Payment & Shipping Terms:
|Casing Tube OD(mm):||108-406mm||Casing Tube ID(mm):||93-388mm|
|Reamed Dia(mm):||118-440mm||Casing Shoe ID(mm):||86-364mm|
|Polit Bit Dia(mm):||77-340mm||Payment:||L/C, T/T, Western Union|
ring bit;Symmetric Overburden Drilling System;casing shoe;retainer ring;DHD340/SD4/QL40/M40
The tube shoe is a device used as a groove or nozzle. Its specific working principle is to drive the casing and ensure the casing to follow smoothly. It does not break during the drilling process; the tail is mainly fixed, and the driving front is guided. The drill bit, the eccentric sleeve, is broken and connected to the impactor.
In order to find out the conditions of underground rock formation, groundwater, oil, natural gas and mineral resources, drilling wells are used. Oil and natural gas mining is inseparable from drilling wells. Seamless steel pipes for oil drilling for geological drilling are the main equipment for drilling, mainly including core outer tubes, core inner tubes, casings and drill pipes. Because the drilling pipe is deep enough to work in a depth of several kilometers, the working conditions are extremely complicated, and the drill pipe is subjected to stress such as tension, pressure, bending, torsion and unbalanced impact load, and is also subject to mud and rock wear. Therefore, the pipe is required. Must have sufficient strength, hardness, wear resistance and impact toughness, and the steel pipes are delivered in a heat treated state.
|Casing Tube OD(mm)||Casing Tube ID(mm)||Reamed Dia(mm)||Casing Shoe ID(mm)||Polit bit Dia(mm)||Hammer Type|