 |
537
HJ
1
TIANJIN
1000
T/T
available
API
well drilling
new
| Quantity: | |
|---|---|
Basical Specification
TRICONE BIT 12 1/4'' IADC 537
Design features:
Side circulation
Shirttail and leg leading edge hardfacing
Leg production with TCI inserts
OPERATING PARAMETERS:
WOB(KN/mm):0.45~1.0
RPM(r/min):120~50
Application Formation:soft to medium formation with low compressive strength ,such as medium soft shale,medium soft limestone,medium soft sandstone,etc.
STRUCTURE FEATURES
1. Journal bearing. Hardfaced head bearing surface.Inne hole of ocne is silve-plated.The load capacity and seizure resistance of the bearing is greatly improved.
2. O ring seal is mode of more wear resistant and high saturated buna-N with the increased seal section and precisely designed scaling flange in the cone sealing ares has increased the reliability of the seal.
3. All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and thi provides the bearing system with good assurance of lubrication.
4. High weat resistance and excellent cutting ability pf the insert bit are given full play bu using carbide compacts of high strength and high toughness in comnination with optimized compact numbers and rows, the exposure height and special shaped compacts. For steel tooth tricone, the tooth surface is hard taced with new type of wear resistant material and thus has extended working life of the cutting structure while still maintaining high ROP.
Technology
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.
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
Six-point Gauge Stability: The design delivers near six-point contact with the borehole wall for unequalled bit stability that protects the cutting structure from damaging lateral blows
Classification
Soft Formation TCI Tricone bits
Are used to drill low compressive srength ,very soft formations.Tci bit maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection.This cutting structure design,combined with maximum cone offset,results in high bit penetration rates. The deep intermesh of cutter rows prevents bit baling in sticky formation.
Medium formation tci tricone bits
Feature aggressive chisel tungsten carbide inserts on the heel rows and inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium harf formations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Medium hard formation tci tricone bit
Feature robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Hard formation tci tricone bits
Can be used to drill hard and abrasive formations. Wear-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical-shaped inserts are used in all rows to provide cutter durability and long life.
Basical Specification
TRICONE BIT 12 1/4'' IADC 537
Design features:
Side circulation
Shirttail and leg leading edge hardfacing
Leg production with TCI inserts
OPERATING PARAMETERS:
WOB(KN/mm):0.45~1.0
RPM(r/min):120~50
Application Formation:soft to medium formation with low compressive strength ,such as medium soft shale,medium soft limestone,medium soft sandstone,etc.
STRUCTURE FEATURES
1. Journal bearing. Hardfaced head bearing surface.Inne hole of ocne is silve-plated.The load capacity and seizure resistance of the bearing is greatly improved.
2. O ring seal is mode of more wear resistant and high saturated buna-N with the increased seal section and precisely designed scaling flange in the cone sealing ares has increased the reliability of the seal.
3. All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and thi provides the bearing system with good assurance of lubrication.
4. High weat resistance and excellent cutting ability pf the insert bit are given full play bu using carbide compacts of high strength and high toughness in comnination with optimized compact numbers and rows, the exposure height and special shaped compacts. For steel tooth tricone, the tooth surface is hard taced with new type of wear resistant material and thus has extended working life of the cutting structure while still maintaining high ROP.
Technology
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.
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
Six-point Gauge Stability: The design delivers near six-point contact with the borehole wall for unequalled bit stability that protects the cutting structure from damaging lateral blows
Classification
Soft Formation TCI Tricone bits
Are used to drill low compressive srength ,very soft formations.Tci bit maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection.This cutting structure design,combined with maximum cone offset,results in high bit penetration rates. The deep intermesh of cutter rows prevents bit baling in sticky formation.
Medium formation tci tricone bits
Feature aggressive chisel tungsten carbide inserts on the heel rows and inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium harf formations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Medium hard formation tci tricone bit
Feature robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-ring provides adequate sealing for bearing durability.
Hard formation tci tricone bits
Can be used to drill hard and abrasive formations. Wear-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical-shaped inserts are used in all rows to provide cutter durability and long life.
