An Experimental Study of Interaction Between Hydraulically Induced and Pre-Existing Fractures
An Experimental Study of Interaction Between Hydraulically Induced and Pre-Existing Fractures
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DOI：
10.2118/10847-ms
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
T. L. Blanton
中科院分区：
文献类型：
--
作者：
T. L. Blanton
在室内进行了三轴应力状态下预裂材料的水力劈裂试验。已经对泥盆纪页岩的天然裂缝块以及水化物块进行了测试，其中水力裂缝与预裂缝的接近角度以系统的方式变化。结果发现，水力压裂裂缝往往只有在高的差应力和高角度的方法跨越预先存在的裂缝。在大多数情况下，水力压裂要么转向，要么被预先存在的裂缝阻止。参考文献5。
Hydraulic fracturing experiments have been performed in the laboratory in pre-fractured material under triaxial states of stress. Tests have been run on naturally fractured blocks of Devonian shale as well as blocks of hydrostone in which the angle of approach of the hydraulic fracture to the pre-fracture was varied in a systematic way. It was found that hydraulic fractures tend to cross pre-existing fractures only under high differential stresses and high angles of approach. In most cases the hydraulic fractures were either diverted or arrested by the pre-existing fractures. 5 refs.