| 水力压裂的能量平衡与断裂韧度 |
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| 引用本文： | 阳友奎 吴刚. 水力压裂的能量平衡与断裂韧度[J]. 重庆大学学报(自然科学版), 1992, 15(2): 1-6 |
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| 作者姓名： | 阳友奎 吴刚 |
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| 作者单位： | 重庆大学资源及环境工程系(阳友奎，吴刚，邱贤德)，重庆大学资源及环境工程系(肖长富) |
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| 摘 要： | 通过对常用水力压裂模型中忽略岩石断裂韧度效应这一现象的讨论,给出了全面考虑水力压裂中各种影响因素的能量平衡方程,并由此建立了通过水力压裂实验直接确定岩石视在K_(1c)值的方法。最后通过对影响岩石视在断裂韧度因素的讨论,论证了水力压裂法确定的岩石视在K_(1c)值大大地大于标准3点弯曲实验值的必然性。
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| 关 键 词： | 水力压裂 能量平衡 断裂韧度 |
ENERGY BALANCE OF HYDRAULIC FRACTURE AND FRACTURE TOUGHNESS |
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| Yang Youkui Wu Gang Qiu Xiande Xiao Changfu. ENERGY BALANCE OF HYDRAULIC FRACTURE AND FRACTURE TOUGHNESS[J]. Journal of Chongqing University(Natural Science Edition), 1992, 15(2): 1-6 |
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| Authors: | Yang Youkui Wu Gang Qiu Xiande Xiao Changfu |
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| Affiliation: | Yang Youkui Wu Gang Qiu Xiande Xiao Changfu |
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| Abstract: | Based on the discussion of the phenomenon that the effect of fracture toughness is neglected in general hydraulic fracturing models, this paper gives the energy balance equation in-colding all parameters in hydraulic fracturing and proposes a method of determining the apparent fracture toughness of rock from hydraulic fracture experimental data. The discussion on the factors affecting apparent toughness indicates the inevitability that the apparent fracture toughness of rock measured by hydraulic fracture experimental data is significantly higher than that measured by the standard three-point bending method. |
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| Keywords: | hydraulic fracture energy balance fracture toughness |
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