초록 ▼

Volumes of different constitutive phases of a multiphase mixture contained in a vessel are measured after vertical stratification, mainly by comparing by two differential pressure detectors, the pressure generated by three fluid columns, one being totally filled with at least one of the fluids (a li

Volumes of different constitutive phases of a multiphase mixture contained in a vessel are measured after vertical stratification, mainly by comparing by two differential pressure detectors, the pressure generated by three fluid columns, one being totally filled with at least one of the fluids (a liquid phase for example topped by a gas phase), a second one with at least two of the fluids (one liquid phase for example topped by the same gas phase). The vessel can be, for example, an elongated column with a calibrated section arranged vertically and provided with pressure taps at three distinct points of the height thereof which taps communicate with detectors by appropriate fine lines. A processing set combines the pressure measurements in order to obtain the respective volumes of the phases. This method can be used for volume measurements in various vessels; notably in chemical engineering facilities and to conduct tests on porous geographic samples saturated with a multiphase mixture.

대표청구항 ▼

A method for testing continuously physical characteristics of a sample of porous material saturated with a known volume of a mixture of different fluids having different densities by means of measurements performed on fluids drained progressively out of the sample and collected in an elongated phase

A method for testing continuously physical characteristics of a sample of porous material saturated with a known volume of a mixture of different fluids having different densities by means of measurements performed on fluids drained progressively out of the sample and collected in an elongated phase separator comprising a column with a calibrated inner section arranged to obtain a vertical layering of the different phases, which method comprises, after vertical stratification of the collected fluids: measuring a first pressure difference and a second pressure difference between a pressure prevailing at an intermediate height of the column and respectively a pressure prevailing near a closed base of the column and a pressure prevailing near the top of the column; combining the first pressure difference and the second pressure difference to determine respective volumes of the collected fluids expelled from the sample; and determining from respective volumes of the different fluid and the known volume at least respective saturations of the sample by comparing the respective volumes with a known pore volume of the sample.