Comparison of the approaches to assessing the compressibility of the pore space
Integral and differential approaches to determining the volumetric compression of rocks caused by changes in the stress state are considered. Changes in the volume of the pore space of rocks are analyzed with an increase in its all-round compression. Estimation of changes in the compressibility coef...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2022-12-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/15937?setLocale=en_US |
| _version_ | 1828058234759413760 |
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| author | Vitaly S. Zhukov Yuri O. Kuzmin |
| author_facet | Vitaly S. Zhukov Yuri O. Kuzmin |
| author_sort | Vitaly S. Zhukov |
| collection | DOAJ |
| description | Integral and differential approaches to determining the volumetric compression of rocks caused by changes in the stress state are considered. Changes in the volume of the pore space of rocks are analyzed with an increase in its all-round compression. Estimation of changes in the compressibility coefficients of reservoirs due to the development of fields is an urgent problem, since the spread in the values of compressibility factors reduces the adequacy of estimates of changes in the physical properties and subsidence of the earth's surface of developed fields and underground gas storages. This parameter is key in assessing the geodynamic consequences of the long-term development of hydrocarbon deposits and the operation of underground gas storage facilities. Approaches to the assessment differ in the use of cumulative (integral) or local (differential) changes in porosity with a change in effective pressure. It is shown that the coefficient of volumetric compressibility of pores calculated by the integral approach significantly exceeds its value calculated by the differential approach, which is due to the accumulative nature of pore compression with an increase in effective pressure. It is shown that the differential approach more accurately determines the value of the pore compressibility coefficient, since it takes into account in more detail the features of the change in effective pressure. |
| first_indexed | 2024-04-10T21:25:14Z |
| format | Article |
| id | doaj.art-9d6bac7417604705a57fe14768c95a86 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:25:14Z |
| publishDate | 2022-12-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-9d6bac7417604705a57fe14768c95a862023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-12-012581008101710.31897/PMI.2022.9715937Comparison of the approaches to assessing the compressibility of the pore spaceVitaly S. Zhukov0https://orcid.org/0000-0003-1159-5559Yuri O. Kuzmin1https://orcid.org/0000-0002-5535-6114Institute of Physics of the Earth RASInstitute of Physics of the Earth RASIntegral and differential approaches to determining the volumetric compression of rocks caused by changes in the stress state are considered. Changes in the volume of the pore space of rocks are analyzed with an increase in its all-round compression. Estimation of changes in the compressibility coefficients of reservoirs due to the development of fields is an urgent problem, since the spread in the values of compressibility factors reduces the adequacy of estimates of changes in the physical properties and subsidence of the earth's surface of developed fields and underground gas storages. This parameter is key in assessing the geodynamic consequences of the long-term development of hydrocarbon deposits and the operation of underground gas storage facilities. Approaches to the assessment differ in the use of cumulative (integral) or local (differential) changes in porosity with a change in effective pressure. It is shown that the coefficient of volumetric compressibility of pores calculated by the integral approach significantly exceeds its value calculated by the differential approach, which is due to the accumulative nature of pore compression with an increase in effective pressure. It is shown that the differential approach more accurately determines the value of the pore compressibility coefficient, since it takes into account in more detail the features of the change in effective pressure.https://pmi.spmi.ru/index.php/pmi/article/view/15937?setLocale=en_USrockporositycompressibility of rockscompressibility of poreseffective pressurepore pressuredevelopment of hydrocarbon deposits |
| spellingShingle | Vitaly S. Zhukov Yuri O. Kuzmin Comparison of the approaches to assessing the compressibility of the pore space Записки Горного института rock porosity compressibility of rocks compressibility of pores effective pressure pore pressure development of hydrocarbon deposits |
| title | Comparison of the approaches to assessing the compressibility of the pore space |
| title_full | Comparison of the approaches to assessing the compressibility of the pore space |
| title_fullStr | Comparison of the approaches to assessing the compressibility of the pore space |
| title_full_unstemmed | Comparison of the approaches to assessing the compressibility of the pore space |
| title_short | Comparison of the approaches to assessing the compressibility of the pore space |
| title_sort | comparison of the approaches to assessing the compressibility of the pore space |
| topic | rock porosity compressibility of rocks compressibility of pores effective pressure pore pressure development of hydrocarbon deposits |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/15937?setLocale=en_US |
| work_keys_str_mv | AT vitalyszhukov comparisonoftheapproachestoassessingthecompressibilityoftheporespace AT yuriokuzmin comparisonoftheapproachestoassessingthecompressibilityoftheporespace |