Abstract Fixed-cutter drill bit is a key component of the whole drilling system. Its quality and service life greatly depend on the erosion resistance of the bit body. A limitation to the successful development of improved erosion resistant materials is the lack of a meaningful, and standardized test method. In this work, a slurry erosion test method has been developed to fill this technical void, which incorporates environmental aspects of fixed-cutter drill bits and is capable of closely simulating the downhole conditions. Wear resistant materials that form the body of a drill-bit are created either by a liquid metal infiltration of copper-based metal matrix composite or through the deposition of a hardfacing layer on a hardened and tempered steel. Examples of both materials are described herein, where laboratory testing correlates to the downhole conditions, validating that the developed slurry erosion test is appropriate and meaningful.

中文翻译：

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改进型磨料水射流对油气钻头本体材料抗泥浆冲刷性能的评价

摘要 固定刀具钻头是整个钻井系统的关键部件。其质量和使用寿命在很大程度上取决于钻头体的抗侵蚀能力。成功开发改进的抗侵蚀材料的一个限制是缺乏有意义的、标准化的测试方法。在这项工作中，开发了一种泥浆侵蚀测试方法来填补这一技术空白，该方法结合了固定刀具钻头的环境因素，能够密切模拟井下条件。形成钻头主体的耐磨材料是通过铜基金属基复合材料的液态金属渗透或通过在淬火和回火钢上沉积表面硬化层而产生的。本文描述了两种材料的实例，