Abstract: Flow-reaction in double media is widespread in the design of oil field development. It is urgent to solve the calculation problem of acid treatment design in fractured carbonate reservoir. The reaction of acid flowing in fractured carbonate formation is the acidrock reaction under unsteady state filtration in double media. This paper first develops a permeation model of acid flowing in double media, then based on the theory for surface reaction kinetics, the convection-conduction partial difference equation far reaction of acid flowing under steady state is established, which takes both common ion effect and temperature iota consideration. A temperature field model is also built up, and their solutions are given simultaneously by using the steady state-successive replacement method. Therefore, velocity field, temperature distribution and acid concentration distribution are obtained. The method can also be used for calculating the front position of alkaline displacement and the concentration distribution of alkaline water. The flow-reaction in fractured reservoir, a widespead problem, can be resolved by means of the theory and the way provided by this paper. The method has been used for designing the acid treatment加a fractured reservoir in our country.

摘要： 油气田开发设计中,双重介质地层的流动反应是一个普遍性问题.其中,裂缝性碳酸盐岩油气层的酸化设计计算是生产中急待解决的问题.酸液在裂缝性碳酸岩地层中的渗流反应是在双重介质中非稳态渗流条件下的酸岩反应问题. 本文首先建立酸液在双重介质中流动时的渗流模型,然后应用表面化学反应动力学理论,考虑同离子效应,地层温度和酸岩反应生成热的影响,建立单一裂缝中稳态流动反应时的对流扩散偏微分方程和单一裂缝中酸液稳态流动反应时温度分布模型.然后联立上述三个模型.用稳态逐次替换法求解,给出酸液在裂缝网中的流场,温度场和酸液浓度分布规律.