Molecular simulation on the effect of formation depth on methane adsorption by clay minerals
Shale gas is an unconventional natural gas with large reserves. Recently, its production has increased rapidly, significantly impacting the international gas market and global energy landscape. In addition to organic matter and quartz, clay minerals constitute the majority of shale, and their produc...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2023-01-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0132591 |
| _version_ | 1811172583047954432 |
|---|---|
| author | Yijie Deng Dongbo Wang Yixiao Han |
| author_facet | Yijie Deng Dongbo Wang Yixiao Han |
| author_sort | Yijie Deng |
| collection | DOAJ |
| description | Shale gas is an unconventional natural gas with large reserves. Recently, its production has increased rapidly, significantly impacting the international gas market and global energy landscape. In addition to organic matter and quartz, clay minerals constitute the majority of shale, and their production activities are effectively guided by evaluating their shale gas adsorption capabilities. To explore shale gas reserves and model their distribution, the variation in shale gas content with formation depth should be investigated. Currently, experimental methods are used to evaluate the effect of formation depth on shale gas adsorption, the data are substituted into a theoretical model, and the resulting mathematical model is used to estimate the variation in methane adsorption with formation depth, considering only temperature and pressure. However, the experimental method is flawed, and the true adsorption content cannot be obtained. The absolute methane adsorption amount was calculated using molecular dynamics and the grand-canonical Monte Carlo method for the corresponding temperature and pressure conditions. The supercritical Dubinin–Radushkevich (SDR) equation was fitted, yielding a temperature-dependent equation for the SDR parameter. Shale gas adsorption can be predicted using the developed mathematical model based on formation depth and temperature–pressure gradient. |
| first_indexed | 2024-04-10T17:33:45Z |
| format | Article |
| id | doaj.art-a74195488e2b4d5a91ded66511b4aaca |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-10T17:33:45Z |
| publishDate | 2023-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-a74195488e2b4d5a91ded66511b4aaca2023-02-03T16:42:07ZengAIP Publishing LLCAIP Advances2158-32262023-01-01131015302015302-910.1063/5.0132591Molecular simulation on the effect of formation depth on methane adsorption by clay mineralsYijie Deng0Dongbo Wang1Yixiao Han2Institute of Atomic and Molecular Physics, Sichuan University, 24, Section 1 South of the First Ring Road, Wuhou District, Chengdu, ChinaInstitute of Atomic and Molecular Physics, Sichuan University, 24, Section 1 South of the First Ring Road, Wuhou District, Chengdu, ChinaCollege of Science, Northeastern University, 360 Huntington Ave., Boston, Massachusetts 02115, USAShale gas is an unconventional natural gas with large reserves. Recently, its production has increased rapidly, significantly impacting the international gas market and global energy landscape. In addition to organic matter and quartz, clay minerals constitute the majority of shale, and their production activities are effectively guided by evaluating their shale gas adsorption capabilities. To explore shale gas reserves and model their distribution, the variation in shale gas content with formation depth should be investigated. Currently, experimental methods are used to evaluate the effect of formation depth on shale gas adsorption, the data are substituted into a theoretical model, and the resulting mathematical model is used to estimate the variation in methane adsorption with formation depth, considering only temperature and pressure. However, the experimental method is flawed, and the true adsorption content cannot be obtained. The absolute methane adsorption amount was calculated using molecular dynamics and the grand-canonical Monte Carlo method for the corresponding temperature and pressure conditions. The supercritical Dubinin–Radushkevich (SDR) equation was fitted, yielding a temperature-dependent equation for the SDR parameter. Shale gas adsorption can be predicted using the developed mathematical model based on formation depth and temperature–pressure gradient.http://dx.doi.org/10.1063/5.0132591 |
| spellingShingle | Yijie Deng Dongbo Wang Yixiao Han Molecular simulation on the effect of formation depth on methane adsorption by clay minerals AIP Advances |
| title | Molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| title_full | Molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| title_fullStr | Molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| title_full_unstemmed | Molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| title_short | Molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| title_sort | molecular simulation on the effect of formation depth on methane adsorption by clay minerals |
| url | http://dx.doi.org/10.1063/5.0132591 |
| work_keys_str_mv | AT yijiedeng molecularsimulationontheeffectofformationdepthonmethaneadsorptionbyclayminerals AT dongbowang molecularsimulationontheeffectofformationdepthonmethaneadsorptionbyclayminerals AT yixiaohan molecularsimulationontheeffectofformationdepthonmethaneadsorptionbyclayminerals |