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    • 3. 发明申请
    • DOWNHOLE POLYMER PLUG AND LINER AND METHODS EMPLOYING SAME
    • 井下聚合物塞子和衬套以及使用它们的方法
    • WO2004092526A3
    • 2004-12-23
    • PCT/US2004010535
    • 2004-04-05
    • SHELL OIL COSHELL CANADA LTDZHANG JANE QINGCHANG BENJAMIN TAI AN
    • ZHANG JANE QINGCHANG BENJAMIN TAI AN
    • E21B29/10E21B33/12E21B33/13
    • E21B33/13E21B29/10E21B33/1208
    • A method of sealing an inner surface of a wellbore, said method comprising the steps of: providing a member having a preselected shape with a diametrical dimension and an axial dimension, said member being constructed of a material in which stored energy may be imparted and subsequently recovered at least in pan; subjecting said member to forces causing a reduction in said diametrical dimension and an increase in said axial dimension while imparting stored energy in said member; lowering said member into the wellbore to a desired location; and subjecting said member to conditions in the wellbore at said desired location to cause at least partial release of said stored energy and allow said member to expand to sealingly engage the inner surface of the wellbore at the desired location. TH1863 FF ERM 21
    • 一种密封井筒内表面的方法,所述方法包括以下步骤:提供具有径向尺寸和轴向尺寸的预选形状的构件,所述构件由其中可以施加储存的能量的材料构成,并且随后 至少在锅中恢复; 使所述构件经受导致所述径向尺寸减小的力和所述轴向尺寸的增加,同时将储存的能量传递给所述构件; 将所述构件降入井筒至所需位置; 以及使所述构件在所述期望位置处经历井筒中的条件以引起所述储存的能量的至少部分释放并且允许所述构件膨胀以在期望位置密封地接合井筒的内表面。 TH1863 FF ERM 21