Reliable Odex Drilling System , Eccentric Overburden Drilling Systems

eccentric casing systems

ODEX is an excellent option when unconsolidated formations are too dense or cobbly for Auger Drilling. ODEX is a down-hole air hammer system that is designed to advance casing during drilling. Once a desired depth is reached they eccentric bit can be retrieved leaving the casing in place for sampling or installations.

Overburden Casing Drilling System DTH Bit is very popular in international water well and ore drilling field.

Features

Hardening treatment of the part's surface

with longer operating life and excellent anti - wear properties.

Structural optimization

Strengthen the structural strength, easy to operate

Superior performance

Stable and reliable performance, high drilling speed

When the bore-hole is complete, the casing is retrieved to be used again.
Pros
Rapid removal of cuttings;
No use of drilling mud;
High penetration rate, especially in resistant rock formation (e.g. basalt);
Easy soil and groundwater sampling during drilling;
Possible to measure yield estimate at selected depth in the formation;

Advantage

ous in unconsolidated formations with a high risk of caving (this is probably the most important feature).

Prodrill produces the ODEX Eccentric Overburden Drilling System, starting with the ODEX90 to suit 114mm O. D. Casings. This two-piece system comprises the shank bit holder and the eccentric pilot bit that is secured in the bit holder by a double interlocking pin. This is easily removed to allow for bit are sharpening or replacement. Prodrill ODEX overburden drilling systems are widely used in a variety of applications from well drilling and mining to rock anchoring and site investigation.

Application Range:

It is suitable for drilling water wells, geothermal wells, short mircopiles, medium mini-type grouting hole of building, dam and harbour project.
1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly
2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in, allowing the drill bit assembly to be pulled up through the casing.
3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.

overburden drilling systems

casing drilling system

Reliable Odex Drilling System , Eccentric Overburden Drilling Systems Images