Abstract: The oil-gas distribution model for conventional gas condensate reservoir is not used to properly deal with the bottom-hole pressure in gas condensate reservoir. A new 3-realm composite well testing model of such a reservoir is developed in this paper. The external boundaries with infinite, enclosed and constant pressures are taken into consideration for educing expressions of bottom-hole pressures under different external boundaries and plotting corresponding type curves. The dynamic changes and affected factors to the bottom-hole pressure in this reservoir are analyzed and discussed. The study shows that this new model is more closed to the real conditions in the process of gas condensate production, and it can be as a guide for performance analysis of such reservoirs.

Key words: gas condensate reservoir, well testing, model, bottom-hole pressure, dynamic analysis, performance analysis