Reservoir stimulation difficulty and countermeasures for SF Gas Field

The monitoring fracturing pressure fluctuate greatly, and the production is poor after the treatment. The main reasons are analyzed to be near-wellbore obvious multi-fracture effect, difficult extension of the main crack, low fracturing fluid efficiency, and small effective fracture length. Through the optimization of delivery capacity and proppant slug pumping time, and combined with the fiber sand carrying technology and low concentration guar gum fracturing fluid and efficient flowback technology, the monitoring pressure becomes stable during pre-liquid phase and fracturing fluid flow back fast with high flowback rate. Fracturing fluid efficiency and stimulation effect are increased effectively. The technology is applied on Well MP75, Well SF6, etc. with greatly improved effect. This study results provide a reference for similar gas field exploration and development.