Analysis on Influence Factors of Commercial Gas Flow in Condensate Gas Reservoir

Condensate gas reservoir has the important role in gas field production with high economic value.Rigorously enforcing commercial gas flow standard is the premise of ensuring production benefit of the geologic reserves in the gas reservoir,but DZ/T 0217—2005 Specifications of Oil and Gas Reserves Calculation can' t reflect the effect of the condensate oil on the commercial gas flow in the condensate gas reservoir.Based on the computational mode of the commercial gas flow in the condensate gas reservoir,each factor affecting the commercial gas flow is analyzed quantitatively in certain western condensate gas reservoir.The re-sults show:①compared with dry gas reservoir,the commercial gas flow in the condensate gas reservoir is influenced by price,content of the condensate oil and light ends fee also;②the commercial gas flow in the condensate gas reservoir decreased with the increase of natural gas price,condensate oil price and condensate oil content,and increased with the increase of burial depth of the gas reservoir,light ends fee and decline rate;③the most sensitive factor is the burial depth of the gas reservoir,and the more ones are natural gas price,condensate oil price and condensate oil content,and the less ones are light ends fee and decline rate.The method proposed in this paper is also available to analysis on influence factors of the commercial gas flow in the gas reservoir with sulfurous and other complex components.