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| 水平定向钻回拖载荷预测模型 | |
| 引用本文： | 蔡亮学,何利民,吕宇玲,王丙奎,于德军.水平定向钻回拖载荷预测模型[J].油气储运,2012,31(2):147-151,166. |
| 作者姓名： | 蔡亮学 何利民 吕宇玲 王丙奎 于德军 |
| 作者单位： | 1. 中国石油大学(华东)油气储运与建筑工程学院,山东青岛,266555 2. 中国石化集团管道储运公司工程公司,江苏徐州,221008 3. 中国石油天然气管道局第四工程分公司,河北廊坊,065000 |
| 基金项目： | 中国石油大学研究生创新基金项目“水平定向钻管道穿越回拖过程动态力学特性研究”,BZ10-10 |
| 摘 要： | 从弹性力学与非牛顿流体力学的角度出发,研究了与回拖载荷相关的变量,着重分析了回拖阻力的3个组成部分(管道质量及其引起的管土摩擦力、弯曲段阻力效应引起的阻力与泥浆拖曳阻力)的计算方法,三者求和并根据静力平衡条件可得回拖载荷。3项阻力在回拖载荷中均占有较高的贡献权重,且贡献权重在回拖过程中呈现动态变化。泥浆拖曳阻力是回拖阻力的重要组成部分,将其纳入可更准确地预测回拖载荷的动态特性。根据搜集的HDD安装试验数据,对预测模型进行实例验证,预测结果与试验数据之间良好的一致性表明所提方法的正确性。 |
| 关 键 词： | 水平定向钻 回拖载荷 预测 模型 绞盘效应 弯曲形变 泥浆拖曳阻力 |
Prediction model of backtow loads in horizontal directional drilling installation |
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| Institution: | Cai Liaoxue,He Limin,Lv Yuling,et al |
| Abstract: | In view of theory of elasticity and non-Newtonian fl uid mechanics, this paper has studied the variables which are related to backtow loads. Methods for computing the three components of backtow resistance,mass of the pipe and the corresponded pipe-soil frictional force, drag induced by effect of bending resistance, slurry drag resistance are extensively analyzed. The backtow loads can be obtained based on the sum of the above three components and the static equilibrium condition. All of three kinds of resistance contribute very much to the backtow loads, besides; the weighted factors are also dynamically varied during the backtow process. The slurry drag resistance is an important part of backtow resistance. Including such a component can predict the dynamical characteristic of the backtow loads better. Based on the collected HDD installation & experimental data, the predication model is validated by practical examples. The coincident results between the predicted data and the experimental data show the correctness of the presented method. |
| Keywords: | HDD backtow loads prediction model capstan effect bending deformation slurry drag resistance |
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