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中文摘要：
仿生学是一门可与很多学科交叉的边缘性学科，同样与钻井工程技术的融合也将产生创新性成果。在分析仿生非光滑表面减阻、防黏和耐磨特性的基础上，将该理论引入到钻头设计中，研制仿生金刚石钻头。以蜣螂为仿生原形，设计孕镶金刚石钻头的工作层，使工作层底唇面始终具有相同的非光滑形态，始终保持高钻速和长寿命，突显出仿生金刚石钻头的高效率、耐磨和减阻特点。试验结果表明，仿生钻头较普通钻头钻速提高44％、使用寿命增加74％。此外，仿生非光滑表面结构所具有的各种特性可用于改善钻井工程中相对运动的摩擦或滑动部件的使用寿命和工作环境，如可提高钻头、钻杆接头、泥浆泵活塞和缸套的耐磨性，解决钻头泥包问题，减少螺旋钻具和冲击挤密矛头阻力等，应用前景广阔。
英文摘要：
Bionics is a subject which can interact with many disciplines including the drilling engineering. On the basis of analyzing the properties of bionic non-smooth surface, the non smooth theory is applied in the bit design to develop the bionic diamond bit. The dung beetle is selected as bionic prototype in this paper to design the working layer of an impregnated diamond bit, which makes the bottom surface always keep the same non-smooth shape and makes the bionic bit maintain a high penetration rate and long-life to underline their high efficiency, wear and resistance reduction properties. Tests show that the bionic bit improves the drilling speed and lifetime by 44% and 74%, respectively, compared with a common bit. In addition, the bionic non-smooth surface structure has an extensive application prospect in drilling engineering, due to its properties of wear, anti-sticking and resistance reduction. It can be applied to improve the wear performance of bit, pipe joint, cylinder liner and piston of mud pump, and to solve the bit balling and reduce the resistance of spiral drills and impact spearhead.
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