Development of Fracture Fluid Additive That Will Enhance Flowback and Recovery From Gas Shales

David DiCarlo and Quoc P. Nguyen

One of the keys for enhancing recovery from gas shales is to maximize the flowback of the fracturing fluid.

We propose to develop a surfactant as an additive that can be applied to either water based or CO2 foam fracturing fluids. This additive will act to lower the interfacial tension (IFT) between brine and the gas in place. This will decrease the capillary forces binding the water to the shale, and will increase the water flowback for enhanced gas and condensate recovery.