Coupled flow-stress-damage simulation of deviated-wellbore fracturing in hard-rock
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- 作者：Haiyan Zhua ; zhuhaiyan040129@163.com" class="auth_mail" title="E-mail the corresponding author ; Xing Zhaoa ; Jianchun Guoa ; Xiaochun Jinb ; xiaochunjin@ou.edu" class="auth_mail" title="E-mail the corresponding author ; Fengchen Anc ; Yonghui Wangd ; Xiangdong Laie
- 关键词：Coupled flow-stress-damage model ; Finite element simulation ; Hydraulic fracturing ; Highly deviated wellbore ; Hard formation
- 刊名：Journal of Natural Gas Science and Engineering
- 出版年：2015
- 出版时间：September 2015
- 年：2015
- 卷：26
- 期：Complete
- 页码：711-724
- 全文大小：4242 K
文摘
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A more realistic hydraulic fracturing model for deviated well is established.
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Micro-annulus firstly propagates around wellbore, then it gradually closes.
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Fracture width increases with the well deviated angle in strike-slip formation.
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45° deviated angle is a threshold of various fracture geometries in hard formation.
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Multi-factors analysis of fracture geometry is conducted in a 45° deviated well model.