In the process of heavy oil recovery by means of steam soak, since formation temperature fluctuates,the mechanism of fluid flow through porous medium is very complicate. Boberg and Lantz isothermal model were used in conventional steam soak deliverability calculation. Aiming at the existing problems of conventional model,to build non-isothermal filtration model was proposed. Heating radius calculation formula and deliverability forecast formula for early production stage are derived, providing reference for application of steam soak technology.%稠油吞吐开采过程中,由于地层存在温度变化,渗流机理非常复杂.传统的蒸汽吞吐产能计算方法多采用Boberg和Lantz等温模型.针对传统模型存在的问题,提出了建立非等温渗流模型,推导了加热半径计算公式和初期产能预测公式,为蒸汽吞吐技术的应用提供参考.
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