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利用火驱一维燃烧管模拟装置进行火驱干式向前燃烧工艺模拟实验,研究注气流量对火驱采油岩心燃烧特征的影响,考察不同空气流量下燃烧管温度分布、燃烧距离、燃烧持续时间、产出液体等参数研究空气流量对火烧油层的影响。结果表明,空气流量与燃烧前缘推进速度、原油消耗量成正相关关系;适当增大空气流量可提高产出油的饱和烃含量;当空气流量达到3.0L·min-1时,产出油的饱和烃含量开始减少;空气流量低于1.5L·min-1时,油层不能稳定燃烧。
The simulation experiment of the dry-type forward combustion process of the fire flooding was carried out by simulating the fire-driven one-dimensional combustion tube. The influence of injection flow rate on the combustion characteristics of the core of the fire flooding recovery was studied. The temperature distribution, combustion distance and combustion duration Time, the output of liquid parameters such as the impact of air flow on the burning of the oil layer. The results show that the air flow is positively correlated with the propulsion speed of the combustion front and the crude oil consumption. Appropriately increasing the air flow can increase the saturated hydrocarbon content of the produced oil. When the air flow reaches 3.0L · min-1, Saturated hydrocarbon content began to decrease; when the air flow rate is less than 1.5L · min-1, the oil layer can not be stably combusted.