OVERBURDEN DRILLING SYSTEMS
TRB SYSTEMS
OVERBURDEN DRILLING SYSTEMS
OVERBURDEN DRILLING SYSTEMS
TRB SYSTEMS
TRB overburden drilling systems are designed for economic cost of drilling in simultaneous casing advancement.
The wings are retracted by reverse rotation.
TREX SYSTEMS
TREX overburden drilling systems are designed for wings to be retracted when bit is pulled up.
TDEX SYSTEMS
TDEX overburden drilling systems are designed for small size piling from 114mm to 406mm.
TDS SYSTEMS
TDS overburden drilling systems are designed to use ring bit which is not connected to casing shoe.
Special profile DTH Bit passes through enough large inner diameter of ring bit.
TDN SYSTEMS
TDN overburden drilling systems are designed to use ring bit which is integrated to casing shoe.
This ring bit set is retrieved for multi use.
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