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● 镜面黑冰齿减少剪切力。
● 梳状金刚石层延缓切削齿磨损,提高自锐能力。
● 弧形冠部,刀翼式布齿,适用于中硬地层。
● 半圆形水道,有利于排除岩屑。
● 内外聚晶金刚石保径,有利于钻头稳定。
● 可根据用户要求,配合多种取芯工具。
● Arc crown profile,blade cutter setting.
● Natural diamond ID & OD gage,fluid coures set on ID gage to ensure a better cleaning and cooling effect upon cutters of the gages.
● Suitable for medium hard formations.It allows to be used in a wide variety of formations.
钻头参数 SPECIFICATIONS |
规格 BITS SIZE |
8 1/2″X |
切削齿规格 CUTTER SIZE |
13.44 |
规定长度 GAGE |
48 |
推荐钻井参数 RECOMMENDED OPERATING PARAMETERS |
排量 Hydraulic Flow Rate
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L/S |
22-25 |
gpm |
350-550 |
转速 Rotation Speed |
r/min |
60-500 |
钻压 Weight on Bit
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kN |
75-120 |
klbs |
15-25 |
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