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HKX835-311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: 12 1/4”(311mm) ModelType:121/4(311mm)
IADC编码: 835 IADC Code :835
适应地层
本产品适用于高抗压强度、极硬和研磨性高的地层,如石灰岩、砂岩、白云石、燧石等(岩石普氏硬度系数f=18左右)。
Applications
Application for drilling in extremely hard formations with high compressive strength extremely hard and high abrasiveness, such as limestone, sandstone, dolomite, firestone, etc.,(Protodikonov's Hardness Coefficient of Rock f=18).
产品参数 | Parameters | ||
IADC编码 | 835 | IADC CODE | 835 |
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:球形齿 外排齿:球形齿 背齿:平头齿 |
Cutting Structure | Inner Rows: Spherical Gage Rows: Spherical Gage Bevel Protection: Flat |
连接螺纹 | API 6 5/8”REG | Pin connection | API 6 5/8”REG |
喷嘴 | 直径24mm或26mm(3只)可拆下调换 | Nozzel | Ф24 or Ф26mm(3 pcs)Interchangeable |
钻头直径 | 311mm | Metric Bit Diameter | 311mm |
钻头重量 | 105 KG | Product Weight | 105 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:60000-95000 Lbs 转速:80-50 rpm 排碴风压:0.2~0.4Mpa |
Weight on Bit:60000-95000 Lbs Rotary Speed:80-50 rpm Air Pack Pressure: 0.2-0.4 Mpa |
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