System and method for employing alternating regions of magnetic and nonmagnetic casing in magnetic ranging applications

Details for Australian Patent Application No. 2009271480 (hide)

Owner SCHMLUMBERGER TECHNOLOGY B.V.

Inventors Clark, Brian

Agent Griffith Hack

Pub. Number AU-A-2009271480

PCT Pub. Number WO2010/008634

Priority 61/075,489 25.06.08 US

Filing date 6 April 2009

Wipo publication date 21 January 2010

International Classifications

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

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 3/18 (2006.01) Electric or magnetic prospecting or detecting - specially adapted for well-logging

Event Publications

17 February 2011 PCT application entered the National Phase

  PCT publication WO2010/008634 Priority application(s): WO2010/008634

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