A Downhole Radar System for Fracture Detection
- Key words
- Geophysical Surveys; Exploration; Electromagnetic; Conductivity; Dipole; Fractures
- Conference
- Geothermal Resources Council Transactions
- Year
- 1986
- Session
- Geophysical surveys; Fractures; Downhole radar; Equipment de
- Language
- English
Abstract
A borehole radar prototype was designed based on theoretical considerations. Experiments were conducted at a granite quarry where an existing flam cut slot was used to simulate a fracture. The radar returns form this simulated fracture were detectable in boreholes located at distances of up to 12 meters from the fracture. Engineering design for a downhole radar system is almost complete. This system, including the directional antennas, is fabricate into a tool to be used in a borehole.
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