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- The fuzziness of various constraints of stress, displacement, local buckling and section size is considered in the fuzzy optimum design of drilling rig substructures. 考虑了应力约束、位移约束、局部稳定约束和截面尺寸上下界约束条件的模糊性,以底座的结构质量为目标函数,建立了底座结构模糊优化设计的数学模型。
- drilling rig substructure 钻机底座
- Testing and analysis of the vibration of ZJ15 rig substructure at two drilling rates are made. 对一现役ZJ15钻机底座在两种钻井速度下的振动情况进行了测试和分析。
- Test of rig substructure without foundation. 不需用基础的钻机底座试验。
- 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。
- 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。
- 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”。
- Large degree of freedom of drilling frame structure can enlarger efficiently operation scope of drill rig. 多自由度钻架结构，有效地扩展了钻机的作业范围。
- Disc brake system on drilling rigs. 石油钻机盘式刹车制动系统。
- 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；
- Both jackup drilling rig and bucket foundation platform belong to shallow foundation structures. 自升式钻井船和筒型基础平台都属于浅基础结构物。
- A kind of hydraulics system for CKS-I hydraulic gas drainage drilling rig was designed. 介绍了一种自主设计的CKS-I型全液压瓦斯抽排放钻机的液压系统。
- Study on the design of the oil rig substructure 石油钻机钻台基础设计方法探讨
- Drilling rig efficiency unit per month (DREupm) is a key indicator to display drilling productivity. 摘要钻探台月效率是考核钻探施工生产水平的主要指标。
- Everything on a drilling rig directly or indirectly assists the bit in crushing or cutting the rock. 在钻机上的每一种装置都直接或间接地有助于钻头粉碎或切割岩石。
- The most obvious part of a drilling rig is called"a derrick". It is used to lift sections of pipe, which are lowered intothe hole made by the drill. 钻机中最显眼的部件叫“井架”,井架用来吊升分节油管,把油管放入由钻头打出的孔中。
- This paper is a part of a project which is construction on integrated laboratorial platform of drilling rig hoisting system. 本文系钻机起升综合实验台架建设的部分研究内容。
- Integrated hydraulic supply is a new assignment,as more and more hydraulic corollary equipments of drilling rig have come out. 针对当前钻机液压配套设备越来越多的趋势,研制了集成化液压源。
