Conforming Magnet Tool for Recovery of Downhole Debris
AssigneeBaker Hughes Incorporated
InventorEllen Ellis Rud
Life of this patent
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Abstract
A debris removal tool for removal of metallic debris from within a wellbore. The debris removal tool includes a housing defining a central bore and a plurality of magnetic members retained within the central bore and axially moveable therewithin, the magnetic members each presenting a contact surface to contact and form a magnetic attachment to the metallic debris.
Claims12
A debris removal tool for use in removing metallic debris from a wellbore, the debris removal tool comprising:
- a housing defining a central bore;
- and
- a plurality of magnetic members retained within the central bore and axially moveable therewithin, the magnetic members each presenting a contact surface to contact and form a magnetic attachment to the metallic debris.
A debris removal tool assembly for use in removing metallic debris from a wellbore, the debris removal tool assembly comprising:
- a running string that is run into the wellbore from surface, the running string having a distal end;
- a debris removal tool affixed to the distal end of the running string, the debris removal tool having:
- a housing defining a central bore;
- and
- a plurality of magnetic members retained within the central bore and axially moveable therewithin, the magnetic members each presenting a contact surface to contact and form a magnetic attachment to the metallic debris.
A method for removing metallic debris from a wellbore, the method comprising the steps of:
- disposing a debris removal tool assembly into the wellbore, the debris removal tool having a housing defining a central bore and a plurality of magnetic members retained within the central bore and axially moveable therewithin, the magnetic members each presenting a contact surface to contact and form a magnetic attachment to the metallic debris;
- contacting the metallic debris with contact surfaces of at least some of the magnetic members to form a magnetic attraction therewith;
- and
- removing the debris removal tool assembly and metallic debris from the wellbore.
Dependencies are inferred from the claim text.