**6.4 Summary of reservoir models**

There are other reservoir models described in the literature, e.g. Ennis-King and Paterson (2005) conclude that anisotropy of the reservoir has a strong effect on dissolution trapping, but this is beyond the scope of this book chapter and the reader is encouraged to check current research; this is an active area of research.

The simulation results are very important for CCS assessments and project planning, but it must be emphasized that more experimental research should be conducted, in the laboratory and especially at field scale to evaluate the quality of the model predictions. In addition, it is important to stress the approximative character of these models, real field situations are much more complex, e.g. it is not clear whether Fick's law can describe diffusion in the field or whether very heterogeneous pore structures (for instance in carbonate reservoirs) enhance convection or slow it down.
