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    • 1. 发明申请
    • Tubular Flotation With Pressurized Fluid
    • 管式浮选加压流体
    • US20070295513A1
    • 2007-12-27
    • US11667221
    • 2005-11-07
    • Mark BieglerBruce Dale
    • Mark BieglerBruce Dale
    • E21B43/10E21B33/14
    • E21B43/10
    • In one embodiment, a method of installing tubular conduits (for example, casing, liners, sand screens) into a deep or highly deviated borehole is disclosed. A lower plug is attached at one end of a portion of a tubular conduit. This end is inserted into a borehole. After insertion into the borehole the desired length of conduit intended to resist internal collapse forces and be substantially neutrally buoyant, a plug is attached at the upper end. The plug has a valve designed to enable fluid communication between the pressurized fluid section and the insertion string. A pump is attached to the valve and the pressurized fluid is added to the pressurized fluid section, after which the valve is closed. After the tubular conduit is inserted to the desired depth, the valve is opened allowing the pressurized fluid flow out of the pressurized fluid section. Conventional well construction activities may then resume.
    • 在一个实施例中,公开了将管状导管(例如,套管,衬垫,砂筛)安装到深度或高度偏斜的钻孔中的方法。 下管塞连接在管状导管的一部分的一端。 将此端插入井眼。 在插入井眼之后,旨在抵抗内部坍塌力的所需长度的导管并且基本上是中性浮力的,在上端连接有塞子。 塞子具有设计成使加压流体部分和插入柱之间能够流体连通的阀。 泵连接到阀上,加压流体被加到加压流体部分,之后阀关闭。 在将管状导管插入所需深度之后,打开阀门,允许加压流体从加压流体部分流出。 然后可以恢复传统的建筑活动。