Characterizing multi-layered reservoirs using a new, simple, inexpensive and environmentally sensitive pre-production well test

摘要

STHis paper presents a simple, inexpensive, and environmentally sensitive method to characterize and model multi-layer reservoirs with unequal initial pressures in individual alyers. The testing techniques involve monitoring pressure data caused by crossflow between the layers prior to flow at the surface (-re-production well testing). When boundary effects are reached in the test, it is possible to estimate individual layr permeability, skin and drainage area. Also, as there is no production on the surface, the new well test is well suited for offshore wells or for testing wells in environmentally sensitive areas.