A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics
The conventional method to predict hydraulic fracture height depends on linear elastic mechanics, and the typical Gulrajani–Nolte chart fails to reflect fracture height when the net pressure in the fracture is too high. Based on fluid–solid coupling equations and rock fracture mechanics, a new chart...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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The Royal Society
2018-01-01
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| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180600 |
| _version_ | 1828776990895767552 |
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| author | Xiaoqiang Liu Zhanqing Qu Tiankui Guo Dongying Wang Qizhong Tian Wei Lv |
| author_facet | Xiaoqiang Liu Zhanqing Qu Tiankui Guo Dongying Wang Qizhong Tian Wei Lv |
| author_sort | Xiaoqiang Liu |
| collection | DOAJ |
| description | The conventional method to predict hydraulic fracture height depends on linear elastic mechanics, and the typical Gulrajani–Nolte chart fails to reflect fracture height when the net pressure in the fracture is too high. Based on fluid–solid coupling equations and rock fracture mechanics, a new chart is obtained by the ABAQUS extended finite-element method. Compared with the Gulrajani–Nolte chart, this new chart shows that longitudinal propagation of hydraulic fracture is still finite when the net pressure in the fracture is higher than in situ stress difference between reservoir and restraining barrier. The barrier has a significant shielding effect on the longitudinal propagation of hydraulic fracture, and there is a threshold for an injection rate of fracturing fluid to ensure hydraulic fracture propagates in the barrier. Fracture height decreases with the increase of in situ stress difference. When the ratio of net pressure to in situ stress difference is less than 0.56, the propagation of hydraulic fracture is completely restricted in the reservoir. Hydraulic fracturing parameters in Well Shen52 and Well Shen55 are optimized by using the new chart. Array acoustic wave logging shows that the actual fracture height is at an average error within 14.3% of the theoretical value, which proves the accuracy of the new chart for field application. |
| first_indexed | 2024-12-11T16:12:28Z |
| format | Article |
| id | doaj.art-669fd2523a4c4d268636c32c4a702f71 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-11T16:12:28Z |
| publishDate | 2018-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-669fd2523a4c4d268636c32c4a702f712022-12-22T00:59:03ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-0151010.1098/rsos.180600180600A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanicsXiaoqiang LiuZhanqing QuTiankui GuoDongying WangQizhong TianWei LvThe conventional method to predict hydraulic fracture height depends on linear elastic mechanics, and the typical Gulrajani–Nolte chart fails to reflect fracture height when the net pressure in the fracture is too high. Based on fluid–solid coupling equations and rock fracture mechanics, a new chart is obtained by the ABAQUS extended finite-element method. Compared with the Gulrajani–Nolte chart, this new chart shows that longitudinal propagation of hydraulic fracture is still finite when the net pressure in the fracture is higher than in situ stress difference between reservoir and restraining barrier. The barrier has a significant shielding effect on the longitudinal propagation of hydraulic fracture, and there is a threshold for an injection rate of fracturing fluid to ensure hydraulic fracture propagates in the barrier. Fracture height decreases with the increase of in situ stress difference. When the ratio of net pressure to in situ stress difference is less than 0.56, the propagation of hydraulic fracture is completely restricted in the reservoir. Hydraulic fracturing parameters in Well Shen52 and Well Shen55 are optimized by using the new chart. Array acoustic wave logging shows that the actual fracture height is at an average error within 14.3% of the theoretical value, which proves the accuracy of the new chart for field application.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180600hydraulic fracture heightfluid–solid coupling equationsrock fracture mechanicsabaqus extended finite-elementacoustic wave logging |
| spellingShingle | Xiaoqiang Liu Zhanqing Qu Tiankui Guo Dongying Wang Qizhong Tian Wei Lv A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics Royal Society Open Science hydraulic fracture height fluid–solid coupling equations rock fracture mechanics abaqus extended finite-element acoustic wave logging |
| title | A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics |
| title_full | A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics |
| title_fullStr | A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics |
| title_full_unstemmed | A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics |
| title_short | A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics |
| title_sort | new chart of hydraulic fracture height prediction based on fluid solid coupling equations and rock fracture mechanics |
| topic | hydraulic fracture height fluid–solid coupling equations rock fracture mechanics abaqus extended finite-element acoustic wave logging |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180600 |
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