会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明专利
    • A RETRIEVABLE BRIDGE PLUG
    • CA2615737C
    • 2011-01-18
    • CA2615737
    • 2006-07-04
    • XU JIAN
    • XU JIAN
    • E21B33/134
    • A retrievable bridge plug used in oil and gas wells comprises a setting and anchoring mechanism, a locking and releasing mechanism and a sealing and anti-adhering mechanism. The bridge plug in which a self-locking mechanism is placed can be lowered through an oil tubing or wireline and provide reliable bi-directional sealing , and can be taken out by a special tool after setting in order to be used repeatedly after simple maintenance . By replacing its mandrel, the bridge plug can be refitted into a squeezing bridge plug , a conventional bridge plug (mandrel sealing) or a hook-wall bridge plug (mandrel through) to be used in a temporary/permanent and selective blocking operation. Also, the bridge plug can be associated with other downhole tools to perform well test, layer protection and well killing.
    • 5. 发明专利
    • A RETRIEVABLE BRIDGE PLUG
    • CA2615737A1
    • 2007-01-11
    • CA2615737
    • 2006-07-04
    • XU JIAN
    • XU JIAN
    • E21B33/134
    • A retrievable bridge plug used in oil and gas wells comprises a setting and anchoring mechanism, a locking and releasing mechanism and a sealing and anti- adhering mechanism. The bridge plug in which a self-locking mechanism is placed can be lowered through an oil tubing or wireline and provide reliable bi-directional sealing , and can be taken out by a special tool after setting in order to be used repeatedly after simple maintenance . By replacing its mandrel, the bridge plug can be refitted into a squeezing bridge plug , a conventional bridge plug (mandrel sealing) or a hook-wall bridge plug (mandrel through) to be used in a temporary/permanent and selective blocking operation. Also, the bridge plug can be associated with other downhole tools to perform well test, layer protection and well killing.