Whipstock setting method and apparatus

Abstract

A whipstock setting apparatus including a whipstock with an anchor-packer connected on its lower end and a cutter releasably connected to the upper end of the whipstock with a fluid line connecting from the bore of the cutter to the anchor-packer for setting of the anchor-packer whereby the whipstock can be set in the cased well bore at a level above the bottom without having to make a round trip with the well string on which it is lowered into the cased well bore. The method of setting a whipstock includes the steps of lowering the apparatus into the cased well bore on a well string, orienting the whipstock, checking the orientation of the whipstock with a wire line survey instrument run through the well string, pressuring the well string to set the anchor-packer and lowering and rotating the well string to commence milling after the anchor-packer has been set.

Dependencies are inferred from the claim text.