E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
324/9
E21B 47/00 (2006.01) E21B 47/02 (2006.01) E21B 47/022 (2006.01) G01V 3/24 (2006.01)
Patent
CA 1234870
F-2861 METHOD FOR PREVENTING THE DRILLING OF A NEW WELL INTO ONE Of A PLURALITY OF PRODUCTION WELLS ABSTRACT A logging sonde injects alternating current into the well casings of a plurality of producing wells at desired subsurface depth points. The resulting magnetic fields created around the well casings of the producing wells are detected by a magnetometer in a new well being drilled to prevent drilling into one of the production wells.
492734
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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