Drilling companies like to know, as much as possible, where they stand the best chance of drilling. Horizontal hydraulic fracturing means every hole drilled is much more likely to produce gas (and oil) than a conventional vertical hole, but it’s still no guarantee. Not every hole produces. So to help eliminate as much guesswork as possible, drillers often purchase seismic test data.
Big trucks roll along roadways with large vibrators that emit ultrasonic waves into the ground (or in some cases “thump” the ground) and then record the echoes to draw a picture of the underground rock structure. Ever wonder what it looks like? Just watch the video below of ultrasonic trucks doing their work in Coshocton County, Ohio.