Overview

       The method of pressure drop is used to measure core permeability,which is a method of measuring permeability by unsteady state method.The unsteady state method means that the gas does not form stable seepage in the process of testing,and the flow is in the state of unsteady state.The pressure is a gradual process in the test, and the gradual process is tested and recorded,and then the permeability of the core is calculated by the method of calculus.The device is designed with porosity test module to test core porosity.

Main technical parameters

1,permeability testing range:0.001mD to 8000mD;

2,confining pressure:0.07 to 70MPa,controlled;

3,sample specification:Φ25mm,length:30 to 80mm;

4,useful fluid:nitrogen,helium,air;

5,standard chamber volume:100ml;

6,testing method:unsteady state pressure descent method;

7,automatically collect and process data,generate data curves and reports.