天然金刚石取心钻头是取心工业的主要支柱,而且实际上用来在每类地层中取心(尽管用回转式或 PDC 钻头在软至中硬地层中往往取心较快、较好)。在推广这些新型钻头的情况下,天然金刚石可能专供其它任何方法不易取心的那些较硬和研磨性较高的地层中取心之用。金刚石钻头结构。鉴于金刚石取心钻头置于可能重120000磅(54432公斤)钻具下端,而且迅速下入司钻往往不知道井底确实 Natural diamond coring bits are the mainstay of the coring industry and are actually used to coring in each type of formation (although rotary or PDC drills are often preferred for coring in soft to medium hard formations). In the context of the promotion of these new bits, natural diamonds may be dedicated to coring those harder and more abrasive formations that are harder to find by any other method. Diamond bit structure. In view of the diamond coring bit may weigh 120000 pounds (54432 kilograms) drill bottom, and quickly into the driller often do not know the bottom of the well indeed