Constructing or refining complex reservoir models at the appraisal, development, or production stage is a challenging, time-consuming task, with a high degree of uncertainty. The lack of an intuitive set of modeling, simulation and visualization tools that support expert interpretation from geophysicists, geologists and reservoir engineers significantly increases the challenge. A particular limitation is the lack of software that allows conceptual models to be rapidly created, using a simple, intuitive interface, and then interrogated for key reservoir properties and behaviours. This research project will develop rapid reservoir modeling (RRM) software for prototyping complex reservoir models, by means of novel, interactive, modeling techniques, exploratory visualization, and numerical analysis. The work is planned over three phases, each of which will deliver a complete RRM workflow, but with increasing breadth in input/output data, techniques for rapid model construction, and sophistication of the numerical analyses available.