SHOE WITH FLOAT BACK VALVE AND ECCENTRIC FREE ROTATING PLASTIC GUIDE PLUG BITART TYPE 252
Shoe with eccentric plastic guide plug BITART TYPE 140
SHOE WITH ECCENTRIC FREE ROTATING PLASTIC GUIDE PLUG BITART TYPE 150
Salt-saturated mud with thermal stability up to 150ºC
Salt-saturated mud with thermal stability up to 130ºC
RTP (rock hardness reducer)
RR type Underreamers
RR type Underreamers 2
Roller-cone bits
Roller-cone bits design features