| 摘要 |
A whipstock setting apparatus includes a whipstock with a mandrel secured thereto and depending therefrom. A cutter, or mill is connected to a work string and releasably connected to the whipstock. A packer assembly including a mechanical weight set packer and upper and lower cone and slip means are mounted on the mandrel above and below the packer. The mandrel is releasably connected to the packer assembly to prevent premature longitudinal movement therebetween and to accommodate relative longitudinal movement therebetween when desired. The components of the whipstock assembly and packer assembly are secured so as to maintain alignment with the face of the whipstock while lowering the whipstock in the well tubular member, after the mandrel is released for longitudinal movement relative to the packer assembly and after the whipstock is oriented in the well tubular member whereby the oriented whipstock and packer assembly are anchored in the well tubular member by longitudinal movement of the work string to minimize or eliminate changing the orientation of the whipstock. |
