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| Application of mechanicS model of rocks containing distributed cracks in TO hydraulic fracturing |
| Yao Lu，Zhang Ruojing，Shen Hao |
| (Department of Engineering Mechanics and Technology，Tongji University，Shanghai 200092 China) |
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Abstract The reservoir rocks are treated as the media containing randomly distributed cracks，with or without petroleum in their interiors，instead of homogeneous isotropic elastic body. The model developed by Budiansky on the elastic body containing randomly distributed cracks，with or without fluid in their interiors，is adopted to describe rocks. Accordingly，the fracture opening displacement equation，in which the effect of the cracks has been taken into account，is developed. Numerical simulation results prove that this model accords with the practical situation better.
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1 John L D. 水力压裂技术新发展[M]. 蒋 阗译. 北京：石油工业出版社，1995
2 Budiansky B，O¢Connell R J. Elastic moduli of a cracked solid[J]. Int. J. Solids Structures，1976，12(3)：81～97
3 乔继彤. 水力压裂的力学模型[博士学位论文][D]. 上海：同济大学，1999
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WANG Hongjian1, 2, 3, 4, YIN Bohao1, WANG Yongbo1, XU Xianlei4, ZHAO Shankun3*, ZHAO Fei1,SHI Xiaoshan2, WANG Guozhu5. Fluid-solid coupling mechanisms in the evolution of hydraulic fracture networks in large-scale true triaxial tight sandstone[J]. , 2026, 45(6): 1723-1739. |
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2002, Vol. 21 
