The impact of reservoir parameters and well construction on gas well productivity

Abstract

The aim of this paper was to present the influence of selected reservoir parameters and well construction on the productivity of a gas well, using the example of a natural gas reservoir with high nitrogen content. Data from an exemplary well were used to carry out a variant assessment of the productivity of wells at different stages of reservoir exploitation, taking into account single- and two-phase gas-condensate mist flow in the well. The reservoir development process is briefly described at the beginning. Subsequently, the issues of gas inflow to the well, gas flow in the well and nodal analysis were discussed. The last part of the paper focuses on the variant assessment of the productivity at different stages of reservoir exploitation using a computational algorithm for single-phase and two-phase gas-condensate mist flow in the well.