Abstract: Qianmiqiao buried hill gas condensate reservoir has been recently discovered, it is one of complicated and promising reservoirs in Dagang oil field. In this paper, a three-dimensional compositional simulator has been used match phase behavior and history. Many geology parameters of the simulation data is am-biguous, according to their affection on the simulation results,
the range of these parameters are limited. The cooperation a-mong geology-engineering play an important role in avoiding ambiguous solutions. According to well pearmete, many field development schemes are designed and by economic optimiza-tion, several most economic ones are be recommended.

Key words: gas condensate reservoir, numerical simula-tion, optimizing design