The researchers investigated why a borehole at Auchi Polytechnic in Nigeria experienced loss of circulation during drilling. They used electrical resistivity techniques to study the layers underground. They found that the loss occurred at a depth of 36m in permeable, aerated zones with high resistivity. The void spaces in the soil layer were not suitable for drilling. The study suggests that pre-drilling geophysical investigations are crucial for understanding the subsurface geology before starting a borehole project.