Multiple magnetic sensor ranging method and system

Details for Australian Patent Application No. 2009257857 (hide)

Owner SCHLUMBERGER TECHNOLOGY B.V.

Inventors Clark, Brian

Agent Griffith Hack

Pub. Number AU-A-2009257857

PCT Pub. Number WO2009/151867

Priority 61/088,035 12.08.08 US; 61/061,542 13.06.08 US

Filing date 15 May 2009

Wipo publication date 17 December 2009

International Classifications

E21B 47/00 (2006.01) Survey of boreholes or wells

G01B 7/14 (2006.01) Measuring arrangements characterised by the use of electric or magnetic means - for measuring distance or clearance between spaced objects or spaced apertures

G01V 3/26 (2006.01) Electric or magnetic prospecting or detecting

Event Publications

3 February 2011 PCT application entered the National Phase

  PCT publication WO2009/151867 Priority application(s): WO2009/151867

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