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近年来牙轮钻头的生产正面临着严峻的挑战。这一挑战来自两个方面:其一是,由于世界石油生产供过于求,油价下跌,勘探、开发工作紧缩,钻头的需求量减少;其二是,PDC钻头的出现,夺走了牙轮钻头的部分市场。伍世界上生产牙轮钻头历史最长、产量最大的美国休斯工具公司于1987年6月被贝克财团所兼并,就是这一危机的集中表现。但是,如果据此断言牙轮钻头的时代已经过去,则未免失之偏颇。虽然PDC钻头因
In recent years, roller cone production is facing severe challenges. The challenge comes from two aspects: First, due to over-production of world oil production, falling oil prices, the exploration and development work is tightening and the demand for drill bits is reduced; secondly, the emergence of PDC bits has taken away some of the roller bit market. The focus of this crisis was on the World Bank acquisition of Hughes Tools, the longest-growing and highest-yielding Hughes Tool Company in the United States in 1987. However, according to the assertion that the age of roller cone drill bits has passed, it is certainly not biased. Although PDC bit due