| 新型固井防窜外加剂J-2B的研究及应用 |
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| 引用本文： | 杜伟程,谢承斌,吕光明,韩相义,王俊清,肖纪石,王大权.新型固井防窜外加剂J-2B的研究及应用[J].钻井液与完井液,1999(6). |
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| 作者姓名： | 杜伟程 谢承斌 吕光明 韩相义 王俊清 肖纪石 王大权 |
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| 作者单位： | 中国石油天然气集团公司工程技术研究院
(杜伟程，谢承斌，吕光明)，长庆油田钻井二处固井大队
(韩相义，王俊清，肖纪石)，长庆油田钻井二处固井大队(王大权) |
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| 摘 要： | “窜”“漏”是调整井固井存在的主要问题,严重时,环空水泥浆被完全冲蚀,甚至造成井壁坍塌,严重影响着固井质量。根据防窜理论、结合水化历程对环空水泥浆水窜机理进行了综合分析,得出了水泥浆过渡状态是防窜最薄弱的环节。并提出了“低滤失、高内聚阻力、短过滤、高早强、微膨胀的防窜思路,据此研制出新型固井防窜外加刑J-2B。现场应用表明,J-2B是一种性能优异、有效的低温浅层调整井固井防窜外加剂产品,现已固井200余口,优质率达90％。
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| 关 键 词： | 水泥浆 水泥浆添加剂 固井 防窜 调整井 |
Study and application of a novel anti-channeling additive J-2B |
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| Du Weicheng. Xie Chengbin and Lu Guangming,Petroleum Engineering Research Institute of CNPC. Tianjin, Han Xiangyi,Wang Junqing,Xiao Jishi and Wang Daquan Cementing Crew of Changqing Oilfield..Study and application of a novel anti-channeling additive J-2B[J].Drilling Fluid & Completion Fluid,1999(6). |
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| Authors: | Du Weicheng Xie Chengbin and Lu Guangming Petroleum Engineering Research Institute of CNPC Tianjin Han Xiangyi Wang Junqing Xiao Jishi and Wang Daquan Cementing Crew of Changqing Oilfield |
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| Abstract: | Water channeling and cement losses are frequently encountered during cementing the adjustment wells. Comprehensive analysis reveals that water channeling is most likely to take place during transition between initial set and final set. Thus shorten the transition is important especially in shallow well cementing. J-2B is developed to reduce filtration, raise inner resistance and shortenthe transition of cement slurry. High early strength and minimum swelling were obtained in field tests. |
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| Keywords: | cementing cement slurry cement additive channeling |
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