Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation
Studies of rock stress sensitivity are mainly focused on experimental and data processing methods, and the mechanism cannot be adequately explained using specific pore shape models. This study, based on a random pore network simulation, explains the rock stress sensitivity mechanism for the first ti...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2016/5343786 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550622698668032 |
|---|---|
| author | Qi Chen Quanwen Liu Zhengwu Tao |
| author_facet | Qi Chen Quanwen Liu Zhengwu Tao |
| author_sort | Qi Chen |
| collection | DOAJ |
| description | Studies of rock stress sensitivity are mainly focused on experimental and data processing methods, and the mechanism cannot be adequately explained using specific pore shape models. This study, based on a random pore network simulation, explains the rock stress sensitivity mechanism for the first time. Based on the network model theory, the hydraulic conductivity equation, the dimensionless radius equation, and the effective stress equation for partially saturated rock are used to generate a three-dimensional random pore network model based on the QT platform. The simulation results show that the influence of the effective stress on the dimensionless radius becomes more significant as the aspect ratio decreases, and the relationship between dimensionless radius and effective stress can be effectively interpreted through different combinations of pore shapes. Moreover, the mechanism behind permeability stress sensitivity can be explained by establishing the relationship between permeability and effective stress. |
| format | Article |
| id | doaj-art-5e3b25863aa443a4b5f48384856cf085 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-5e3b25863aa443a4b5f48384856cf0852025-02-03T06:06:15ZengWileyJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/53437865343786Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network SimulationQi Chen0Quanwen Liu1Zhengwu Tao2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, ChinaGuangdong University of Petrochemical Technology, Guangdong, Maoming 525000, ChinaPetroChina Tarim Oilfield Company, Korla, Xinjiang 841000, ChinaStudies of rock stress sensitivity are mainly focused on experimental and data processing methods, and the mechanism cannot be adequately explained using specific pore shape models. This study, based on a random pore network simulation, explains the rock stress sensitivity mechanism for the first time. Based on the network model theory, the hydraulic conductivity equation, the dimensionless radius equation, and the effective stress equation for partially saturated rock are used to generate a three-dimensional random pore network model based on the QT platform. The simulation results show that the influence of the effective stress on the dimensionless radius becomes more significant as the aspect ratio decreases, and the relationship between dimensionless radius and effective stress can be effectively interpreted through different combinations of pore shapes. Moreover, the mechanism behind permeability stress sensitivity can be explained by establishing the relationship between permeability and effective stress.http://dx.doi.org/10.1155/2016/5343786 |
| spellingShingle | Qi Chen Quanwen Liu Zhengwu Tao Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation Journal of Chemistry |
| title | Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation |
| title_full | Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation |
| title_fullStr | Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation |
| title_full_unstemmed | Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation |
| title_short | Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation |
| title_sort | study on the mechanism of rock stress sensitivity using a random pore network simulation |
| url | http://dx.doi.org/10.1155/2016/5343786 |
| work_keys_str_mv | AT qichen studyonthemechanismofrockstresssensitivityusingarandomporenetworksimulation AT quanwenliu studyonthemechanismofrockstresssensitivityusingarandomporenetworksimulation AT zhengwutao studyonthemechanismofrockstresssensitivityusingarandomporenetworksimulation |