Integrated magnetic ranging tool

Communications: electrical – Audible indication – Explosive

Reexamination Certificate

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Details

C340S686100, C175S040000

Reexamination Certificate

active

07321293

ABSTRACT:
An improvement in a tool of the type which is adapted for connection into a drilling string, which tool is adapted to perform a function in the drilling string as a first function. The improvement is a magnetic field source incorporated with the tool so that the tool is adapted to perform a magnetic field source carrying function as a second function. The first function is unrelated directly to the second function.

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Grills, Tracy L., “Magnetic Ranging Technologies for Drilling Steam Assisted Gravity Drainage Well Pairs and Unique well Geometries . . . ,” SPE/Petroleum Society of CIP/CHOA79005.

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