【摘要】 水射流作为一种新型切割工具运用于石油钻井中,与机械联合破岩可提高破岩效率。根据破岩机理、井队设备与地面条件,不改变原来三牙轮钻头的结构,设计了超高压射流辅助钻井钻头。钻头的设计主要包括高压合金管的设计、定心夹具的设计、喷嘴的设计以及超高压连接体的设计。更多还原

【Abstract】 Water jet, as a novel rock cutting tool, can be combi ned with mechanical method to increase penetrating efficiency. Based on the rock breaking mechanism, rig equipment and surface conditions, the drilling bit comb ined with super high pressure water jet is designed with no change of the struct ures of three cone roller bits. The bit plan includes high pressure alloy pipe, centering clamp, nozzle and coupler.更多还原