发明名称 |
Reverse section milling method and apparatus |
摘要 |
<p>A method and apparatus for milling a section of casing in an upward direction, utilizing a downhole hydraulic thrusting mechanism for pulling a section mill upwardly. A downhole motor and torque anchor can be used to rotate the section mill, or the mill can be rotated by a work string. A stabilizer above the section mill can be used to stabilize the mill relative to the casing being milled. A spiral auger below the section mill can be used to move the cuttings downwardly.</p> |
申请公布号 |
AU2002348294(B2) |
申请公布日期 |
2007.03.29 |
申请号 |
AU20020348294 |
申请日期 |
2002.11.20 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
GERALD D LYNDE;JOHN P DAVIS |
分类号 |
E21B29/00;E21B10/32;E21B47/09 |
主分类号 |
E21B29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|