NUCLEAR MAGNETIC RESONANCE TOOL WITH EXTERNAL MAGNETS

Methods and systems are provided that enable logging while drilling NMR measurements to be made with magnets placed outside of the drill collar and magnetically permeable members to control the magnetic field gradient. A set of magnets can be disposed on and/or embedded on a drill collar, with an an...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ANATOLY DEMENTYEV, DAVID T. OLIVER, TIMOTHY HOPPER
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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