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Simulations of Nanoscale Gas Flow with Knudsen Diffusion and Slip Flowстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
- Авторы: Nesterova I.S., Gerke K.M.
- Журнал: Mathematical Models and Computer Simulations
- Том: 13
- Номер: 6
- Год издания: 2021
- Первая страница: 971
- Последняя страница: 978
- Оригинальные версии: Расчёт течения газа в нанокапилляре с учётом кнудсеновской диффузии и проскальзывания
- DOI: 10.1134/s2070048221060156
- Аннотация: Conventional oil and gas reservoirs used for hydrocarbon production are partially depleted,and the global energy market is eyeing new unconventional energy sources. According to some estimates, shale gas resources in the world amount to 200 trillion m3, but only a small part is recoverable reserves in terms of modern technology. A detailed understanding of shale petrophysics is required to assess allowable production. In this study, we compare the popular empirical model of Javadpur and direct calculations of gas flow in a nanocapillary. Flow modes ranging from the Stokes flow to the free molecular flow are studied. Although, in general, the empirical model always gives higher predictions than the calculations, these differences are minimal for pores with a radius of 1 to 20 nm. In the range of pore radii of 20 to 1000 nm, the results of the two approaches can differ significantly. Taking intoaccount the data obtained, we conclude that direct modeling of nanoflow can be used for pore-net-work models refinement. Instead of empirical model for round nanocapillaries, pore-networks modelsallow us to calculate flow for pores of any configuration. In the future, a more complex study will be carried with non-ideal gas model and geometry of real pores obtained experimentally from geological samples, which will make it possible to reliably parameterize pore-network nanoflow models.
- Добавил в систему: Герке Кирилл Миронович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | заключение | DOC218.pdf | 81,4 КБ | 21 марта 2022 [kmgerke] | |
| 2. | Полный текст | document.pdf | 777,2 КБ | 2 января 2022 [kmgerke] |