Electricity aids in the search for oil

The apparent magic that created great oil fields out of grassy marshlands is not a product of the divining rod but the result of the application of scientific principles involving the fundamentals of the science of applied geophysics. A review of the various methods of geophysical prospecting for oil, in which electricity has played a large part, is presented here. In addition to strictly electrical methods, electrical measurements provide a means of recording the results of other methods.