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LX和Stratapax钻头出现以来,石油钻井所使用的金刚石钻头着实有所改善。但是,作为钻头,依然存在不少问题,特别是钻头中心部位切削刃的问题。钻头中心部位的切削刃(金刚石或别的切削刃),由于切削线速度低,未能充分的切削岩石,而是在压力的作用下压碎岩石的,其结果,清除岩屑困难,钻进效率降低。这种情况,特别是在软地层中钻进更为显著。这是造成钻头的损伤或早期摩损的原因。为了解决这些问题,法国石油公司(Total CFP)进行了新式的岩芯破碎型钻头的研究。
Diamond drill bits used in oil drilling have actually improved since the LX and Stratapax drill bits emerged. However, as a drill, there are still many problems, especially the cutting edge of the central part of the drill bit. The cutting edge (diamond or other cutting edge) in the center of the drill bit fails to cut the rock sufficiently due to the low cutting line speed and crushes the rock under the pressure. As a result, it is difficult to remove the rock debris and to drill Reduced efficiency. This is especially true when drilling in soft formations. This is the cause of the drill bit damage or early wear and tear. To solve these problems, Total CFP conducted a new type of core breaker research.