Sensitivity Analysis of Parameters of Affecting Open-Flow Capacity of Gas Well in Changqing Gas Field

This paper quantitatively analyzes the effect of formation coefficient, producing water, non-Darcy flow factor D, formation pressure and skin factor on absolute open-flow capacity of gas well under different reservoir conditions. It comes to a conclusion that protecting formation against pollution, improving formation and reasonably utilizing formation energy are important for gas well to get high and steady production.