Study on the effects of fracture on permeability with pore-fracture network model
Reservoir quality and productivity of fractured gas reservoirs depend heavily on the degree of fracture development. The fracture evaluation of such reservoir media is the key to quantify reservoir characterization for the purposes such as well drilling and completion as well as development and simu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2018-11-01
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| Series: | Energy Exploration & Exploitation |
| Online Access: | https://doi.org/10.1177/0144598718777115 |
| _version_ | 1819213099682496512 |
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| author | Chunyan Jiao Yong Hu Xuan Xu Xiaobing Lu Weijun Shen Xinhai Hu |
| author_facet | Chunyan Jiao Yong Hu Xuan Xu Xiaobing Lu Weijun Shen Xinhai Hu |
| author_sort | Chunyan Jiao |
| collection | DOAJ |
| description | Reservoir quality and productivity of fractured gas reservoirs depend heavily on the degree of fracture development. The fracture evaluation of such reservoir media is the key to quantify reservoir characterization for the purposes such as well drilling and completion as well as development and simulation of fractured gas reservoirs. In this study, a pore-fracture network model was constructed to understand the effects of fracture on permeability in the reservoir media. The microstructure parameters of fractures including fracture length, fracture density, fracture number, and fracture radius were analyzed. Then two modes and effects of matrix and fracture network control were discussed. The results indicate that the network permeability in the fractured reservoir media will increase linearly with fracture length, fracture density, fracture number, and fracture radius. When the fracture radius exceeds 80 µm, the fracture radius has a little effect on network permeability. Within the fracture density less than 0.55, it belongs to the matrix control mode, while the fracture network control mode is dominant in the fracture density exceeding 0.55. The network permeability in the matrix and fracture network control modes is affected by fracture density and the ratio of fracture radius to pore radius. There is a great change in the critical density for the matrix network control compared with the fracture network control. This work can provide a better understanding of the relationship between matrix and fractures, and the effects of fracture on permeability so as to evaluate the fluid flow in the fractured reservoir media. |
| first_indexed | 2024-12-23T06:53:29Z |
| format | Article |
| id | doaj.art-2e933262bb7b42f49edb1e4ea8d60fcc |
| institution | Directory Open Access Journal |
| issn | 0144-5987 2048-4054 |
| language | English |
| last_indexed | 2024-12-23T06:53:29Z |
| publishDate | 2018-11-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Energy Exploration & Exploitation |
| spelling | doaj.art-2e933262bb7b42f49edb1e4ea8d60fcc2022-12-21T17:56:22ZengSAGE PublishingEnergy Exploration & Exploitation0144-59872048-40542018-11-013610.1177/0144598718777115Study on the effects of fracture on permeability with pore-fracture network modelChunyan JiaoYong HuXuan XuXiaobing LuWeijun ShenXinhai HuReservoir quality and productivity of fractured gas reservoirs depend heavily on the degree of fracture development. The fracture evaluation of such reservoir media is the key to quantify reservoir characterization for the purposes such as well drilling and completion as well as development and simulation of fractured gas reservoirs. In this study, a pore-fracture network model was constructed to understand the effects of fracture on permeability in the reservoir media. The microstructure parameters of fractures including fracture length, fracture density, fracture number, and fracture radius were analyzed. Then two modes and effects of matrix and fracture network control were discussed. The results indicate that the network permeability in the fractured reservoir media will increase linearly with fracture length, fracture density, fracture number, and fracture radius. When the fracture radius exceeds 80 µm, the fracture radius has a little effect on network permeability. Within the fracture density less than 0.55, it belongs to the matrix control mode, while the fracture network control mode is dominant in the fracture density exceeding 0.55. The network permeability in the matrix and fracture network control modes is affected by fracture density and the ratio of fracture radius to pore radius. There is a great change in the critical density for the matrix network control compared with the fracture network control. This work can provide a better understanding of the relationship between matrix and fractures, and the effects of fracture on permeability so as to evaluate the fluid flow in the fractured reservoir media.https://doi.org/10.1177/0144598718777115 |
| spellingShingle | Chunyan Jiao Yong Hu Xuan Xu Xiaobing Lu Weijun Shen Xinhai Hu Study on the effects of fracture on permeability with pore-fracture network model Energy Exploration & Exploitation |
| title | Study on the effects of fracture on permeability with pore-fracture network model |
| title_full | Study on the effects of fracture on permeability with pore-fracture network model |
| title_fullStr | Study on the effects of fracture on permeability with pore-fracture network model |
| title_full_unstemmed | Study on the effects of fracture on permeability with pore-fracture network model |
| title_short | Study on the effects of fracture on permeability with pore-fracture network model |
| title_sort | study on the effects of fracture on permeability with pore fracture network model |
| url | https://doi.org/10.1177/0144598718777115 |
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