摘要
塔河碳酸盐岩缝洞型油藏,其储集空间以溶洞为主,裂缝作为主要的沟通通道,具有网络状油藏的特征。基于管流理论,建立了一种新的水动力学等效模型,通过分析缝-洞之间相互关系及油水在缝洞系统中的分布对流动规律的影响,研究流体在裂缝、溶洞介质中的流动特征,揭示储集体内流体的流动规律。根据地质研究成果,构造典型生产井的水动力学等效模型,利用本模拟方法对网络状油藏开采机理进行了分析,验证了本模拟方法的有效性和合理性。
Tubing flow theory is commonly used to study the fluid flow in continuous medium. However, it is not applicable to the fracture-pore carbonate reservoir in Tahe oilfield, which is characterized by network reservoir, with cavity as the main accumulating space and facture as the connection channel. Both geology research and production practice indicate that the flow medium is fracture-pore unit which is non-continuous and the seepage model could not describe its flow performance and interpret its special production dynamics. A new hydrodynamic model, which is based on the tubing flow theory, is put forth in this paper. The flowing in fracture and pore is studied through the analysis to the space location and oil/water distribution in cavity. The equivalent hydrodynamic model of typical well is built from the geologic results and the flow mechanism in network reservoir is studied through this new model. Simulation results indicate this model is reasonable and effective .
出处
《西南石油学院学报》
CAS
CSCD
北大核心
2006年第5期53-56,共4页
Journal of Southwest Petroleum Institute
关键词
网络状油藏
水动力学
等效模拟
机理研究
network reservoir
hydrodynamics
equivalent simulation
mechanism study
