FIELD: mining industry.
SUBSTANCE: invention relates to the field of petrophysics and can be used to determine the complex of petrophysical properties of a rock sample. Essence: a dry rock sample is placed in a core holder, saturated with gas and a complex of its petrophysical properties is determined. The all-round pressure is increased to a value exceeding the pore pressure, and the pore pressure is increased to the value of the pore pressure in the reservoir under study. The complex of petrophysical properties of a dry sample is determined. At a constant value of the pore pressure corresponding to the magnitude of the pore pressure in the reservoir under study, the all-round pressure is gradually increased to a value corresponding to the magnitude of the all-round pressure in the reservoir under study. At each stage, the complex of petrophysical properties of a dry sample is determined. The pore and all-round pressure is reduced to atmospheric pressure and the sample is evacuated. The sample is saturated with a liquid corresponding to the composition of reservoir water, and the complex of its petrophysical properties is determined. The all-round pressure is increased to a value exceeding the pore pressure in the reservoir under study, and the pore pressure is increased to a value corresponding to the pore pressure in the reservoir under study. The complex of petrophysical properties of a sample saturated with liquid is determined. At a constant value of the pore pressure corresponding to the magnitude of the pore pressure in the reservoir under study, the all-round pressure is gradually increased to a value corresponding to the magnitude of the all-round pressure in the reservoir under study. At each stage, a complex of petrophysical properties of a sample saturated with liquid is determined.
EFFECT: increasing the reliability of determining the petrophysical properties of the sample when modeling reservoir conditions.
1 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| AUTOMATED INSTALLATION FOR RESEARCH OF FILTRATION RESERVOIR PROCESSES | 2021 |
|
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| METHOD FOR STUDYING THE CORE OF TERRIGENOUS ROCKS | 2022 |
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|
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| SIMULATION METHOD OF FORMATION-FLUID SYSTEM OF DEVELOPED DEPOSIT | 2011 |
|
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| METHOD FOR MEASURING RELATIVE PHASE PERMEABILITIES IN A POROUS MEDIUM | 2023 |
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| DEVICE FOR MEASURING RELATIVE PHASE PERMEABILITIES IN POROUS MEDIUM AT ITS THREE-PHASE SATURATION | 2023 |
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RU2822821C1 |
