Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method
AbstractThe optimal design of hydraulic fracturing parameters is the key to commercial exploitation of unconventional reservoirs. Hydraulic fracturing test is one of the main methods for optimizing fracturing parameters. It is known that scale effect exists between laboratory experim...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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GeoScienceWorld
2022-06-01
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| Series: | Lithosphere |
| Online Access: | https://pubs.geoscienceworld.org/lithosphere/article/2022/Special%2012/9708300/614451/Multiscale-Sensitivity-Analysis-of-Hydraulic |
| _version_ | 1811200031914459136 |
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| author | Haoran Luo Jun Xie Liuke Huang Jianfa Wu Xuewen Shi Yuesong Bai Haifeng Fu Bing Pan |
| author_facet | Haoran Luo Jun Xie Liuke Huang Jianfa Wu Xuewen Shi Yuesong Bai Haifeng Fu Bing Pan |
| author_sort | Haoran Luo |
| collection | DOAJ |
| description |
AbstractThe optimal design of hydraulic fracturing parameters is the key to commercial exploitation of unconventional reservoirs. Hydraulic fracturing test is one of the main methods for optimizing fracturing parameters. It is known that scale effect exists between laboratory experiments and field treatments of hydraulic fracturing. However, studies on how to eliminate the scale effect are rarely reported. In this work, we conduct sensitivity analysis on rock mechanical parameters and fracturing parameters at different scales by using the dimensionless analysis method. The initiation and propagation process of field hydraulic fracturing is reproduced through laboratory tests, and fracturing parameters are analyzed by using numerical simulation. Our results show that the fracture propagation in the laboratory is inconsistent with that in the field fracturing. The fracture initiation and propagation in the field can be reproduced in experiments by using samples with high modulus and low toughness as well as high-viscosity fracturing fluid. Microcracks are created before the breakdown pressure is reached, and hydraulic fractures extend perpendicular to the direction of the minimum principal stress. The Carter’s leak-off coefficient has little effect on breakdown pressure and propagation pressure, but the injection rate and the horizontal principal stress have significant effects on breakdown pressure. This study provides a theoretical basis and guidance for the design of fracturing parameters both in the laboratory and in the field. |
| first_indexed | 2024-04-12T01:57:00Z |
| format | Article |
| id | doaj.art-5735df1edbf74e869c75d7a5c5dc7071 |
| institution | Directory Open Access Journal |
| issn | 1941-8264 1947-4253 |
| language | English |
| last_indexed | 2024-04-12T01:57:00Z |
| publishDate | 2022-06-01 |
| publisher | GeoScienceWorld |
| record_format | Article |
| series | Lithosphere |
| spelling | doaj.art-5735df1edbf74e869c75d7a5c5dc70712022-12-22T03:52:46ZengGeoScienceWorldLithosphere1941-82641947-42532022-06-012022Special 1210.2113/2022/9708300Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis MethodHaoran Luo0Jun Xie1Liuke Huang2http://orcid.org/0000-0003-4918-8932Jianfa Wu3Xuewen Shi4Yuesong Bai5Haifeng Fu6Bing Pan71 Shale Gas Research Institute PetroChina Southwest Oil & Gas Field Company Chengdu Sichuan 610051 China cnpc.com.cn2 China National Petroleum Corporation Beijing 100007 China cnpc.com.cn3 Department of Geotechnical Engineering College of Civil Engineering Tongji University Shanghai 200092 China tongji.edu.cn1 Shale Gas Research Institute PetroChina Southwest Oil & Gas Field Company Chengdu Sichuan 610051 China cnpc.com.cn1 Shale Gas Research Institute PetroChina Southwest Oil & Gas Field Company Chengdu Sichuan 610051 China cnpc.com.cn6 Institute of Mining Technology Taiyuan University of Technology Taiyuan 030024 China tyut.edu.cn8 Research Institute of Petroleum Exploration and Development PetroChina Langfang 065007 China cnpc.com.cn9 HydroChina ITASCA R and D Center Hangzhou 311122 China AbstractThe optimal design of hydraulic fracturing parameters is the key to commercial exploitation of unconventional reservoirs. Hydraulic fracturing test is one of the main methods for optimizing fracturing parameters. It is known that scale effect exists between laboratory experiments and field treatments of hydraulic fracturing. However, studies on how to eliminate the scale effect are rarely reported. In this work, we conduct sensitivity analysis on rock mechanical parameters and fracturing parameters at different scales by using the dimensionless analysis method. The initiation and propagation process of field hydraulic fracturing is reproduced through laboratory tests, and fracturing parameters are analyzed by using numerical simulation. Our results show that the fracture propagation in the laboratory is inconsistent with that in the field fracturing. The fracture initiation and propagation in the field can be reproduced in experiments by using samples with high modulus and low toughness as well as high-viscosity fracturing fluid. Microcracks are created before the breakdown pressure is reached, and hydraulic fractures extend perpendicular to the direction of the minimum principal stress. The Carter’s leak-off coefficient has little effect on breakdown pressure and propagation pressure, but the injection rate and the horizontal principal stress have significant effects on breakdown pressure. This study provides a theoretical basis and guidance for the design of fracturing parameters both in the laboratory and in the field.https://pubs.geoscienceworld.org/lithosphere/article/2022/Special%2012/9708300/614451/Multiscale-Sensitivity-Analysis-of-Hydraulic |
| spellingShingle | Haoran Luo Jun Xie Liuke Huang Jianfa Wu Xuewen Shi Yuesong Bai Haifeng Fu Bing Pan Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method Lithosphere |
| title | Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method |
| title_full | Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method |
| title_fullStr | Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method |
| title_full_unstemmed | Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method |
| title_short | Multiscale Sensitivity Analysis of Hydraulic Fracturing Parameters Based on Dimensionless Analysis Method |
| title_sort | multiscale sensitivity analysis of hydraulic fracturing parameters based on dimensionless analysis method |
| url | https://pubs.geoscienceworld.org/lithosphere/article/2022/Special%2012/9708300/614451/Multiscale-Sensitivity-Analysis-of-Hydraulic |
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