文章详细信息 关键词： 实钻条件;;可钻性;;岩石破碎;;井底应力;;钻速 [gap=919]Keywords: real drilling condition;drillability;rock failure;downhole stress;drilling rate
基于66个网页-相关网页
...声发射；岩石破裂；单轴加载；裂纹扩展过程 [gap=2356]Key words： rock mechanics； acoustic emission(AE)； rock failure； uniaxial loading； crack propagation process ...
基于22个网页-相关网页
rock failure process analysis 岩石破裂过程分析 ; 岩石破裂过程分析系统
rock-failure 岩石破碎
rock failure tests 岩石破裂试验
country rock failure 围岩失稳
rock failure process 岩石破裂全过程
rock failure criterion 岩石破坏判据
The horizontal well stress distribution and the rock failure criterion constitute a fracture initiation mathematical model,which was solved by the iteration method.
水平井井筒应力分布和岩石破坏准则构成了水平井压裂裂缝起裂数学模型,利用迭代法对模型进行了求解。
参考来源 - 低渗透油藏水平井压裂理论及现场工艺探讨However, as an instantaneous and instable phenomenon, it still suffers from the typical rock failure process—the initiation, propagation and coalescence of micro-fracture.
但岩爆作为一种失稳破坏现象,尽管其发生过程短暂,但仍然经历了孕育、发生和发展这一岩石破裂所具有的共同特征。
参考来源 - 围压卸荷诱发岩石破坏机理研究The fractal dimension and b-value reach to the minimum value at the critical point of rock failure. During rock failure process, variable tendencies of fractal dimension and b-value are similar.
在岩石破坏过程中,声发射分形维值和b值的变化趋势相近。
参考来源 - 岩石破裂过程中的声发射b值及分形特征研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The results show that ANN can be used to effectively predict the electromagnetic radiation and acoustic emission signals so as to provide reliable data for judging the state of coal and rock failure.
研究结果表明，采用神经网络可以有效预测电磁辐射和声发射信号，为判定煤岩变形破裂状态提供依据。
So LURR can be used as the precursor of rock failure and earthquake prediction.
故此，加卸载响应比可以被用做岩石破坏及地震预测的前兆。
A finite difference software package FLAC was used to study the rock failure process.
采用有限差分法FLAC程序来分析岩石的破坏过程。
应用推荐