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- Based on certain mechanical quality of the rock, the analysis on the Polycrystalline Diamond Compacts (PDC) bit and the rotary percussive drilling is carried out. 在管棚支护所钻岩石的力学性质基础上,对管棚支护钻孔所采用PDC钻头和回转冲击的钻进方式进行了比较分析。
- APPLICATION OF ROTARY PERCUSSION DRILLING TECHNOLOGY IN REVERSE THRUST NAPPE STRUCTURE FORMATION 旋冲钻井技术在逆掩推覆体地层的应用
- Effects of Drilling Conditions on Crushing Rocks while Rotary Percussion Drilling 旋冲钻井参数对破岩效率的影响研究
- Keywords Rotary percussion drilling;Water-saving drilling;Droughty water scarce areas;Percussion device; 回转冲击钻进;节水钻探;干旱缺水地区;冲击器;
- Keywords CJF 20 percussion drill rig with reverse circulation;percussion with reverse circulation;impacting breaking rock;drilling parameter; 关键词CJF-20冲击反循环钻机;冲击反循环;冲击碎岩;钻进参数;
- GCF-20A Reverse Circulation Percussive Drilling Rig GCF-20A型冲击-回转反循环工程钻机
- Keywords reverse thrust nappe structure formation rotary percussion drilling DGSC hydraulic impacter application rate of penetration; 逆掩推覆体地层;旋冲钻井;液动冲击器;应用;钻速;
- percussion drilling rig 顿钻机
- rotary percussion drilling 旋转冲唤钻进,冲旋钻井
- rotary percussion drill 旋转冲唤钻机
- Diamond drilling replaced percussion drilling. 金钻探取代了冲击钻探。
- With expert chassis of Rotary drilling rig and strong box type mast, it has high working stability. 应用徐工成熟技术制造的旋挖钻机底盘，结实的箱型臂架，具有超强稳定性；
- AC-SCR-DC mode is the best driving mode for a drilling rig. DC驱动方式是目前钻机最好的驱动传动方式。
- Development of GCF Series of Reverse Circulation Construction Percussive Drill Rig GCF系列冲击反循环工程钻机的研制
- MAN300 drilling rig is working in gravel area in West Luntai, Sinkiang. 300型钻机在新疆轮台西砾石区进行地震钻井施工。
- YG-30 drilling rig is a full hydraulic operated top drive power head drill. 型工程钻机为全液压驱动动力头式钻机。
- Some remarks on developing technique of drilling rig disc brake in China. 关于发展我国钻机盘式刹车技术的几点认识。
- The LB 28 large rotary drilling rig is an ideal complement to the LRB combined piling and drilling rigs. LB28大型旋转钻机是LRB组合打桩和钻孔机器的理想补充。
- rotary percussive drilling 回转冲魂进
- If it is thoughtthat the rocks in a certain area contain oil, a "drilling rig"is assembled. 如果认为某地区的岩层含石油,则在该处安装“钻机”。
