Prediction model of pulling loads in horizontal directional drilling installations and its characteristic parameter sensitivity analysis

被引：2
|
作者：
Cai L.-X. [1 ]
He L.-M. [1 ]
Wang X. [1 ]
Xue Z.-X. [1 ]
机构：
[1] Storage and Transportation and Architectural Engineering in China University of Petroleum
来源：
Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2010年 / 34卷 / 06期
关键词：
Contribution weight; Horizontal directional drilling (HDD); Pipelining; Prediction; Pulling loads; Sensitivity analysis;
D O I：
10.3969/j.issn.1673-5005.2010.06.022
中图分类号：
学科分类号：
摘要：
Decreasing pulling loads is critical for horizontal directional drilling (HDD) projects and a systematical investigation into the effect of parameters on pulling loads is the first step in developing drag reduction process. A new model to predict pulling loads was presented. Based on the model, the influence and sensitivity of parameters on calculation were analyzed and contribution weight of three components was also discussed. It is indicated that the influence of curvature radius and pipe bending stiffness on the pulling loads decreases significantly when over-cut ratio is not smaller than 1.5. Pulling loads is quite sensitive to slurry weight, friction coefficient between pipe and soil, and over-cut ratio. The pipe weight and the resulting friction is the largest contribution part of pulling loads. The resistance fluctuation is maximum caused by the resistance effect of curved section. The friction is the key point of drag reduction technology. The fluidic drag friction is relatively stable, and the contribution weight of fluidic drag friction is less than 10%.
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页码：114 / 119
页数：5
相关论文
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