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

• Main Author: BESPALOV, ALEXANDRE, N
• Format: Patent
• Language: English; French; German
• Published: 02.12.2015
• Subjects: 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

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...