APPARATUS AND METHODS FOR DRILLING WELLBORES BY RANGING EXISTING BOREHOLES USING INDUCTION DEVICES

In one aspect a method of drilling a borehole is disclosed, wherein the method includes generating a primary electromagnetic field with a transmitter in a second borehole spaced from the first borehole, the primary electromagnetic filed causing electrical current in the conductive material of the fi...

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Bibliographische Detailangaben
1. Verfasser:	BESPALOV, ALEXANDRE N
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	In one aspect a method of drilling a borehole is disclosed, wherein the method includes generating a primary electromagnetic field with a transmitter in a second borehole spaced from the first borehole, the primary electromagnetic filed causing electrical current in the conductive material of the first borehole, measuring a secondary electromagnetic field at a receiver in the second borehole, the electromagnetic field being responsive to the electrical current flowing in the conductive material in the first borehole, and determining a location of the first borehole using the measured secondary electromagnetic field.