کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8128191 | 1522990 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical modeling of multiple fractures propagation in anisotropic formation
ترجمه فارسی عنوان
مدل سازی عددی انتشار چند شکستگی در تشکیل آنیزوتروپیک
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
شکستگی هیدرولیکی، شکستگی های متعدد بی خوابی سنگ، سایه استرس، روش المان محدود
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
In this study, a fully coupled model is presented for simulating the propagation of multiple hydraulic fractures in anisotropic formation. Rock anisotropy is captured by using anisotropic constitutive relation to describe solid deformation and using modified maximum circumferential stress to determine fracture propagation. Besides, fluid flow in the wellbore is established to partition injection into each fracture for consideration of stress shadowing effect. The extended finite element method is used in the discretization of stress equation, and Newton' iteration is proposed to solve the fully coupled problems. The numerical method is verified against other solutions for one fracture and two fractures propagation problems in the literature. The effect of rock anisotropy on hydraulic fractures is analyzed in the following aspects: material angle, ratio of Young's modulus and fracture toughness. If material angle is not aligned with fractures initiating direction, fractures would deflect towards the direction of material angle. Ratio of Young's modulus could enhance this effect, but it is in the opposite for ratio of fracture toughness. Results indicate that the simultaneous propagation of multiple hydraulic fractures in anisotropic formation is determined by two competing factors: stress shadowing and rock anisotropy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Natural Gas Science and Engineering - Volume 53, May 2018, Pages 337-346
Journal: Journal of Natural Gas Science and Engineering - Volume 53, May 2018, Pages 337-346
نویسندگان
Qingdong Zeng, Wenzheng Liu, Jun Yao,