Stabilizers, Repair of Stabilizers

The task of the stabilizers is centering the rotary bits and preventing the excessive side deflection of the drilling string. As a result of this, the load on the bit and the drill pipes is decreased and therefore the service life of the bit is longer. The stabilizer is a pipe with thick wall with thickening and of a construction with spiral grooves. The spiral surface of the thickening is manufactured by welding on tips.

Types:
- Bit stabilizer type A
- Drill collar stabilizer type B

Material of the stabilizers:
SAE 4140 - 4145 H