提出一种确定石油钻井井架结构屈曲荷载的动态评估方法。
In this paper, a dynamic evaluative method is provided to define the buckling load of oilfield derrick.
与承载能力降低的同时，井架结构的应变参数也发生相应的变化。
Along with the lowering of the load capacity of the derrick, the strain parameters of the structure change accordingly.
计算实例表明，井架上作用的载荷与井架结构频率的平方三线性关系。
Example of calcural shows the load on the derrick is linear with square of the structural frequency of the derrick.
完成了安装顶驱后反扭矩的计算和井架力学分析，并提出了井架结构的改造方案。
Having completed calculation of top drive counter-torque and mast mechanics analysis, an upgrading proposal has been put forward.
运用空气动学原理，研究了大庆油田的陆地风场特性，进行了井架结构风载荷谱理论分析。
The principle of the aerodynamics is used to study the land wind field characteristic of the Daqing oil field and the wind load spectrum theory of oil rig derrick has been established.
过去乃至目前，对石油井架的结构力学特性试验，国内许多用户仍普遍采用静力试验方法。
Many domestic production units have been using static test method as structural mechanics performance test of derrick from the past till these days.
结果表明，井架绷绳的非线性效应主要对结构的刚度产生影响。
The effect of derrick guy wires nonlinear behavior to structure's deformation has been analyzed.
型井架主体结构为前开口形轻便井架，整体分为四段，有锥销连接，具有拆除方便、整体稳定性强的特点。
The major structure of K-type Mast is open-face mast, and the body is divided into four sections, which are connected by tapers and convenient to be dismantled with good stability.
气动绞车操作者要确认气动绞车钢丝绳和井架不干涉(可以用滑轮导向)，以避免损伤井架的钢结构，特别是指梁。
The air winch Operator shall ensure that the winch wire is moving freely in the derrick (possibly guided by pulleys) to avoid any damage to the steel structure, especially the fingerboard.
为此，采用等价应力法对有初始变形的井架进行结构分析。
An equivalent stress method for the structural analysis of derrick with initial deformation is offered.
井架采用三节伸缩式结构，底座采用平行四边形结构，能用液缸整体起升。
The structure of the derrick is triple-section telescoping structure, substructure is parallelogram structure, can be lifted by hydraulic cylinder.
采油井架钢结构是钻采石油时所必需的支架结构，对油田生产起着重要作用。
An oil derrick is a necessary supporting frame, and plays an important role in oil production.
为满足液压轮式通井机的使用要求而设计的桅杆式井架采用板焊结构，主体截面为长方形的方形钢，材料为HG60。
The frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate, its section is oblong armor plate, and its material is HG60.
本文介绍了大型箱型钢结构井架的制作方法及质量控制要素。
The article describes the fabrication methods and quality control factors on Heavy Box-Type Steel Headframe.
超深井钻机井架底座在结构形式、构件布局、主体材料的选取等方面均有较高要求，常规的井架、底座主体材料难以满足超深井钻机特定的载荷和工况要求。
There is a high requirement for the derrick substructure of the ultra-deep well in structural form, layout of component parts and main materials.
本发明涉及一种高强度结构钢在石油钻机井架设计制造中的应用。
The invention relates to the application of a high-strength structure steel in the design and manufacturing of the derrick of a petroleum drilling machine.
本次井架模型动态特性试验结果可以作为石油井架非线性结构模型建立的数据基础。
The results of modal analysis may be regarded as the base of data to establish the nonlinear model of F320 model derrick.
钻机井架作为石油钻机的主要承载部件，在不同工况下承受多种动、静载荷的作用，对其结构的设计和使用性能有着严格的要求。
Derrick is the main supporting parts of drilling rig. It bears much static and dynamic load under different conditions. So there are high requirements for design and performance of derrick.
钻机井架作为石油钻机的主要承载部件，在不同工况下承受多种动、静载荷的作用，对其结构的设计和使用性能有着严格的要求。
Derrick is the main supporting parts of drilling rig. It bears much static and dynamic load under different conditions. So there are high requirements for design and performance of derrick.
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