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Numerical Investigation of Fracture Network Formation under Multiple Wells
المؤلفون المشاركون
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-20
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
A two-step fracturing method is proposed to investigate the hydraulic fracture evolution behavior and the process of complex fracture network formation under multiple wells.
Simulations are conducted with Rock Failure Process Analysis code.
Heterogeneity and permeability of the rocks are considered in this study.
In Step 1, the influence of an asymmetric pressure gradient on the fracture evolution is simulated, and an artificial structural plane is formed.
The simulation results reflect the macroscopic fracture evolution induced by mesoscopic failure; these results agree well with the characteristics of the experiments.
Step 2, which is based on the first step, investigates the influence of preexisting fractures (i.e., artificial structural planes) on the subsequent fracturing behavior.
The simulation results are supported by mechanics analysis.
Results indicated that the fracture evolution is influenced by pressure magnitude on a local scale around the fracture tip and by the orientation and distribution of pore pressure on a global scale.
The constant pressure in wellbore H2 can affect fracture propagation by changing the water flow direction, and the hydraulic fractures will propagate to the direction of higher local pore pressure.
Furthermore, the artificial structural planes influence the stress distribution surrounding the wellbores and the hydraulic fracture evolution by altering the induced stresses around the preexisting fractures.
Finally, fracture network is formed among the artificial structural planes and hydraulic fractures when multiple wells are fractured successively.
This study provides valuable guidance to unconventional reservoir reconstruction designs.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Men, Xiaoxi& Li, Jiren. 2020. Numerical Investigation of Fracture Network Formation under Multiple Wells. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1193512
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Men, Xiaoxi& Li, Jiren. Numerical Investigation of Fracture Network Formation under Multiple Wells. Mathematical Problems in Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1193512
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Men, Xiaoxi& Li, Jiren. Numerical Investigation of Fracture Network Formation under Multiple Wells. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1193512
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1193512
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