Energy & Environment
Drillers Find Ways To Reach Billions Of Barrels Of Oil Trapped In Old Wells
Posted on · Just a few years ago, you were hearing a lot 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 bring up oil left behind by conventional drilling.