tang Xiao Fen Cai Zhi Jun Li Yu Xiang |
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| Abstract: | It is shown experimentally that introducing sodium sulfite into acrylamide/methylenebisacrylamide/ammonium persulfate aqueous system, in situ gellable water plugging agent PT 910, leads to accelerating gelation of this system and strengthening the gel formed. Thus sulfite solution is used as pad fluid to pretreat the aimed zones in production wells in Jidong Oil Fields. By this improved technology water shutoff operations are performed in more than ten wells for plugging near borehole cavities (one well), water producing zones (2 wells) and water channellings out of casings (other wells). In the later cases all operations are successful and the amount of gelling solution needed is dramatically decreased. |
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| Keywords: | Gelled Polymer Water Plugging Agent Aqueous Acrylamide/Methylenebisacrylamide Polymer Gel Water Shutoff Technology Water Control in Production Wells Jidong Oil Fields |
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