射孔作业对孔道周围岩石损伤规律实验研究
Research and Exploration in Laboratory（2017）
Abstract
利用高温高压射孔实验装置对水泥试样进行了加围压射孔实验,以研究射孔作业对其孔道周围岩石的破坏规律.结果表明:射孔作业对其孔道周围岩石会产生不同程度的损伤破坏,其破坏形式由近孔向外依次为压剪损伤区、拉伸损伤严重区、拉伸损伤衰减区;而随着围压的增加,拉伸损伤严重区范围会减小,裂纹数目减少,损伤程度降低.计算发现孔道周围岩石的渗透率较射孔前有明显增加.本实验结果将为科学分析压裂裂缝起裂规律打下了一定理论基础.
MoreTranslated text
Key words
perforation,crack distribution,damage law,permeability of rocks around perforating tunnel
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined