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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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