What is hydraulic fracturing?
Fracturing is a means of opening the fissures in the Barnett Shale formation by the use of hydraulic pumps and fracturing fluid. Fresh water stored in frac pits is pumped in stages into the Barnett Shale formation. Once fractures in the rock have been created, sand (like beach sand) is mixed with the fresh water and pumped into these fractures to help prevent the fracture from closing back once the hydraulic force is reduced. By packing or filling of these fractures with sand, this will allow the formation to produce into the new drilled well bore (hole) and bring gas to surface. This type of completion technique is what makes the Barnett Shale productive & economical.