| 层内爆炸压裂岩石破碎颗粒尺寸的预测模型 |
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| 引用本文： | 赵志红,郭建春.层内爆炸压裂岩石破碎颗粒尺寸的预测模型[J].爆炸与冲击,2011,31(6):669-672. |
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| 作者姓名： | 赵志红 郭建春 |
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| 作者单位： | 西南石油大学油气藏地质及开发工程国家重点实验室,四川成都,610500;西南石油大学油气藏地质及开发工程国家重点实验室,四川成都,610500 |
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| 基金项目： | 国家自然科学基金项目(51074138)~~ |
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| 摘 要： | 借鉴爆破工程经验,结合层内爆炸压裂实际,应用能量守恒原理,将液体炸药爆炸形成的冲击波能
量分为岩石破碎的表面能和岩石内部的应变能,结合岩石断裂理论建立了粉碎区内岩石破碎粒径的预测模
型。实例计算层内爆炸压裂形成的岩石颗粒直径为1.43mm。计算结果表明:液体炸药层内爆炸后形成的
岩石破碎颗粒与石油工业中水力压裂使用的支撑剂粒径相当,能够支撑形成具有一定导流能力的裂缝。
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| 关 键 词： | 爆炸力学 颗粒尺寸 层内爆炸压裂 岩石 |
A size prediction model for rock particles generated by an explosion in fractured rock |
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| ZHAO Zhi-hong,GUO Jian-chun.A size prediction model for rock particles generated by an explosion in fractured rock[J].Explosion and Shock Waves,2011,31(6):669-672. |
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| Authors: | ZHAO Zhi-hong GUO Jian-chun |
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| Institution: | 1.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation, |
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| Abstract: | According to the blasting experiences and actual explosion-in-rock induced rock fragmentation,the shock wave energy produced by the liquid explosive explosion was separated into the surface energy of the fractured rock and the strain energy in the rock by applying the energy conservation law.And based on the rock fracture mechanics principle,a model was proposed to predicate the fragmented rock particle sizes in the cracked region.A calculation example was given in which the diameter of the fragmented rock ... |
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| Keywords: | mechanics of explosion particles size in-fracture explosive fracturing rock |
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