A nuclear imaging technique for studying multiphase flow in a porous medium at oil reservoir conditions

Abstract A long core flow-rig operating at reservoir pressure and temperature has been constructed for basic studies of multiphase flow in porous media. The dynamics of the fluid saturation distributions are recorded by labelling the fluid phases by nuclear tracers and detecting the gamma radiation by a movable germanium detector. Computerized automation include data acquisition and process control. Testing of the instrumentation and preliminary flow experiments indicate that the apparatus fulfills the objective of imaging the displacement processes at reservoir conditions.