RANGE POSITIONING TOOL FOR USE WITHIN A CASING OR LINER STRING

RANGE POSITIONING TOOL FOR USE WITHIN A CASING OR LINER STRING

A method for detecting a downhole position in a wellbore comprises: providing a set of signal emitters, each signal emitter in the set attached to a different position in the wellbore and each signal emitter configured to emit a signal having a unique characteristic; and providing a measurement tool...

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Hauptverfasser: REEVES, MICHAEL, CAMWELL, PAUL L
Format: Patent
Sprache:eng ; fre
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator REEVES, MICHAEL
CAMWELL, PAUL L
description A method for detecting a downhole position in a wellbore comprises: providing a set of signal emitters, each signal emitter in the set attached to a different position in the wellbore and each signal emitter configured to emit a signal having a unique characteristic; and providing a measurement tool comprising a signal detector configured to detect the different signals and a rotation device configured to rotatably contact a wall of the wellbore. The measurement tool is moved through the wellbore and one or more positions of the measurement tool in the wellbore is determined by detecting one or more of the signals and identifying the position of one or more of the signal emitters by the unique characteristic of each detected signal, and by detecting the number of rotations in a ranging wheel of the rotation detector that contacts the wellbore.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title RANGE POSITIONING TOOL FOR USE WITHIN A CASING OR LINER STRING
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