论文部分内容阅读
本文论述了在 10 1 和 2 10 0lb/in2 (G)的地层条件下所进行的一系列稳定状态CO2 气体流动实验。该实验使用三种不同的流速 (即总射入速度 ) :4 2、 8 4和 16 8cm3/h ,以及五种不同的泡沫质量 :2 0 %、 33 3%、 50 %、 6 6 7%和 80 % ,来研究流速及泡沫质量是如何影响气体流动性的。实验结果表明 ,气体的流动性 (即CO2 气体 /表面活性剂溶液的总流动性 )随着流速的增加而增加 ,气体的阻力因子随着流速的增加而降低。实验结果还表明 ,气体流动性随着泡沫质量的增加而降低 ,气体的阻力因子随着范围在 33 3%～ 80 %的泡沫质量的增加而增加 ,在质量在2 0 %～ 33 3%范围内的泡沫中应存在一个最小的气体阻力因子。
This paper describes a series of steady-state CO 2 gas flow experiments conducted under formation conditions of 10 1 and 2 10 0 lb / in 2 (G). The experiment used three different flow rates (ie, total incident velocities): 42, 84 and 168 cm3 / h, and five different foam qualities: 20%, 33 3%, 50%, 6 6 7% And 80%, to study how the flow rate and foam quality affect the gas flow. The experimental results show that the gas flowability (ie, the total fluidity of CO2 gas / surfactant solution) increases with the flow rate, and the gas drag coefficient decreases with the flow rate. The experimental results also show that the gas flowability decreases with the increase of the foam quality. The gas resistance factor increases with the increase of the foam quality in the range of 33 3% ~ 80%. When the mass is in the range of 20% ~ 33 3% There should be a minimum gas resistance factor in the foam inside.