| 饱和含水煤岩单轴压缩条件下的声发射特征 |
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| 引用本文： | 唐书恒,颜志丰,朱宝存,张松航,张佳赞.饱和含水煤岩单轴压缩条件下的声发射特征[J].煤炭学报,2010,35(1):37-41. |
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| 作者姓名： | 唐书恒 颜志丰 朱宝存 张松航 张佳赞 |
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| 作者单位： | 中国地质大学能源学院; |
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| 基金项目： | 国家高科技发展计划(863)基金资助项目(2006AA06Z235);;国家自然科学基金资助项目(40772096,40972108);;国家重点基础研究发展计划(973)基金资助项目(2006CB202202,2009CB219604);;国家科技重大专项课题(2008ZX05034-003) |
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| 摘 要： | 为了模拟研究煤储层的压裂特征，进行了饱和含水煤岩单轴压缩破裂实验以及声发射测试。结果表明：饱和含水煤岩在单轴压缩条件下首先产生变形，然后出现裂隙，直到最后破坏。根据声发射和应力－应变曲线特征将煤岩压裂过程分为迸裂型、破裂型和稳定型三大类。煤岩压裂过程受试件取样方向影响，当试件轴向平行面割理时，破裂过程出现迸裂型、破裂型，而无稳定型；当试件轴向垂直面割理时，破裂过程出现破裂型、稳定型，而无迸裂型。
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| 关 键 词： | 饱和含水煤岩 单轴压缩 声发射 破裂过程 |
Acoustic emission characteristics of water saturated coals in uniaxial compression experiment |
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| TANG Shu-heng,YAN Zhi-feng,ZHU Bao-cun,ZHANG Song-hang,ZHANG Jia-zan.Acoustic emission characteristics of water saturated coals in uniaxial compression experiment[J].Journal of China Coal Society,2010,35(1):37-41. |
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| Authors: | TANG Shu-heng YAN Zhi-feng ZHU Bao-cun ZHANG Song-hang ZHANG Jia-zan |
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| Affiliation: | School of Energy Resources/a>;China University of Geosciences/a>;Beijing 100083/a>;China |
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| Abstract: | In order to investigate the fracturing characteristics of coal reservoir,the uniaxial compression experiment was conducted for water-saturated coals,and the acoustic emission testing was carried out simultaneously.The results indicate that water-saturated coals occurre compression deformation first,then fracture,and finally are destroyed.Based on both the acoustic emission characteristics and stress-strain curves characteristics,the fracturing process of water-saturated coals were classified into three type... |
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| Keywords: | water-saturated coals uniaxial compression acoustic emission fracturing process |
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