| Hydrofracturing Breakdown Modes Under Different In-Situ Stress States |
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| 引用本文： | Yang Youkui Xiao Changfu Wu Gang Qiu Xiande. Hydrofracturing Breakdown Modes Under Different In-Situ Stress States[J]. 保鲜与加工, 1993, 0(3): 30-35 |
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| 作者姓名： | Yang Youkui Xiao Changfu Wu Gang Qiu Xiande |
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| 作者单位： | Yang Youkui Xiao Changfu Wu Gang Qiu Xiande |
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| 摘 要： | An analysis is made for various kinds of possible breakdown modes during hydrofracture,and the corresponding breakdown pressure,from which a method is given to distinguish which kind of failure mode practically occured. The analysis shows that the initial failure mode at the wellbore wall may be the pure tension failure or shear failure according to different stress states and mechanical properties of rock,therefore there are two different stress state configurations resulting in vertical shear fractures.
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| 关 键 词： | hydrofracturing breakdown mode tension breakdown shear breakdown |
Hydrofracturing Breakdown Modes Under Different In-Situ Stress States |
| |
| Yang Youkui Xiao Changfu Wu Gang Qiu Xiande. Hydrofracturing Breakdown Modes Under Different In-Situ Stress States[J]. Storage & Process, 1993, 0(3): 30-35 |
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| Authors: | Yang Youkui Xiao Changfu Wu Gang Qiu Xiande |
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| Affiliation: | Yang Youkui Xiao Changfu Wu Gang Qiu Xiande |
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| Abstract: | An analysis is made for various kinds of possible breakdown modes during hydrofracture,and the corresponding breakdown pressure,from which a method is given to distinguish which kind of failure mode practically occured. The analysis shows that the initial failure mode at the wellbore wall may be the pure tension failure or shear failure according to different stress states and mechanical properties of rock,therefore there are two different stress state configurations resulting in vertical shear fractures. |
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| Keywords: | hydrofracturing breakdown mode tension breakdown shear breakdown |
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