Apparatus and method for penetrating cement surrounding a tubular
作者： Kristoffer Brække , Roger Antonsen
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摘要: Apparatus and method for penetrating cement (300) surrounding a tubular (200) cemented to formation (400). The apparatus comprises bore (10) through the wall (200), an intermediate fluid channel (102) in insert (100) within bore. An inner sleeve (120) may be disposed on interior surface of (200). is movable between closed position wherein connection prevented, open allowed. abrasive and/or etching supplied remove or piston assembly.
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