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俄罗斯研制成功一种新型取芯钻头。它的特种切削刃可以更好地形成岩芯 ,可最大限度接近井底的取芯器 ,降低岩芯损坏的可能性。这种新型取芯钻头的刮刀的几何外形可提高钻头在扩大取芯时的稳定性 ,其上安装的ＰＤＣ牙轮和可保护孔径表面ＧＧ超硬材料堆焊能提高钻头的耐磨性。取
Russia successfully developed a new type of coring bit. Its special cutting edges provide better core formation and maximum access to the corer at the bottom of the well, reducing the possibility of core damage. The geometry of this new coring bit scraper increases the stability of the bit as it expands. The PDC cone mounted on it and the GG superelastic material that protects the aperture surface improve the wear resistance of the bit. take