长冲程抽汲作业钢丝绳密封技术综合分析
Oil Field Equipment（2010）
Abstract
介绍了几种钢丝绳井口密封装置的工作原理,通过对密封效果的对比,综合分析了钢丝绳密封的关键技术,提出采用旋转密封以及分级密封结构,是研制密封效果好、使用寿命长的钢丝绳密封装置的方向.
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Key words
secondary seal,rotating seal,wire rope,long-stroke swabbing
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