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Introduction
Steel tooth tricone bit: it is suitable for very soft formation with high drilling efficiency and excellent diameter protection ability.According to different formation hardness and drill ability, the steel tooth bit can machine different height and width teeth on the the outer line of the cone, and weld a layer of WC wear-resistant material on the surface of the teeth to enhance wear resistance.
Features
Bearing Structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head 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.
Gauge protection: more tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.
Nozzle：These nozzles are much sturdier and provide greater flow capacity and maximize fluid distribution to the cones.
Technology
1.Motor hardfacing: Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications
2.Seal and Lubrication: The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.
Specification
HENGJI BIT SPECIFICATION | |
Bit Size | 9 7/8''(250.8mm) |
IADC Code | 127 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 6 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 150~70 |
Weight on Bit(KN/MM) | 0.35~0.9 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,soft shale ,soft limestone,etc. |
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
Introduction
Steel tooth tricone bit: it is suitable for very soft formation with high drilling efficiency and excellent diameter protection ability.According to different formation hardness and drill ability, the steel tooth bit can machine different height and width teeth on the the outer line of the cone, and weld a layer of WC wear-resistant material on the surface of the teeth to enhance wear resistance.
Features
Bearing Structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head 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.
Gauge protection: more tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.
Nozzle：These nozzles are much sturdier and provide greater flow capacity and maximize fluid distribution to the cones.
Technology
1.Motor hardfacing: Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications
2.Seal and Lubrication: The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.
Specification
HENGJI BIT SPECIFICATION | |
Bit Size | 9 7/8''(250.8mm) |
IADC Code | 127 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 6 5/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 150~70 |
Weight on Bit(KN/MM) | 0.35~0.9 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,soft shale ,soft limestone,etc. |
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
