石油钻采工艺Issue(2)：67-70,4.
缝洞型凝析气藏衰竭开采动态实验研究
Dynamic experiment study on depletion development of condensate gas reservoir with fracture and cave
摘要
Abstract
As one of the unconventional gas reservoirs nowadays, carbonate condensate gas reservoir with fracture and cave has the charac-teristics of diverse pore types, deep bury, complex structure, strong reservoir heterogeneity, weak connectivity and great difference in natural energy distributed in each reservoir space. The particularity of condensate gas flowing in carbonate reservoirs is determined by the double medium reservoir properties; meanwhile, the complex phase characteristics of condensate gas in porous media further increases the difficulty of these reservoirs ef-ficient development. Starting from the point of view of dynamic depletion development, the depletion tests have been done under different conditions such as different media, different size of aquifer, depletion rate and the connective type of fracture and cave, by using oil-rich condensate gas tested in artificial full diameter fracture-cave carbonate core. The results demonstrate that porous media has contributed to the condensate oil recovery; the recovery percent of reserves in cores with different connective type of fracture and cave is different, and the sequence as followed that connecting at the top is smallest, connecting at the bottom is largest and connecting at horizon is in the middle;the presence of aquifer is helpful for oil recovery, and the larger the aquifer size, the higher the oil recovery;the depletion rate has little effect on oil recovery;the oil recovery could be higher if the cave in the cores is filled by sand, since the porous media interface influence and resist effect caused by gravel. The study result Has certain guiding significance for developing the carbonate condensate gas reservoir with fracture and cave.关键词
缝洞型碳酸盐岩/全直径岩心/衰竭实验/凝析气藏/人工造缝造洞Key words
fracture and cavity carbonate reservoir/full diameter core/depletion experiment/condensate gas reservoir/artificial fracture and cave分类
能源科技引用本文复制引用
郭平,王娟,刘伟,杜建芬,汪周华..缝洞型凝析气藏衰竭开采动态实验研究[J].石油钻采工艺,2013,(2):67-70,4.基金项目
博士点基金“高温高压多组分凝析气非平衡相态理论模型研究”(编号:20115121110002) （编号:20115121110002）
