Abstract: The present invention concerns a method (100) for measuring the trapped gas saturation in a rock sample, comprising the steps: saturating (101) the porous volume of the rock sample with water; effecting a first imaging phase (102) capable of dividing the sample into a plurality of subsamples and measuring the porosity of each subsample; subjecting the sample of water saturated rock to centrifugation in air (103); effecting a second imaging phase (104) so as to obtain an initial gas saturation map Sgi of the sample; subjecting the rock sample to centrifugation under water (105); effecting a third imaging phase (106) so as to obtain a gas saturation map Sg of the sample; calculating (107) a plurality of Bond number values; associating (108), for each subsample, the gas saturation Sg with the initial gas saturation Sgi and with the Bond number values calculated; identifying (109) the Bond number value beyond which the gas saturation Sg begins to decrease, the value identified representing the critical Bond numbe

Abstract: The present invention relates to a measuring device (10) of the electric properties of solid or liquid geological samples, such as, for example, rocks, preferably from oil or gas reservoirs, and saturation fluids of the same, comprising a hollow body (11, 12) consisting of a first upper half-shell (11) and a second lower half-shell (12), the upper and lower half-shells (11, 12) coaxially sliding one inside the other, inside the body (11, 12) there being a housing seat (23) for a substantially cylindrical sample, two pairs of electrodes (13, 14) being envisaged facing the housing seat (23) for the injection of current into a sample and for the measurement of the voltage at the ends of the sample, characterized in that the pairs of electrodes (13, 14) are pairs of coplanar electrodes, each situated at one end of the housing seat (23).

Abstract: The present invention relates to a measuring device (10) of the electric properties of solid or liquid geological samples, such as, for example, rocks, preferably from oil or gas reservoirs, and saturation fluids of the same, comprising a hollow body (11, 12) consisting of a first upper half-shell (11) and a second lower half-shell (12), the upper and lower half-shells (11, 12) coaxially sliding one inside the other, inside the body (11, 12) there being a housing seat (23) for a substantially cylindrical sample, two pairs of electrodes (13, 14) being envisaged facing the housing seat (23) for the injection of current into a sample and for the measurement of the voltage at the ends of the sample, characterized in that the pairs of electrodes (13, 14) are pairs of coplanar electrodes, each situated at one end of the housing seat (23).