Patent ID: 9624743
Date: 2017-04-18
CPC Classifications: E21B,F16L

Claim:
1. An apparatus for maneuvering a tool string within a borehole of a subterranean well, the apparatus comprising: a magnetic tractor casing, the magnetic tractor casing being a cylindrical tubular member with a central bore, a first end and a second end opposite the first end; a tractor body located within the central bore of the magnetic tractor casing, the tractor body being an elongated member; a plurality of magnets spaced along an outer surface of the tractor body, the plurality of magnets operable to generate a second magnetic field to interact with a first magnetic field of the magnetic tractor casing, to maintain an annular space between the tractor body and the magnetic tractor casing; and a plurality of angled opening assemblies spaced along the tractor body, each of the angled opening assemblies shaped to direct a fluid away from the tractor body, to maintain an annular space between the magnetic tractor casing and the borehole of the subterranean well.