Field test of directional borehole radar in a hydrocarbon production well

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 can directly determine the targets location without rotating the receiving antennas. It is a new attempt for borehole radar used in oilfield exploration and development. We obtained an original formations conductivity curve which has a butterfly plot correlating with the deep investigation induction log (ILD) curves and the radar profiles at different azimuths. Both can illustrate the formations variation around the well, and combining with the conventional log curves, we can get a new method for formation evaluation. Therefore, the DBR is a very promising potential logging tool for reservoir exploration in petroleum industry.