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本文叙述了三牙轮钻头齿面结构对破岩效率影响的研究方法,研究工作是用全尺寸钻头在地面钻头试验架上进行。作者根据试验钻头对不同岩石钻进时所测得的钻进参数、钻进指标和钻头的井底模式,结合它们的齿面结构,分析其对破岩效率的影响,找出各钻头齿面结构的优缺点。从而对现有国产钻头提出改进意见,并将所获得的认识用于新钻头的设计之中。
This article describes the tri-cone bit tooth surface structure of the rock breaking efficiency of research methods, the work is to use full-size drill in the ground drill bit test carried out. According to the measured drilling parameters, drilling indexes and the bottom hole pattern of the drill when the test bit is drilling different rocks, the tooth surface structure of the test bit is analyzed to analyze the effect on the rock breaking efficiency and the tooth surface of each bit The advantages and disadvantages of the structure. Thus, existing domestic drill bits are put forward to improve their opinions, and the acquired knowledge is used in the design of new drill bits.