ROSCHEN GROUP
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32 inch Tricone Roller Cone Bit for reverse circulation flushing drilling
Roschen produce a full range of tricone roller bits, bicone drill bit, Tricone rock bit. Tricone drill bits are available in new and used (re-tip and re-run) tungsten carbide insert and steel tooth, size from 3 3/8"(85.7mm) to 26"(660.4mm) for use in all formations,with any bearing/seal type, and a wide range of additional custom features.
Tricone drill bits included Steel Tooth (also referred to as milled tooth) bits and Tungsten Carbide Insert (TCI) bits, TCI bits are much more durable than Steel Tooth ones, but come with a higher cost to manufacture. Both these two groups of Tricone Bits are available with:
(1) Open Bearing or Sealed Bearing
(2) Roller Bearing or Friction Bearing (Journal Bearing)
(3) Gauge Protected or Non-Gauge Protected, etc
TCI Tricone bits 17 1/2" , 18", 20", 22", 24", 26", 30", 32" for reverse circulation, with opening in the center 100mm, IADC537 RC
Tricone drill bits which are widely used in mining, oil well, water well, thermal drilling.
| Roschen Tricone Drill Bits Technical parameter and aplication | |||
| IADC | WOB | RPM | Applicable Formations |
| (KN/mm Bit Dia.) | (r/min) | ||
| 114 | 0.27~0.70 | 200~80 | very soft with low compressive strength and high drillability,such as soft shale,clay and salt bed,etc |
| 115 | |||
| 124 | 0.25~0.70 | 200~80 | Soft with low compressive strength and high drillability,such as soft shale,clay and salt bed, soft limestoneetc |
| 125 | |||
| 134 | 0.25~0.70 | 200~80 | Soft to medium soft or soft with harder stringers, such as hard gypsolyte,soft limestone and sandstone etc. |
| 135 | |||
| 116 117 | 0.35~0.90 | 150~80 | very soft with low compressive strength and high drillability,such as soft shale,clay and salt bed,etc |
| 126 127 | 0.35~1.00 | 150~70 | soft with Low compressive strength and high drillability. Such as shale, clay, salt bed and soft limestone etc |
| 136 137 | 0.35~1.05 | 120~60 | Soft to medium soft with low compressive strength or soft with harder stringers,like hard gypsolyte,soft limestone,etc. |
| 216 217 | 0.50~1.20 | 90~50 | Medium hard with relatively higher compressive strength and hard stringers,such as hard shale,sandstone.etc |
| 100~50 | |||
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously | |||