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Fracture is an important geologic phenomenon which is crucial for petroleum and geothermal exploration and exists in various scale and geometry in nature. Borehole radar is an important tool which can image single fractures several to tens meters away from borehole in thousands of meters depth. However, the detectability of various fractures is not clear. We analyzed the radar response to a thin fracture...
Borehole radar has great advantages in practical applications because of its deep detection range and relatively superior resolution, which has been applied to broader areas and has experienced rapid development in recent years. We have developed a prototype of directional borehole radar (DBR) with two receiving antennas along the axis and the maximum radiation direction difference of 180°, which...
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