دورية أكاديمية
Numerical Investigation of Influence of Fluid Rate, Fluid Viscosity, Perforation Angle and NF on HF Re-Orientation in Heterogeneous Rocks Using UDEC T-W Method
| العنوان: | Numerical Investigation of Influence of Fluid Rate, Fluid Viscosity, Perforation Angle and NF on HF Re-Orientation in Heterogeneous Rocks Using UDEC T-W Method |
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| المؤلفون: | Shuai Zhang, Jinhai Xu, Liang Chen, Mingwei Zhang, Takashi Sasaoka, Hideki Shimada, Haiyang He |
| المصدر: | Machines, Vol 10, Iss 2, p 152 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Mechanical engineering and machinery |
| مصطلحات موضوعية: | UDEC T-W method, fluid rate, fluid viscosity, perforation angle, natural fracture, HF re-orientation, Mechanical engineering and machinery, TJ1-1570 |
| الوصف: | Numerical simulation is very useful for understanding the hydraulic fracture (HF) re-orientation mechanism from artificial weaknesses. In this paper, the UDEC T-W (Trigon–Weibull distribution) modeling method is adopted to simulate the hydraulic fracturing process in heterogeneous rocks. First, the reliability of this method is validated against previous laboratory experiments and numerical simulations. Then the effects of fluid rate, fluid viscosity, perforation angle and natural fracture (NF) on the HF re-orientation process in heterogeneous rocks are studied independently. The results show that the HF re-orientation process depends on the combined effect of these factors. The HF re-orientation distance increases significantly, the final HF re-orientation trajectory becomes more complex and the guiding effect of perforation on the HF propagation path is more evident with the increase of fluid rate, fluid viscosity, and perforation angle if the hydraulic fracturing is performed in relatively heterogeneous rocks, while the differential stress is the main influencing factor and is more likely to dictate the HF propagation path if the rocks become relatively homogeneous. However, increasing the fluid viscosity and fluid rate can attenuate the impact of differential stress and can promote HF propagation along the perforation direction. Besides, NFs are also the important factor affecting HF re-orientation and induce secondary HF re-orientation in some cases in heterogeneous rocks. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 10020152 2075-1702 |
| العلاقة: | https://www.mdpi.com/2075-1702/10/2/152Test; https://doaj.org/toc/2075-1702Test |
| DOI: | 10.3390/machines10020152 |
| الوصول الحر: | https://doaj.org/article/dedc59e3804f4084b870837235b0d39aTest |
| رقم الانضمام: | edsdoj.59e3804f4084b870837235b0d39a |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 10020152 20751702 |
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| DOI: | 10.3390/machines10020152 |