Product Sheet OnGauge Sealed-Bearing Roller Reamer
Reduces downhole torque that is typical with fixed-blade stabilizers.
Torque-reduction sealed-bearing roller reamer
Designed with a pressure compensated bullet seal and bearing assembly, the OnGauge torque-reduction sealed-bearing roller reamer reduces the downhole torque typically experienced using fixed-blade stabilizers. Torque reduction enables a more stable drilling environment, enabling extended runs in complex extended-reach wellbore geometries. Reducing downhole torque also improves weight transfer to the bit and minimizes stick/slip so that more energy is available at the bit to improve ROP and extend the operational life of the drill bit and MWD and LWD tools.
A wedge-style cutter retention system prevents lost cutter incidents, and a durable sealed-bearing assembly ensures high loads, temperatures, and rotary speeds to extend bearing life.
|Hole size, in||8 1/2||8 3/4||12 1/4||17 1/2|
|Tool length, in||87||87||111||116|
|Max. body diameter, in||7 24/25||7 24/25||11 71/100||15 1/2|
|Fishing neck diameter, in||6 3/4||6 3/4||8 1/4||9 1/2|
|Fishing neck length, in||28||28||39||39|
|Bore diameter, in||2 1/4||2 1/4||3||3|
|Annular flow area, in2||9.9||13.29||22.26||82.5|
|Max. recommended speed, rpm||150||150||150||150|
|Max. temperature, degF||300||300||300||300|
|Body weight, lbm||782||782||1,236||2,658|
|Recommended max. cutter revolutions, millions||10||10||10||10|