"While these kinds of increases are important to traditional drillers, they’re crucial in the shale industry, where output can start falling within days of a well being tapped," Bloomberg reports. R.T. Dukes, an upstream analyst at Wood Mackenzie in Houston, "estimates that there are about 100,000 horizontal wells that could be restimulated."
Some risks are involved, Bloomberg reports. "If poorly executed, the maneuver could take oil from the producing zones of other wells, or worse yet, ruin a reservoir. Then there’s the concern that some industry analysts have that a refrack only accelerates the flow without increasing the actual total output over the life of the well. EOG is among the drillers that remain reluctant to start using the procedure." (Read more)