Drillers Find Ways To Reach Oil Trapped In Old Wells
Just a few years ago, there was a lot of news about fracking, the technique revolutionizing the oil-drilling business. That business has plummeted with the drop in the price of oil. Now, drillers are using everything from electrically-induced shock waves to acid to get out oil left behind by conventional drilling. Dave Fehling of Houston Public Media introduces us to plasma pulse technology.