This paper discusses the prediction of the drill stem torque and bit forward direction in an offshore horizontal well by nonlinear FEM.
探讨了非线性有限元在预测水平井钻进中的钻柱扭矩及钻头前进方向的应用。
Bit speed is almost no influence on the torque.
钻头转速对钻头扭矩几乎无影响。
The result of experiment shows that the effect of weight on bit on the torque is different for two different conditions of surface scraping rock break and volume break.
分析试验结果得出，对于表面刮削破碎和体积破碎两种岩石破碎状态，钻压对扭矩的影响不一样。
This feature is a bit like a diaphragm coupling bellows coupling, in fact, the way of torque transfer coupling are similar.
膜片联轴器这种特性有点像波纹管联轴器，实际上联轴器传递扭矩的方式都差不多。
We can analyse and diagnose bit working state based on integrated logging data. The main characteristic parameters for bit wearing degree are torque and drilling time.
钻头的工作情况可以根据综合录井资料分析判断，反映钻头磨损程度的主要特征参数有扭矩和钻时。
This paper discusses the apply in the drilling engineering by the method of nonlinear limited element, which is about the torque of string and direction of bit and while drilling.
本文探讨了结构力学分析方法——非线性有限元性在预测水平井钻进中的工程应用。
This paper discusses the apply in the drilling engineering by the method of nonlinear limited element, which is about the torque of string and direction of bit and while drilling.
本文探讨了结构力学分析方法——非线性有限元性在预测水平井钻进中的工程应用。
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