FREMGANGSMAATE OG APPARAT FOR AA MAALE EN ELEKTRISK EGENSKAPVED EN UNDERJORDISK FORMASJON

The resistivity of a geologic formation is measure through drillpipe or casing by applying a low frequency bipolar voltage to the casing and to a ground electrode and traversing the casing with a tool having contractors which are connected to a differential amplifier to detect a differential voltage...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KLEIN, JAMES D, KINGMAN, JOHN E.E, GARD, MICHAEL F
Format:	Patent
Sprache:	nor
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!