Abstract: The effect of gaseous condensate-water on condensate-gas system used to be ignored in conventional condensate-gas system phase behavior test. Condensate gas resewoir exploitation prac-lice in home&abroad indicated that the effect of gaseous condensate-water on condensate-gas system phase behavior should not be ignored. So to instruct the condensate gas reservoir exploitation more efficiently, we must set up the condensate-gas system PVT phase test and compute the method of the consider-ing gaseous condensate-water. In this paper, we tried to explore and design the condensate-gas system PVT phase test method with abundant condensate-water, compared with the convention-al oil/gas two-phase equilibrium system test results, and ana-lyzed how the gaseous water content affect the condensate-gas system.

Key words: condensate gas reservoir, high-temperature&, high-pressure, condensate-water, oil/gas/water multi-phase e-quilibrium, PVT phase test