New rotating magnet ranging systems useful in oil sands, CBM developments

Rotating magnet ranging (RMR) is the one of the latest technologies used in development drilling for coalbed methane and oil sands. Tools developed over the last 25 years by Vector Magnetics LLC, Ithaca, NY, enable highly accurate electromagnetic downhole proximity measurements. Magnetic ranging methods quantify the distance between a magnetic source and detector. They are generally more precise than conventional gyro or MWD tools, and are thus used in projects with tight constraints, requiring maximum possible accuracy. Drillers routinely use magnetic ranging to guide horizontal wells to intersect vertical wells.Passive methodsPassive magnetic systems measure changes in the earth's m...

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