发明名称 |
WHIPSTOCK AND INSTALLING AND RETRIEVING TOOLS |
摘要 |
An improved tubing exit whipstock and tools for installing and retrieving the whipstock are provided for directing movement of well tools from a first wellbore to a second wellbore extending therefrom. The tubing exit whipstock may include a generally cylindrical deflector body with a longitudinal passageway extending therethrough. The deflector body may also include a tapered surface for deflecting well tools from the first wellbore to the second wellbore. In one embodiment of the present invention, a mechanical connector may be provided for attaching the deflector body to an orienting and locking device to releasably install the whipstock at a selected downhole location. In another embodiment, a first fishing neck profile may be provided within the longitudinal passageway to provide means for releasably coupling the deflector body with a running tool for installing the tubing exit whipstock at a selected downhole location within the first wellbore. In yet another embodiment, the fishing neck may provide means for releasably coupling the deflector body with a pulling tool for removing the tubing exit whipstock from the selected downhole location within the first wellbore. |
申请公布号 |
WO9845568(A3) |
申请公布日期 |
1998.12.03 |
申请号 |
WO1998US06603 |
申请日期 |
1998.04.03 |
申请人 |
DRESSER INDUSTRIES, INC. |
发明人 |
SAURER, DAN, P.;STEELE, DAVID, J. |
分类号 |
E21B7/06;E21B7/08;E21B23/06;E21B31/20 |
主分类号 |
E21B7/06 |
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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