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建立了相对渗透率和毛管压力滞后模型 ,对已有的黑油模型进行了改进 ,使得相渗和毛管压力在实际的油藏模拟中更加精确地体现出来 ,并使改进后的模型能有效地反映注气吞吐过程的真实动态。基于改进的黑油模型 ,对单井注气吞吐全过程的三个阶段 :注气阶段、关井平衡阶段、开井采油阶段 ,油气的饱和度分布规律进行了模拟计算和结果分析 ,研究结果对实际的水平地层单井吞吐均具有一定的指导意义和作用
The relative permeability and capillary pressure hysteresis model were established, and the existing black oil model was improved so that the permeability and capillary pressure were more accurately reflected in the actual reservoir simulation, and the improved model could effectively Reflect the real dynamic process of injection Huff and puffs. Based on the improved black oil model, the three stages of the whole process of gas injection and single-well gas injection are investigated: the gas injection stage, the well-off balance stage, the open-hole recovery stage and the oil and gas saturation distribution are simulated and the results are analyzed. It has a certain guiding significance and effect to the actual horizontal well single well huff and puff