f Synergetic interpretation of well test and seismic data for reservoir characterization

A pressure buildup well test is a measurement of bottomhole pressures in a wellbore beginning while the well is flowing and continuing for a period of several hours or days after the well is shut in . After the well is shut in, no force maintains the low pressure at the well and the tendency toward equilibrium results in a buildup of pressure in the wellbore. The pressure perturbation initiated by shutting in the well, expands about the well, and trends in the measured wellbore pressures may be altered whenever the pressure wave encounters a change in rock or fluid properties .