摘要在海上稠油热采过程中，多元热流体作为注入介质，提高加热稠油油藏效率是其关键技术，通过有效的对稠油油藏进行加热，达到促进稠油流动的目的。在稠油加热过程中，海水会对其产生影响，导致井筒出现非常大的热损耗，在加剧能量消耗的同时，也会对稠油的质量与产量产生不利影响，因此海上稠油热采一直对如何降低海水的影响极为关注。本设计结合以前陆地井筒传热模型并考虑海上井的特殊井身结构以及影响较为严重的海上环境，专门为建立的海上热采模型配置了热水结构。本文首先验证评估了海上热采井注的热流体传热模型，确定所建模型的准确性和可用性。其次是在不同条件下改变注入参数得出影响井筒传热的因素。关键词：AbstractIn the process of thermal recovery of offshore heavy oil, one of the most important technologies is how to efficiently heat the heavy oil reservoir, so as to effectively reduce the viscosity of heavy oil and improve the liquidity of heavy oil, so that the heavy oil flows into the production Wells. Due to the influence of sea water, the heat loss of the well above the formation is very large, and the heat loss of the thermal fluid in the offshore wellbore to the environment directly affects the production of heavy oil. Therefore, it is very important to analyze the heat loss in the wellbore of the offshore thermal fluid injection well.In this design, combined with the previous simple heat transfer model of land Wells and considering the special well body structure and external environment of offshore Wells, the heat transfer model of well bore with nominal hot water injection in offshore thermal production Wells is established. Firstly, the accuracy and availability of the model are confirmed by verifying and evaluating the wellbore heat transfer model of multielement thermal fluid with hot water injection in offshore thermal production Wells. Secondly, the factors affecting the heat transfer of t...
