Hydraulic Fracturing Design and Investigation of Hydraulic Fracture Effect on Cumulative Production in one of Iranian Ga

摘要

Hydraulic fracturing is a method of choice to improve production for the most of gas-condensate wells. In this work, hydraulic fracture effect on well production has been considered in one of Iranian gas condensate reservoirs. The target for propped hydraulic fracturing treatments is two sandstone layers with gross thickness of 101.7 ft and 95.1 ft at average depths 8725.45 of ft-TVD and 8823.75 of ft-TVD. In this study, different seven scenarios have been defined. For any scenarios, a hydraulic fracture has been designed. In the scenarios design, has been tried to attend all possible options of hydraulic fractures. In following, well cumulative production has been forecasted in both conditions without and with fracturing operation. The production forecast of seven scenarios represent that all scenarios increase cumulative production more than %19. In final, NPVs of the scenarios have been calculated and compared together and selected optimum scenario. The results are shown average fracture permeability is more effective than fracture length. Comparing NPVs of the scenarios represents NPV of Fourth Scenario is optimum. Since this is the first hydraulically fracture design in Iran, the design and results can be very useful for production planning of other Iranian tight gas reservoirs.