OIL SHALES OPEN POROSITY AND CURRENT OIL SATURATION DETERMINATION METHOD BY THE THERMAL ANALYSIS METHOD Russian patent published in 2018 - IPC G01N15/08 G01N25/14 G01N25/56 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the petroleum industry and represents the petrophysical basis for the hydrocarbons reserves calculation. It can be used both for oil and gas shales, dense carbonate and other rocks having the porosity and permeability low values, as well as the pore space saturating fluids multicomponent composition (unconventional collectors). Summary of invention is that in the oil shales open porosity and current oil saturation determination method, including the liquid saturation method with distilled water or another liquid, void space purification from free hydrocarbons by the thermal analysis method, according to the invention for the organic compounds content identification and quantification, water and other inorganic compounds nature determination, mineralogical analysis, the thermal analysis method with spectrometric methods combination is used: mass-, IR Fourier, chromato-mass-spectrometry; to quantify the rock geometric dimensions change during heating, the thermal analysis method with dilatometric methods (thermodilatometry) combination is used. This method allows to perform the open porosity and current oil saturation measurement in one sample.

EFFECT: decrease in the measurements error, increase in the method information content.

1 cl, 4 dwg