摘要
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 。
In this paper, both relative permeability model and capillary pressure hysteresis model were established, and the existing black oil model was also improved, which can reflect more accurately the effect of real reservoir capillary force and relative permeability on numerical simulation. Single well Huff-Puff process includes gas injection, shut-in and producing periods. Based on the improved black oil model, we studied the oil and gas distribution characteristics of each period in the process. The results obtained have important practical meaning for guiding single well Huff-Puff of real horizontal formation.
出处
《西南石油学院学报》
CSCD
2000年第4期52-55,共4页
Journal of Southwest Petroleum Institute
基金
"油气藏地质及开发工程"国家重点实验室基金项目! (95 0 7970 70 12 )
关键词
油气田
黑油模型
单井
油气饱和度
注气吞吐过程
relative permeability, capillary pressure, black oil model, hysteresis, numerical simulation, single well
