Closed-loop reservoir stimulation system offers operators an environmentally friendly alternative to traditional methods with promising production increases.

When three of the Big Four diversified service firms are discussing sliding sleeves in conference calls, and key Bakken players are mentioning them to Wall Street analysts, something's up.

?New fluid starts with high viscosity to carry proppant through surface equipment and long horizontal sections, then breaks in the formation to maximize the complexity of the created fracture network.