Through-bit reconfigurable NMR logging tool

Through-bit reconfigurable NMR logging tool

An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the dis...

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Hauptverfasser: Fanini, Otto, Edwards, Carl M, Forgang, Stanislav, Ramirez, Marc Stephen
Format: Patent
Sprache:eng
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator Fanini, Otto
Edwards, Carl M
Forgang, Stanislav
Ramirez, Marc Stephen
description An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the distal end of the drill tubular leading into the borehole, and a retaining device configured to allow at least a section of the NMR tool to protrude through the opening of the drill tubular and prevent an unrestrained release of the NMR tool through the opening. The apparatus also includes a transmitter antenna and a receiver antenna coupled to the NMR tool, wherein the transmitter antenna and/or the receiver antenna are extendable from the NMR tool.
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subjects DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Through-bit reconfigurable NMR logging tool
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