摘要
在凝析气藏的降压开采过程中 ,当地层压力低于露点压力后 ,地层中将出现气、液两相。对于中高凝析油含量的中高渗砂岩凝析气藏 ,在消耗式开发方式下 ,凝析油采收率分别与原始凝析油含量、原始气油比、天然气采收率以及初期凝析气井米采气指数 (反映储集层物性 )之间的相关性良好。根据对大港油田凝析气藏矿场资料的研究 ,得出 4种计算凝析油采收率的经验公式 ,为计算凝析气藏的凝析油可采储量提供了便捷有效的方法。图 4表 1参
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.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2004年第2期109-111,共3页
Petroleum Exploration and Development
关键词
凝析气藏
凝析油
采收率
可采储量
经验公式
condensate gas reservoir
condensate
recovery
recoverable reserves
empirical formula
