E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/09 (2006.01) E21B 47/00 (2006.01) G01V 3/08 (2006.01) G01V 3/10 (2006.01) G01V 3/26 (2006.01)
Patent
CA 2676493
An apparatus for detecting a position of a component in an earth formation is disclosed. The apparatus includes: a transmitter configured to emit a first magnetic field into the earth formation and induce an electric current in the component, the transmitter having a first magnetic dipole extending in a first direction; and a receiver for detecting a second magnetic field generated by the component in response to the first magnetic field, the receiver having a second magnetic dipole extending in a second direction orthogonal to the first direction. A method and computer program product for detecting a position of a component in an earth formation is also disclosed. Apparatus and methods are also disclosed for estimating a position of a second borehole being drilled relative to an existing first borehole.
Bespalov Alexandre
Dubinsky Vladimir
Khokhar Rashid W.
Baker Hughes Incorporated
Cassan Maclean
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