Method for setting and orienting a whipstock in a well conduit

The method of angularly orienting a whipstock having an arcuate tool directing face, and a whipstock anchor insertable in a packer installed in a well, said anchor and packer having longitudinally extending, cooperable key elements engageable when the anchor is assembled in the packer, comprising the steps of:

• (1) determining by a down hole directional survey the angular disposition of the key element in the installed packer relative to polar coordinates;
• (2) assembling the whipstock on the whipstock anchor with the whipstock being angularly adjustable relative to the whipstock anchor about an axis that will be coincidental with the casing axis;
• (3) selecting a cylindrical surface portion of said whipstock anchor and scribing an axial line thereon coincident with the angular position of the key element;
• (4) applying an annular card concentrically around the cylindrical surface on the whipstock anchor, said card having angularly spaced degree graduations thereon;
• (5) indicating the angular position of the whipstock relative to the inscribed line by a flexible line secured to the whipstock and stretched over the perimeter of said card while being held in a plane bisecting the arcuate face of the whipstock and containing the whipstock anchor axis;
• (6) fixing the whipstock in the adjusted position in the whipstock anchor, and
• (7) running the whipstock anchor with whipstock attached thereto into the well to engage the key element of the whipstock anchor with the key element of the packer.