METHOD AND DEVICE FOR MEASURING THE LEVELS OF SATURATION OF MULTIPLE PHASES IN A POROUS MEDIUM.

摘要

The invention relates to a method and a device for measuring the saturation levels of multiple phases in a porous medium. BR/ The device comprises two sources (21,27) of gamma ray of different energies. BR/ The weakest energy source (21) is fixed in position on a carriage and arranged along the collimation axis (19) of the system, while the second source (27) is movably mounted on this carriage , means being provided for bringing this second source along the collimation axis (19) of said system, near the first, or away from this axis.