Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy
This article deals with the topical problem of estimating water content in water–oil mixtures within porous media they saturate, according to low-field NMR relaxometry and dielectric spectroscopy. The aim of the research is experimental validation of the capability of complex data interpretation to...
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MDPI AG
2022-04-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/12/4/179 |
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| author | Mariya Shumskayte Andrey Mezin Elena Chernova Aleksandra Burukhina Nikita Golikov Svetlana Melkozerova |
| author_facet | Mariya Shumskayte Andrey Mezin Elena Chernova Aleksandra Burukhina Nikita Golikov Svetlana Melkozerova |
| author_sort | Mariya Shumskayte |
| collection | DOAJ |
| description | This article deals with the topical problem of estimating water content in water–oil mixtures within porous media they saturate, according to low-field NMR relaxometry and dielectric spectroscopy. The aim of the research is experimental validation of the capability of complex data interpretation to acquire information on the filtration-volumetric properties of drill cuttings, relaxation characteristics of oil-containing fluids, the water/oil ratio in water–oil mixtures, and their saturation of drill cuttings to control the composition of liquids produced from boreholes. The studies are carried out on samples of cuttings and oils taken from fields in the Northern regions of the West Siberian oil-and-gas province, where NMR studies have not been performed before. Based on the experimental data obtained, the possibility of water content assessment in water-in-oil mixtures and porous media they saturate were proved through NMR relaxometry. With the use of the proposed methodology, the amount of water in oil–water mixtures was established, and their main NMR characteristics were determined. The relative error in evaluating the proportion of water in mixtures based on high-viscosity oils is less than 10%, and about 20% for those based on light oils. When determining the oil–water ratio in the pore space of the drill cuttings, the error is about 15%. It was proven that joint use of these two techniques makes it possible to increase the reliability of the oil–water ratio assessment of all the samples studied. Furthermore, it was revealed that the NMR spectrum shifts to the right, and the spectrum of the complex permittivity shifts downwards during the transition from high-viscosity oils to light ones. |
| first_indexed | 2024-03-09T13:36:56Z |
| format | Article |
| id | doaj.art-4ebca71729f9489ab91857c265198b08 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-09T13:36:56Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-4ebca71729f9489ab91857c265198b082023-11-30T21:10:59ZengMDPI AGGeosciences2076-32632022-04-0112417910.3390/geosciences12040179Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric SpectroscopyMariya Shumskayte0Andrey Mezin1Elena Chernova2Aleksandra Burukhina3Nikita Golikov4Svetlana Melkozerova5Geophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaGeophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaGeophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaGeophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaGeophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaGeophysics Division, Siberian Branch Russian Academy of Sciences, Trofimuk Institute of Petroleum Geology and Geophysics, 630090 Novosibirsk, RussiaThis article deals with the topical problem of estimating water content in water–oil mixtures within porous media they saturate, according to low-field NMR relaxometry and dielectric spectroscopy. The aim of the research is experimental validation of the capability of complex data interpretation to acquire information on the filtration-volumetric properties of drill cuttings, relaxation characteristics of oil-containing fluids, the water/oil ratio in water–oil mixtures, and their saturation of drill cuttings to control the composition of liquids produced from boreholes. The studies are carried out on samples of cuttings and oils taken from fields in the Northern regions of the West Siberian oil-and-gas province, where NMR studies have not been performed before. Based on the experimental data obtained, the possibility of water content assessment in water-in-oil mixtures and porous media they saturate were proved through NMR relaxometry. With the use of the proposed methodology, the amount of water in oil–water mixtures was established, and their main NMR characteristics were determined. The relative error in evaluating the proportion of water in mixtures based on high-viscosity oils is less than 10%, and about 20% for those based on light oils. When determining the oil–water ratio in the pore space of the drill cuttings, the error is about 15%. It was proven that joint use of these two techniques makes it possible to increase the reliability of the oil–water ratio assessment of all the samples studied. Furthermore, it was revealed that the NMR spectrum shifts to the right, and the spectrum of the complex permittivity shifts downwards during the transition from high-viscosity oils to light ones.https://www.mdpi.com/2076-3263/12/4/179nuclear magnetic resonancedielectric spectroscopywater–oil mixturerelaxation characteristicdrill cuttingsWest Siberia |
| spellingShingle | Mariya Shumskayte Andrey Mezin Elena Chernova Aleksandra Burukhina Nikita Golikov Svetlana Melkozerova Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy Geosciences nuclear magnetic resonance dielectric spectroscopy water–oil mixture relaxation characteristic drill cuttings West Siberia |
| title | Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy |
| title_full | Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy |
| title_fullStr | Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy |
| title_full_unstemmed | Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy |
| title_short | Estimating Water Content in Water–Oil Mixtures and Porous MEDIA They Saturate: Joint Interpretation of NMR Relaxometry and Dielectric Spectroscopy |
| title_sort | estimating water content in water oil mixtures and porous media they saturate joint interpretation of nmr relaxometry and dielectric spectroscopy |
| topic | nuclear magnetic resonance dielectric spectroscopy water–oil mixture relaxation characteristic drill cuttings West Siberia |
| url | https://www.mdpi.com/2076-3263/12/4/179 |
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