发明名称 Coiled tubing conveyed milling
摘要 Milling in casing that is over 4-1/2 inches is done with coiled tubing that is anchored against torque reaction. An improved debris catcher is part of the bottom hole assembly to capture cuttings from the milling. A thruster can be used to maintain weight on the mill during the milling. The coiled tubing supports a mud motor to drive the mill. Return fluid is separated from the cuttings and returned to the surface.
申请公布号 GB2432865(A) 申请公布日期 2007.06.06
申请号 GB20070003090 申请日期 2005.07.19
申请人 BAKER HUGHES INCORPORATED 发明人 GERALD D LYNDE;JOHN P DAVIS
分类号 E21B29/00;E21B27/00 主分类号 E21B29/00
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