Increased Well Productivity from the Use of Carbon Dioxide to Foam Fracturing Fluids During a Refracturing Treatment in Saudi Arabia (SPE 17711), authored by Mohammed Al-Dhamen, Saudi Aramco, and Eduardo Soriano, Halliburton, reports the first CO2 foam refracture treatment in Saudi Arabia as a highly successful treatment.
Specifically, the results concluded “a 50% productivity increase; allowed for fast and effective cleanup compared to wells using conventional water based frac fluids; reduced water usage – critical in an area of limited water resources.”
These are points which have been promoted for CO2 foams and are recognized by an international E&P. The following chart depicts the increase in productivity of the well as a result of the CO2 foam refracture treatment.
Productivity Results of the CO2 Foam Refracture Treatment
Source: SPE 177112