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《Petroleum Exploration and Development》 2004-02
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Empirical formulae for recoverable condensate reserves

YANG Guang-rong, YU Yuan-zhou, TAO Zi-qiang, LI Bao-rong, YANG Bo(Oil and Gas E&D Technology Research Center, Dagang Oil Field Company, PetroChina, Tianjin 300280, China)  
Two phases, gas and liquid, exist in the formation when the pressure drops to below the dew point pressure in the pressure depletion process of the condensate gas reservoir. For the mid-high permeability sandstone condensate gas reservoir with mid-high condensate content, when developed under depletion mode, the condensate recovery has good correlativity with original condensate content, original gas oil ratio, gas recovery and initial gas productivity index per meter of condensate gas well (reflecting the physical properties of the formation), respectively. By studying the data of condensate gas reservoirs in Dagang Oilfield, 4 empirical formulae for condensate recovery calculation are developed, providing a convenient and effective way for calculating the recoverable condensate reserves of the condensate gas reservoir.
【CateGory Index】: TE372
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