Induction logging device with a pair of mutually perpendicular bucking coils

Patent · Tue Apr 28 00:00:00 EDT 1981

OSTI ID:5745169

Koelle, A R; Landt, J A

An instrument is disclosed for mapping vertical conductive fractures in a resistive bedrock, magnetically inducing eddy currents by a pair of vertically oriented, mutually perpendicular , coplanar coils. The eddy currents drive magnetic fields which are picked up by a second, similar pair of coils.

• Assignee: Department of Energy
• Patent Number(s): US 4264862
• OSTI ID: 5745169
• Resource Relation: Patent File Date: Filed date 20 Aug 1979
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
47 OTHER INSTRUMENTATION
HOT-DRY-ROCK SYSTEMS
FRACTURES
INDUCTION LOGGING
EQUIPMENT
BOREHOLES
CAVITIES
ELECTRIC LOGGING
ENERGY SYSTEMS
FAILURES
GEOTHERMAL SYSTEMS
WELL LOGGING
150303* - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging
150301 - Geothermal Exploration & Exploration Technology- Geophysical Techniques & Surveys
440400 - Well Logging Instrumentation