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方法根据室内物理模拟结果.建立化学剂吞吐稠油的渗流数学模拟和理论.研制了适合化学剂吞吐稠油油藏的三维两相五组分模型模拟器。目的提高稠油油田冷采加化学剂吞吐开采效果。结果化学剂吞吐浓度为3000mg/L,注入段塞尺寸等于0.02PV或0.03PV时,驱油效果较好。单井吞吐可采用0.03PV、吞吐99d的方案;五点井网采用吞吐井注入0.02PV、吞吐69d的方案。玉东1井组采用网格布井开发.即布井1~25口(五点或反九点)、吞吐井4~15口。结论稠油油田冷采加化学剂吞吐开采所建立的渗流数学模型理论和方法.反映了化学剂吞吐稠油渗流的过程及物理化学作用关系.是一个实用的组分模型.并具有广泛的应用价值;同时也说明了玉东1井采用化学剂吞吐驱油是可行的。
Method According to the indoor physical simulation results. Establish mathematical simulation and theory of percolation of heavy oil in chemical industry. A three-dimensional two-phase and five-component model simulator suitable for chemical throughput and heavy oil reservoirs has been developed. Aim To improve the effect of cold storage and chemical huff and puff in heavy oilfield. Results When the throughput of chemical agent was 3000mg / L and the size of injection slug was equal to 0.02PV or 0.03PV, the flooding effect was better. Single-well throughput can be used 0.03PV, 99d throughput program; five well pattern using the injection wells into the 0.02PV, 69d throughput program. Jade 1 well group using grid cloth well development. That is, cloth well 1 ~ 25 (five or anti-nine points), throughput wells 4 to 15 mouth. Conclusions The theory and method of seepage mathematical model established by cold mining and chemical huff and puff in heavy oilfields. Reflects the process of chemical seepage through heavy oil seepage and the relationship between physical and chemical effects. Is a practical component model. And it has a wide range of application value. It also shows that using Yudong 1 well to purify oil with chemical agent is feasible.