| 胶囊破胶剂的介质分散分相法制备研究 |
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| 引用本文： | 何显儒,韩超,王煦,李柯,诺布扎西. 胶囊破胶剂的介质分散分相法制备研究[J]. 西南石油学院学报, 2010, 32(1) |
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| 作者姓名： | 何显儒 韩超 王煦 李柯 诺布扎西 |
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| 作者单位： | 何显儒,HE Xian-ru(西南石油大学材料科学与工程学院,四川,成都,610500;四川大学高分子科学工程学院,四川,成都,610065);韩超,王煦,李柯,诺布扎西,HAN Chao,WANG Xu,LI Ke,NUOBU Zha-xi(西南石油大学材料科学与工程学院,四川,成都,610500) |
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| 摘 要： | 针对压裂施工过程中破胶过早的问题,以过硫酸铵为芯材,选用适宜的聚合物为囊衣材料,采用分散分相法制备胶囊破胶剂.通过比较,确定了聚乙烯醇(PVA)和乙烯-醋酸乙烯共聚物(EVA)为较好的囊衣材料,通过正交实验研究了两种胶囊破胶剂的制备工艺.结果表明:搅拌速率、温度、衣材与囊芯的质量比、衣材溶液和分散剂的质量分数对胶囊破胶剂性能有较大影响.制备PVA胶囊破胶剂的最佳条件为:温度25 ℃,搅拌速率270 r/min,衣材与囊芯的质量比2∶ 8,分散剂用量为1%;制备EVA胶囊破胶剂的最佳条件为:温度25 ℃,搅拌速率300 r/min,衣材溶液和分散剂的用量为5%和2%.
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| 关 键 词： | 压裂液 胶囊破胶剂 延迟释放 制备 分散分相法 |
PREPARATION OF ENCAPSULATED BREAKER BY MEDIA DISPERSION AND PHASE SEPARATION |
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| HE Xian-ru,,HAN Chao,WANG Xu,LI Ke,NUOBU Zha-xi. PREPARATION OF ENCAPSULATED BREAKER BY MEDIA DISPERSION AND PHASE SEPARATION[J]. Journal of Southwest Petroleum Institute, 2010, 32(1) |
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| Authors: | HE Xian-ru HAN Chao WANG Xu LI Ke NUOBU Zha-xi |
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| Affiliation: | HE Xian-ru1,2,HAN Chao1,WANG Xu1,LI Ke1,NUOBU Zha-xi1(1.School of Material Science , Engineering,Southwest Petroleum University,Chengdu Sichuan 610500,China,2.College of Polymer Science , Engineering,Sichuan University,Chengdu Sichuan 610065,China) |
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| Abstract: | To the problem of gel breaking prematurely in fracturing operations,encapsulated breaker is produced with ammonium persulfate as the core and appropriate polymer materials as the coat by media dispersion and phase separation.Polyvinyl alcohol (PVA) and ethylene-vinyl acetate copolymer (EVA) is selected as the coat materials by experimentation and comparing.The preparation technology is studied by orthogonal experiment.The result shows that the performance of encapsulated breaker can be influenced by the sti... |
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| Keywords: | fracturing liquids encapsulated breaker delayed release preparation dispersion and dispersing agent |
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