NEW DEVELOPMENTS IN MULTIPLE-WELL TESTING.

Multiple-well tests provide information about reservoir characteristics such as permeability, porosity, communication between wells, and reservoir heterogeneity. A previous paper discussed the state of the art of multiple-well testing. Several developments were reported over the last few years; most are for fractured wells, double-porosity systems, and vertical permeability testing. Several field applications of multiple-well testing were also published during the last few years. This paper discusses the new developments, summarizes the information that can be obtained from multiple-well tests with current technology, and indicates areas for future developments.