FIELD: petrochemical industry, particularly to increase reservoir recovery, oil reserve calculation and effective oil field development control.
SUBSTANCE: method involves performing joint filtration of mineralized water and oil through core sample; measuring intermediate intensity of X-radiation passed via the sample; measuring X-radiation intensity change as sample has 100% water saturation; measuring X-radiation passed through dry sample and calculating water saturation from the following formula: 
where α is ratio between mass X-radiation absorption factors in oil and mineralized water; β is coefficient characterizing sample water saturation change as temperature changes.
EFFECT: increased reliability and measurement accuracy.
1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR QUANTITATIVE DETERMINATION OF ROCK SAMPLES WATER-SATURATION USING VALUES OF INITIAL AND FINAL WATER-SATURATION | 2012 |
|
RU2505802C1 |
| METHOD OF EVALUATION OF OIL SATURATION OF ROCK | 2007 |
|
RU2360233C1 |
| METHOD FOR DETERMINING THE OIL RECOVERY COEFFICIENT IN THE DEPLETION MODE IN LOW-PERMEABLE ROCK SAMPLES | 2020 |
|
RU2747948C1 |
| METHOD FOR CREATING RESIDUAL WATER SATURATION ON A WEAKLY CEMENTED CORE FOR CONDUCTING FLOW STUDIES | 2020 |
|
RU2748021C1 |
| METHOD FOR DETERMINING FILTRATION PROPERTIES OF CAVERNOUS-FRACTURED RESERVOIRS | 2023 |
|
RU2817122C1 |
| METHOD OF DETERMINING RELATIVE PHASE PERMEABILITIES | 2024 |
|
RU2818048C1 |
| METHOD FOR DETERMINING THE OIL DISPLACEMENT COEFFICIENT AT THE PORE SCALE BASED ON 4D MICROTOMOGRAPHY AND A DEVICE FOR ITS IMPLEMENTATION | 2021 |
|
RU2777702C1 |
| METHOD FOR DETERMINING OIL DISPLACEMENT COEFFICIENT | 2020 |
|
RU2753964C1 |
| DETERMINATION OF ROCK WATER SATURATION | 2013 |
|
RU2539811C1 |
| METHOD OF DETERMINING RELATIVE PHASE PERMEABILITIES WHEN SIMULATING PROCESS OF UNDERGROUND STORAGE OF OIL | 2023 |
|
RU2825598C1 |
