In this paper, the effect of different viscosity and specific heat capacity on the gelation behavior of waxy crude oil was studied. The additional specific heat capacity method and the momentum source term method are used for numerical simulation. Grey correlation analysis method was used to quantitatively express the correlation degree of viscosity and specific heat capacity on average flow velocity, temperature drop rate and the ratio of gelled oil area to total area. The results show that the influence of viscosity on the gelation behavior of waxy crude oil is greater than that of specific heat capacity. When the viscosity of crude oil is large, natural convection is weaker and the temperature drop rate is smaller, which retards the development of the gelation behavior of crude oil. For crude oil with larger heat capacity, the temperature drop rate is smaller and the natural convection is slightly stronger, but the temperature drop rate has a great influence on the gelation behavior of crude oil, making it develop slowly. The influence of both viscosity and specific heat capacity on gelation behavior is limited.

本文研究了不同粘度和比热容对蜡质原油胶凝行为的影响。数值模拟采用附加的比热容法和动量源项法。用灰色关联分析法定量地表示了粘度和比热与平均流速，温度下降率以及胶化油面积与总面积之比的相关程度。结果表明，粘度对蜡质原油胶凝行为的影响大于比热容。当原油粘度较大时，自然对流较弱，降温速率较小，从而阻碍了原油胶凝行为的发展。对于热容量更大的原油，温度下降率较小，自然对流性稍强，但温度下降率对原油的胶凝行为影响很大，使其发展缓慢。粘度和比热容对胶凝行为的影响是有限的。