Type: Drill Bit
Machine type: Drilling Tool
Material: Alloy steel + diamond particles
Processing type: Forging
Use: Ore Mining
Drill bit is one of the important tools for oil drilling. Whether the drill ADAPTS to the properties of rock and its quality plays a very important role in the selection of drilling technology, especially on drilling quality, drilling speed and drilling cost. PDC drill bit is a rock breaking tool widely used in today 's oil and gas exploration and development industry. It effectively improves the mechanical drilling tool and shortens the drilling cycle.
• Oil, Gas and Coal Mining : Drill bits play an important role in the extraction of oil, gas and coal mines. Its high hardness, wear resistance and compression resistance make the diamond drill bit efficient in crushing the rock at the bottom of the hole, which is suitable for drilling all kinds of hard rocks
• Geological exploration: In the field of geological exploration, drill bits are used to obtain samples of underground rock formations, helping scientists and researchers understand the structure and composition of formations
• Tunnel construction: In tunnel construction, the drill bit is able to cope with all kinds of hard rock, ensuring the smooth progress of tunnel excavation
• Mining industry: In the mining field, drill bits are used to mine iron ore, gold ore and other metal deposits, which have the characteristics of high efficiency and wear resistance
• Construction industry: In the construction industry, drill bits are used for drilling and cutting, suitable for hard materials such as concrete and rock, and are widely used in foundation engineering and structural reinforcement
| Formtion Hardness | Rock Stratum | Abrasiveness | Bit MatrixSeries | ||||||||||
| HRC55 | HRC 45-50 |
HRC40-45 | HRC35-40 | HRC30-35 | HRC 25-30 |
HRC 20-25 |
HRC 15-20 |
HRC 10-15 |
HRC 5-10 |
HRC 3-5 |
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| F0 | F1 | F2 | F4 | F6 | F8 | F10 | F12 | F14 | F16 | F18 | |||
| Soft | Clay,Shale,Very Soft Sandstone,Peat,Argllaceous Rock,Volcanic Rock,Tuff,etc | High | ● | ● | ● | ● | |||||||
| Medium | ● | ● | ● | ● | |||||||||
| Low | ● | ● | ● | ||||||||||
| Medium Hard | Lumestone,Rhyolite,Andesite,Marble,Hard Sandstone,Limonite,Muscovite,Schist,etc | High | ● | ● | ● | ● | ● | ● | |||||
| Medium | ● | ● | ● | ● | |||||||||
| Low | ● | ● | ● | ● | |||||||||
| Hard | Basalt,Gneiss,Granodiorite,Hornstone,Pegmatite Diabase,etc | High | ● | ● | ● | ● | ● | ||||||
| Medium | ● | ● | ● | ● | |||||||||
| Low | ● | ● | ● | ● | |||||||||
| Super Hard | Hard Granite,Breccia,Quartzite,Hard Slate,Rhyolite,etc. | High | ● | ● | ● | ● | |||||||
| Medium | ● | ● | ● | ● | |||||||||
| Low | ● | ● | ● | ||||||||||
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Reference for Selection of Diamond Bit Face |
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Shape of Diamond Bit Face |
Characteristics and Adaptability |
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Semicircle |
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Suitable for hard rock.Increasing the amount of diamondon the bit face,he driling efficiency is high. |
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Circular Arc |
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Suitable for medium-hard rock.The diamondon the bit face is well distributed and can adapt to a little broken and loose |
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Flat |
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For impregnated diamond bits.Suitable for all kinds of hardnes and abrasive strata. |
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Bottom Discharge |
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Suitable for sedmentary rocks,metamorphic rocks and other strata with more powdered ore.High coring rate can be achieved |
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Stepped |
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Suitable for medium-hard rock,broken rock,broken and complete staggered rock.Hole unloading can be prevented. |
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Coned |
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Suitable for soft to medium-hard rock formations.Faster drilling speed and higher strength. |
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Serrated |
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Suitable for hard dense rock formations.The drillingefficiency is high. |
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Staggered Concentric |
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Suitable for hard dense rock formations.High drilling speed at low pressure. |
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Gear Shape |
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Suitable for hard dense rock formations.The drillingefficiency is high. |
| Model | Drill Bit | Drill pipe | Drilling depth | ||
| O.D.(mm) | I.D.(mm) | OD | ID | ||
| mm | mm | mm | mm | m | |
| BTW | φ59.56/42.35 | φ59.95 | φ56.3 | Φ48 | 1000 |
| NTW | φ75.31/Φ56.35 | φ75.7 | φ73.3 | φ64 | 900 |
| HTW | φ95.57/71.35 | φ96.09 | φ91.3 | Φ81 | 800 |
| AQ | φ47.63/Φ26.97 | φ48.01 | φ44.5 | φ34.9 | 1000 |
| BQ | φ59.56/φ36.4 | φ59.95 | φ55.6 | φ46 | 1200 |
| NQ | φ75.31/Φ47.6 | φ75.7 | φ69.9 | φ60.3 | 1800 |
| HQ | φ95.57/Φ63.5 | φ96.09 | 中88.9 | Φ77.8 | 1800 |
| PQ | Φ122.05/Φ85 | φ122.65 | φ114.3 | Φ103.2 | 1600 |
