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HKX635-200牙轮钻头
适用型号:
产地:
湖南
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长沙黑金刚实业有限公司
主营产品:潜孔钻具、顶锤钻具、牙轮钻具
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详细参数
详情介绍
规格:77/8"(200mm) ModelType:77/8"(200mm)
IADC编码:635 IADC Code:635
适应地层
本产品适用于中等抗压强度和高可钻性的中软岩,如页岩、石灰岩、白云石夹层及煤矿等(岩石普氏硬度系数f=11左右)。
Applications
Application for drilling in medium soft formations with low compressive strength and high drillability, such as shale, soft limestone, soft dolomite and coal bed, etc.,(Protodikonov's Hardness Coefficient of Rock f=11).
产品参数 | Parameters | ||
IADC编码 | 635 | IADC CODE | 635 |
轴承结构 | 滚柱-滚珠-二道止推-滚柱-一道止推/密封,轴承面上镶有减磨合金。 | Bearing sfructure | Roller-Ball-Second Thrust-Roller-First Thrust/Sealing, abrasion-resistance carbide button insert on the bearing surface. |
循环方式 | 喷气式 | Circulation Type | Jet Air |
切削结构 | 内排齿:弹头齿 外排齿:球形齿 齿背齿:平头齿 |
Cutting Structure | Inner Rows: Ballistic Gage Rows: Spherical Gage Bevel Protection: Flat |
连接螺纹 | API 4 1/2”REG | Pin connection | API 4 1/2"REG |
喷嘴 | 直径18mm或20mm(3只)可拆下调换 | Nozzel | Ф18 or Ф20mm(3 pcs)Interchangeable |
钻头直径 | 200 mm | Metric Bit Diameter | 200mm |
钻头重量 | 34 KG | Product Weight | 34 KG |
牙掌保护 Bit Legs Protection |
掌背镶嵌硬质合金齿,掌背掌尖均堆焊耐磨合金。 | Bit Legs Protection Carbide alloy button insert on the legs'surface, back and top space of legs build up welding of abrasion-resistant alloy. | |
操作建议 Operating Suggestions |
钻压:23000-50000Lbs 转速:120-80rpm 排碴风压:0.2~0.4Mpa |
Weight on Bit:23000-50000 Lbs Rotary Speed:120-80 rpm Air Pack Pressure: 0.2-0.4 Mpa |
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