Patent ID: 8813856

Claim:
In a wellbore comprising production tubing extending from the earth surface into a production strata beneath the earth surface and an indexing deflector assembly that has a deflector shoe directing a milling or drilling tool laterally of a longitudinal axis of the production tubing and is mounted for axial reciprocation within the wellbore and an indexing device connected to the deflector shoe to rotate the deflector shoe about a longitudinal axis of the production tubing when the deflector shoe is raised and lowered in the well bore; wherein the indexing deflector assembly is connected to the production tubing in a downhole section of the wellbore distant from earth surface; and a shift tool assembly connected between the downhole device and a portion of the production tubing, the shift tool assembly is configured to sequentially lift and lower the deflector shoe relative to an upper portion of the production tubing to change the radial position of the deflector shoe.