Click image to view original image
Sinodrills ODEX/ Eccentrics Drilling System
The ODEX overburden drilling system utilizes an eccentric under reamer to cut a drilled hole ahead of the bottom of the casing.
The casing is then simultaneously advanced by a percussive force applied to either the top or bottom of the casing.
As the hole is advanced, the drill cuttings are normally removed by air and travel up the inside of the casing in the annular space between the casing ID and the drill rod OD.
The ODEX method is highly effective in overburden soils where boulders or gravel layers are present, or when layers of rock must be penetrated.
This method also subjects surficial and localized soils to some vibration.
ODEX/ Eccentrics drilling system size:
--ODEX 90 for 3" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
--ODEX 115 for 4" DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
--ODEX 140 for 5” DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
--ODEX 144 for 5” DTH hammer, including the specifications of Guide device, casing shoe,
reamer and pilot bits:
--ODEX 165 for 6” DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
--ODEX 190 for 6” DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
--ODEX 240 for 8” DTH hammer, including the specifications of Guide device, casing shoe, reamer and pilot bits:
