| 复合型热采堵剂PST的研究 |
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| 引用本文： | 刘成杰 孙秀云. 复合型热采堵剂PST的研究[J]. 油田化学, 1995, 12(3): 237-241 |
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| 作者姓名： | 刘成杰 孙秀云 |
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| 作者单位： | 胜利石油管理局采油工艺研究院油层改造所 |
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| 摘 要： | 以改性栲胶ＳＴ、阴离子型聚合物ＰＡＫ为主剂，添加铝硅酸钠盐、醛、苯酚及重铬酸钾，通过低温、高温二次交联制得的冻胶型堵剂ＰＳＴ，能耐很高的温度并具有很大的封堵强度，可用于蒸汽吞吐生产井的堵水和注蒸汽井的封窜调剖。本文介绍了ＰＳＴ堵剂的配方、成胶条件、冻胶耐温性和封堵性能以及在滨南地区热采矿６口蒸汽吞吐井和１口注蒸汽井进行现场堵水、封窜试验的结果。
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| 关 键 词： | 堵水 调剖剂 蒸汽吞吐井 热力采油 稠油开采 |
WATER-PLUGGING/PROFILE MODIFYING AGENT PST FOR USE IN STEAM HUFF-PUFF AND STEAM INJECTION WELLS |
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| Liu Cheng-Jie,Sun Xiu-Yun,Sui Wen,Zhang Jian-Hua. WATER-PLUGGING/PROFILE MODIFYING AGENT PST FOR USE IN STEAM HUFF-PUFF AND STEAM INJECTION WELLS[J]. Oilfield Chemistry, 1995, 12(3): 237-241 |
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| Authors: | Liu Cheng-Jie Sun Xiu-Yun Sui Wen Zhang Jian-Hua |
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| Abstract: | The titled chemical agent PST is of complex composition and crosslinked in two steps to give a strong and thermally resistant gel.In aqueous solution,a potassium acrylate/acrylanmide copolymer,PAK,is crosslinked by Cr(3 )(from potassium bichromate) at relatively low temperatures and a modified tannin extract,TS,phenol and aldehyde react with each other to form a tanninophenolic resin,TSPF,at higher temperatures,with further formation of spatial natwork(gel) PAK/TSPF/Cr(3 ).The gel can be reinforced by introducing sodium alumosilicates.This paper presents the formulation,gelation conditions,performance characteristics and field tests of agent PST in 6 steam huff-puff wells for water plugging and 1 steam injection well for steam injectivity profile modification(anti-steam-channelling)at Binnan region of Shenli. |
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| Keywords: | Polymer/Modified Tannin/Chromium Gel Sodium Alumosilicates Water-Plugging/Profile Modifying Agent for Thermal Recovery Water Plugging in Cyclic Steam Injection Wells Steam Injectivity Profile Modification Formulations Field Tests Viscous and Heavy Crude R |
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