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One trip cement and gravel pack system

机译:一站式水泥和砾石充填系统

摘要

An apparatus and method is provided that allows an operator to drill a well into a formation requiring treatment or gravel packing in a single pass, then to lower and position the liner and production strings simultaneously. The invention allows cementing of the liner prior to any treatment or gravel packing, and provides an integral circulation system to allow formation treatment or gravel packing of the production string. Once treatment or gravel packing is completed, the invention provides mechanical fluid loss control as the circulation system is pulled out of the hole.
机译:提供了一种装置和方法,其允许操作员单程将井钻入需要处理或砾石充填的地层中,然后同时降低和定位衬管和生产管柱。本发明允许在任何处理或砾石充填之前对衬里进行胶结,并提供整体循环系统以允许对生产管柱进行地层处理或砾石充填。一旦处理或砾石充填完成,当将循环系统从孔中拉出时,本发明提供机械流体损失控制。

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