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US 2012/0234533 A1Published application
Precision marking of subsurface locations
AssigneeBaker Hughes Incorporated
InventorSonghua Chen
Life of this patent
Estimating the term…
Abstract
A method for performing a downhole operation includes marking at least one location in a wellbore using a magnetized material. The magnetized material may generate a magnetic field stronger than a magnetic field generated in the wellbore by a surrounding formation.
Claims19
A method for performing a downhole operation, comprising:
- marking at least one location in a wellbore using a magnetized material, the magnetized material generating a magnetic field stronger than a magnetic field generated in the wellbore by a surrounding formation.
An apparatus for performing a downhole operation, comprising:
- an magnetized material configured to be positioned along a wellbore, the magnetized material being further configured to generate a magnetic susceptibility greater than a magnetic susceptibility of a surrounding formation.
An apparatus for performing a downhole operation, comprising:
- a plurality of markers configured to be positioned along a wellbore, each marker being configured to generate a unique signal in response to a received signal.
Dependencies are inferred from the claim text.