关键词: 碳酸盐岩, 凝析气藏, 组分粗化, 三重介质, 传导系数, 数值模拟

Abstract:

In order to correctly stimulate the development performance of the carbonate rock watercontaining gas condensate reservoir with the triple media of pores，caverns and fractures，equivalent numerical simulation method，i.e.；adjustment compositional conduction coefficientαmethod is presented，which is suitable for compositional upscaling for the types of gas condensate reservoirs.The relationship of compositional coefficientαchanges as composition total molar fraction is calculated through setting up single media fine model for single rock block.Besides，the modeling result is correlated with geological factors upscaling and the rock block system gas recovery calculated by dual media model after geological factors upscaling and compositional upscaling.The consequences indicate that to triple media carbonate rock watercontaining gas condensate reservoir，there is bigger error if the dual media model by geological factors upscaling is directly used to simulate，and the dual media model by geological factors and compositional upscaling can correctly and equivalently simulate.

Key words: carbonate rock, gas condensate reservoir, compositional upscaling, triplemedia, conduction factor, numerical simulation