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仿生非光滑螺旋钻头的设计及试验
Experiments and Design of Bionic Non-smooth Spiral Bit
【摘要】 将仿生非光滑理论应用于螺旋钻头设计上,以解决粘性土钻进中螺旋钻头阻力大、粘附严重的难题。加工的仿生非光滑螺旋钻头,经实钻试验表明,与常规螺旋钻头相比,前者脱土率提高了70%,钻机耗油量降低了53.3%,钻进效率提高70%,具有明显的脱附和减阻效果。从而,为大口径螺旋钻施工提供了一种新型钻具。
【Abstract】 The bionics theory was applied on the spiral bits,and then a non-smooth spiral bit was designed and processed for carried out the problem of serious sticking.Experiments finally proved that the bionic non-smooth spiral bit has a significant effect in the area of desorption and reducing resistance,compared with the conventional spiral bit,the desorption rate and drilling efficiency have been enhanced 70% and the fuel consumption has been decreased 53.3%.So it is novel tool for drilling of large diameter spiral.
【关键词】 螺旋钻头；
仿生非光滑；
减粘；
降阻；
凸包；
【Key words】 spiral bit； bionic non-smooth； reduce the adhesion； reduce resistance； convex hull；
【Key words】 spiral bit； bionic non-smooth； reduce the adhesion； reduce resistance； convex hull；
【基金】 国家“863”项目(2006AA06Z221)
- 【文献出处】 吉林大学学报(地球科学版) ,Journal of Jilin University(Earth Science Edition) , 编辑部邮箱 ,2009年02期
- 【分类号】P634.41
- 【被引频次】22
- 【下载频次】453