Typical flow regimes occurring in a finite fractured reservoir, occupied by a single-phase liquid, are quantified, using approximate analytical expressions. Estimates are provided for the time at the beginning and end of each regime and of the expected pressure drawdown within each regime. The central result is the derivation of an approximate r4/t self-similarity for the bilinear flow regime, and new analytical expressions are obtained for the early and late development of this bilinear regime. The evolution of flow regimes is problem dependent, and examples of slope halving and slope doubling are provided for the transition between the first and second regimes. Examples discussed and quantified include radial and linear flows, fracture flows, bilinear flows, parallel flows, block drawdown, and finite fracture regimes. ¿ 1999 American Geophysical Union