 |
537
1
tianjin ,shanghai
water well,oil well,HDD,exploration,etc
100% New
HENGJI BIT SPECIFICATION | |
Bit Size | 21'' |
IADC Code | 537 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 7 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 120~50 |
Weight on Bit(KN/MM) | 0.45~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc. |
Tungsten Carbide Insert Bits:
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
Description of Tricone bit:
Cutting Structure :
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
Gauge Structure :
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure :
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
Seal and Lubrication :
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
HENGJI Popular models | ||
Bit size | IADC CODE | API Connection |
4 1/2’’(114.3mm) | 115 117 127 217 417 437 517 515 537 535 615 637 | 2 3/8 API REG |
4 3/4’’(120.7mm) | 115 117 127 217 417 437 517 515 537 535 637 | 2 7/8 API REG |
5 1/2’’(139.7mm) | 115 117 127 217 417 437 517 515 537 535 637 | 3 1/2 API REG |
5 7/8’’(149mm) | 115 117 127 217 417 437 517 515 537 535 637 635 | 3 1/2 API REG |
6’’(152mm) | 115 117 127 217 417 437 517 515 537 535 637 635 | 3 1/2 API REG |
6 1/2’’(165mm) | 115 117 127 217 417 437 517 515 537 535 617 627 | 3 1/2 API REG |
6 3/4’’(171mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 | 3 1/2 API REG |
7 1/2’’(190mm) | 115 117 127 217 417 437 517 515 537 535 617 615 627 637 737 | 4 1/2 API REG |
7 7/8’’(200mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 737 837 | 4 1/2 API REG |
8 1/2’’(215.9mm) | 115 117 127 217 417 437 517 515 537 617 627 637 737 837 | 4 1/2 API REG |
8 3/4’’(222.3mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 737 837 | 4 1/2 API REG |
9 5/8’’(244.5mm) | 115 117 127 217 417 437 517 537 617 627 637 635 737 837 | 6 5/8 API REG |
9 7/8’’(250.8mm) | 115 117 127 137 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
11 5/8’’(295.3mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
12 1/4’’(311.1mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
13 5/8’’(346.1mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
13 3/4’’(349mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
14 3/4’’(374.7mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
15 1/2’’(393.7mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
16’’(406.4mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
17 1/2’’(444.5mm) | 115 117 127 217 237 417 437 517 515 537 535 617 637 635 737 | 7 5/8 API REG |
20’’(508mm) | 115 117 127 217 237 437 517 515 537 535 637 635 | 7 5/8 API REG |
22’’(558.8mm) | 115 117 127 217 437 517 515 537 535 637 635 737 837 | 7 5/8 API REG |
24’’(509.6mm) | 115 117 127 217 437 517 515 537 535 637 635 737 837 | 7 5/8 API REG |
Regular Models
PDC 3 7/8''
PDC 4 5/8''
PDC 4 3/4''
PDC 5 1/2''
Tricone 5 7/8''537
Tricone 14 3/4'' 117
Tricone 12 1/4'' 537
Tricone 10 5/8'' 537
Tricone 20'' 637
Tricone 15 1/2'' 517
Tricone 14 3/4'' 637
Tricone 12 1/4'' 637
Tricone 12 1/4'' 437
Tricone 8 3/4'' 617
Tricone 12 1/4'' 537
Tricone 9 7/8'' 517
Drag bit 9 7/8''
Drag bit 15''
Drag bit 8 1/2''
Drag bit 7 1/2''
Tricone 22''517
Tricone 20'' 127
Tricone 17 1/2'' 217
Tricone 17 1/2'' 637
Hole opener 18''
Hole opener 14''
Hole opener 16''
Hole opener 12 1/4''
HENGJI BIT SPECIFICATION | |
Bit Size | 21'' |
IADC Code | 537 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 7 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 120~50 |
Weight on Bit(KN/MM) | 0.45~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft to medium formation with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,etc. |
Tungsten Carbide Insert Bits:
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
Description of Tricone bit:
Cutting Structure :
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
Gauge Structure :
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Bearing Structure :
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
Seal and Lubrication :
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
HENGJI Popular models | ||
Bit size | IADC CODE | API Connection |
4 1/2’’(114.3mm) | 115 117 127 217 417 437 517 515 537 535 615 637 | 2 3/8 API REG |
4 3/4’’(120.7mm) | 115 117 127 217 417 437 517 515 537 535 637 | 2 7/8 API REG |
5 1/2’’(139.7mm) | 115 117 127 217 417 437 517 515 537 535 637 | 3 1/2 API REG |
5 7/8’’(149mm) | 115 117 127 217 417 437 517 515 537 535 637 635 | 3 1/2 API REG |
6’’(152mm) | 115 117 127 217 417 437 517 515 537 535 637 635 | 3 1/2 API REG |
6 1/2’’(165mm) | 115 117 127 217 417 437 517 515 537 535 617 627 | 3 1/2 API REG |
6 3/4’’(171mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 | 3 1/2 API REG |
7 1/2’’(190mm) | 115 117 127 217 417 437 517 515 537 535 617 615 627 637 737 | 4 1/2 API REG |
7 7/8’’(200mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 737 837 | 4 1/2 API REG |
8 1/2’’(215.9mm) | 115 117 127 217 417 437 517 515 537 617 627 637 737 837 | 4 1/2 API REG |
8 3/4’’(222.3mm) | 115 117 127 217 417 437 517 515 537 535 617 627 637 737 837 | 4 1/2 API REG |
9 5/8’’(244.5mm) | 115 117 127 217 417 437 517 537 617 627 637 635 737 837 | 6 5/8 API REG |
9 7/8’’(250.8mm) | 115 117 127 137 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
11 5/8’’(295.3mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
12 1/4’’(311.1mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
13 5/8’’(346.1mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
13 3/4’’(349mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 6 5/8 API REG |
14 3/4’’(374.7mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
15 1/2’’(393.7mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
16’’(406.4mm) | 115 117 127 217 417 437 517 537 535 617 627 637 737 837 | 7 5/8 API REG |
17 1/2’’(444.5mm) | 115 117 127 217 237 417 437 517 515 537 535 617 637 635 737 | 7 5/8 API REG |
20’’(508mm) | 115 117 127 217 237 437 517 515 537 535 637 635 | 7 5/8 API REG |
22’’(558.8mm) | 115 117 127 217 437 517 515 537 535 637 635 737 837 | 7 5/8 API REG |
24’’(509.6mm) | 115 117 127 217 437 517 515 537 535 637 635 737 837 | 7 5/8 API REG |
Regular Models
PDC 3 7/8''
PDC 4 5/8''
PDC 4 3/4''
PDC 5 1/2''
Tricone 5 7/8''537
Tricone 14 3/4'' 117
Tricone 12 1/4'' 537
Tricone 10 5/8'' 537
Tricone 20'' 637
Tricone 15 1/2'' 517
Tricone 14 3/4'' 637
Tricone 12 1/4'' 637
Tricone 12 1/4'' 437
Tricone 8 3/4'' 617
Tricone 12 1/4'' 537
Tricone 9 7/8'' 517
Drag bit 9 7/8''
Drag bit 15''
Drag bit 8 1/2''
Drag bit 7 1/2''
Tricone 22''517
Tricone 20'' 127
Tricone 17 1/2'' 217
Tricone 17 1/2'' 637
Hole opener 18''
Hole opener 14''
Hole opener 16''
Hole opener 12 1/4''
