Investigation into the effect of capillary number on productivity of a lean gas condensate reservoir

The main objective of this study is to provide a comprehensive investigation into the effect of Capillary number (N_Ca) on production from the lean gas condensate reservoirs and to show the importance of N_Ca in these types of reservoirs. In the current study a gas condensate reservoir has been simulated and validated using field and PVT data. The effect of N_Ca on the parameters such as producing gas flow rate, bottom-hole pressure, average reservoir pressure, the amount of condensate in the reservoir and the condensate saturation versus the distance from the production well has been investigated. It was found that N_Ca can increase the relative permeability of the gas followed by the reduction in condensate formation and pressure drop in the vicinity of wellbore. Furthermore, the results stated that N_Ca exists in about 10ft away from the well and affects mainly the well productivity parameters such as bottom-hole pressure and gas flow rate. However, it does not affect the average reservoir pressure and condensate throughout the reservoir as much as the near wellbore parameters.