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BK361系列补偿式热采封隔器

CHINA PETROLEUM MACHINERY(2003)

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Abstract
为了降低注汽作业费用,减少操作步骤,研制了BK361系列补偿式热采封隔器.这种热采封隔器是在热敏金属扩张式封隔器的基础上改进而成的,同时结合了井下补偿器的工作原理,使其在注汽过程中既能密封油套环形空间又能起到补偿的作用.它具有坐封时间短,解封迅速可靠和密封效果好的特点.现场共计应用了160套,平均坐封时间16 min,平均注汽压力12.7 MPa,平均套压1.9 MPa,平均井深1 258.3 m,所有封隔器均顺利解封.
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