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    • 91. 发明授权
    • Well abandonment plug
    • 好放弃插头
    • US06880642B1
    • 2005-04-19
    • US10365373
    • 2003-02-12
    • Jonathan GarrettJoseph LeRougeMichael Taylor
    • Jonathan GarrettJoseph LeRougeMichael Taylor
    • E21B23/06E21B33/129E21B33/134E21B23/01E21B33/13
    • E21B23/06E21B33/129E21B33/134
    • A method and apparatus of plugging and abandoning a well includes using a plug apparatus and installing bentonite elements in an oil well production casing having a bore. The plug apparatus is lowered into the production casing bore to a selected elevation using a slick line or the like. The apparatus has a tool body and slip dies that are movably mounted upon the tool body to move between extended and retracted positions. Afer the tool body is positioned at a selected location within the casing bore, tension is applied to the slick line to move the slip dies to an extended position wherein the slip dies engage the casing and secure the tool body in a desired location. The casing bore is then displaced with water above the tool body. Bentonite elements are then dumped into the water filled wellbore. The bentonite elements are allowed to swell to form a plug. The tool body can be retrieved from the casing bore if desired.
    • 堵塞和放弃井的方法和装置包括使用塞子装置并将膨润土元件安装在具有孔的油井生产套管中。 使用光滑线等将塞子装置下降到生产套筒孔中至选定的高度。 该装置具有可移动地安装在工具主体上以在延伸位置和缩回位置之间移动的工具主体和滑模。 将工具主体定位在套管孔内的选定位置处,将张力施加到光滑线以将滑动模具移动到延伸位置,其中滑动模具接合壳体并将工具主体固定在期望的位置。 然后套管孔随着水在工具主体上方移动。 然后将膨润土元素倾倒到充满水的井筒中。 使膨润土元素膨胀形成塞子。 如果需要,可以从套管孔取回工具主体。