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Reasearch of Jam Release Technology for Freeze - in Master Valves of Gas Wellschristmas Tree on Pressure
Author(s): 
Pages: 32-34
Year: Issue:  1
Journal: PETROCHEMICAL INDUSTRY APPLICATION

Keyword:  气井采气树主控阀带压解卡研究;
Abstract: 天然气井口采气树主控阀在使用过程中,由于长期不进行开关操作,主控阀容易卡死,无法正常开启.现场对主控阀带压解卡技术进行了研究,提出了对阀门进行浸泡运动件、溶解污垢、两端压力平衡、主控阀开启工具、阀杆振动、U形专用解卡工具等一系列安全解卡技术,共成功解卡主控阀11只,节约阀门钻孔费用12万元以上,经济效益显著.
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