ACCOUNTING THERMOBARIC CONDITIONS WHEN DETERMINING THE COUNTING PARAMETERS OF ZEOLITE-CONTAINING ROCKS OF PRODUCTIVE RESERVOIRS OF THE BOLSHEKHETSKAYA DEPRESSION FIELDS

Abstract

The authors of the article have studied structural features of the reservoirs by using microsections descriptions, XRF, SEM photos, particle size distribution, determination of the mass fraction of carbo-nates by thermo gravimetric method, refinement of mineral density by pycnometric method, study of reservoir properties in the temperature and pressure conditions at saturation as kerosene and water and etc. It has been found that due to its physical and chemical characteristics zeolites have significant impacts on the increase in the degree of hydration and the presence of zeolite water; low density and a large fractional free volume of the dehydrated samples; the existence of similar channels with diameters of molecular dimensions in dehydrated crystals. It is shown that for zeolite-containing rocks the most reliable result can be obtained by using in the calculation of the reduced density of the skeleton and transition to thermobaric conditions in the evaluation of reservoir properties and resistivity.