METHOD FOR LABORATORY DETERMINATION OF MINERALIZATION OF FORMATION AND PORE WATER OF LOW PERMEABILITY ROCKS Russian patent published in 2023 - IPC G01N33/18 

FIELD: petrophysics.

SUBSTANCE: petrophysical analysis of the fluid content of low-permeability rocks, including complex shale oil and gas source rocks - hydrocarbon reservoirs. A method for laboratory determination of the mineralization of formation and pore water of low-permeability rocks is characterized by the fact that it includes the following stages: selection of a rock sample; measurement of free water content in a rock sample; measurement of the isotopic composition of free water; abrasion of the rock sample; selecting a sample of the required mass and transferring it to a measuring tube; adding a liquid solvent to a measuring tube; mixing the suspension from the sample and the solvent liquid, settling and passing through a filter; determination of the content of water-soluble salts and assessment of the mineralization of pore water, taking into account the content of free water in the sample.

EFFECT: increasing the speed, reliability and accuracy of determining the mineralization of pore water of shale source rock samples, including those with an initially low total water content.

12 cl, 11 dwg