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Influence of Coal Rock Hardness and Confining Pressure on load Fluctuation Characteristics of PDC bit during Gas Extraction Borehole in Soft Coal Seam

机译：煤岩硬度与施加压力对软煤层气萃取钻孔加态PDC钻头荷波动特性的影响

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Shifeng Wang; Xiaoming Han; Qiangqiang Zhang; Jialiang Li; Detuo Chene;
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1. Study of Load Fluctuation Characteristics of PDC Bit during Gas Extraction Borehole in Soft Coal Seam [J] . Shifeng Wang, Xiaoming Han, Qiangqiang Zhang Open Access Library Journal . 2017,第6期

机译：软煤层瓦斯抽采钻孔中PDC钻头的负荷波动特性研究
2. Study of Load Fluctuation Characteristics of PDC Bit during Gas Extraction Borehole in Soft Coal Seam [J] . Shifeng Wang, Xiaoming Han, Qiangqiang Zhang Open Access Library Journal . 2017,第6期

机译：软煤层瓦斯抽采钻孔中PDC钻头的负荷波动特性研究
3. Influence of Deformation and Instability of Borehole on Gas Extraction in Deep Mining Soft Coal Seam [J] . Xue-Bo Zhang, Shuai-Shuai Shen, Xiao-Jun Feng, Advances in civil engineering . 2021,第a期

机译：钻孔变形与不稳定性对深矿井软煤层气体萃取的影响
4. Surrounding Rock Control Technique for Mining influenced Roadway Overlying Coal Seam During Depressurized Mining of Coal Seam Group [C] . Wang Cheng, Zhang Nong, Li Guichen, International Symposium on Coal Mine Gas Control . 2010

机译：煤层煤层减压开采过程中采矿覆盖煤层的岩土控制技术
5. Controls on coalbed methane potential and gas sorption characteristics of high-volatile bituminous coals in Indiana. [D] . Solano-Acosta, Wilfrido. 2007

机译：控制印第安纳州高挥发分烟煤的煤层气潜力和瓦斯吸附特性。
6. Influence of gas migration on permeability of soft coalbed methane reservoirs under true triaxial stress conditions [O] . Gang Wang, Zhiyuan Liu, Yanwei Hu, 2019

机译：真三轴应力条件下瓦斯运移对软煤层气储层渗透率的影响
7. Influence of polycrystalline diamond compact bit geometric parameters on drilling performance during gas drainage borehole in soft coal seam [O] . Xiaoming Han, Qiangqiang Zhang, Shifeng Wang, 2018

机译：多晶钻石小位几何参数对软煤层煤气排水钻孔钻井性能的影响

Influence of Coal Rock Hardness and Confining Pressure on load Fluctuation Characteristics of PDC bit during Gas Extraction Borehole in Soft Coal Seam

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