- Stratex drill system - Overview
configuration • advantages • applications • accessories

T h e   S t r a t e x   D r i l l i n g   M e t h o d  -  "THE ULTIMATE"
The Overburden Drilling Method that was Designed by Drillers for Drillers
Overburden material strikes when least expected. - Be prepared, use Stratex!

The PATENTED Stratex Drill System
  1. One piece shank and guide device manufactured from the highest quality material with stringent quality control.
  2. Air jets are used to prevent any malfunction of the opening and retraction of the reamer pilot bit operation and the clearing of cuttings above the reamer pilot bit system.
  3. Sealed bearing system for ease in rotating the eccentric bit outward or retracting it into the casing.
  4. Casing with shoe: Casing may be supplied with plain or threaded ends.
  5. Grooved bypass directly above the lock system to clear cuttings and ensure complete drilling face contact.
  6. Tapered shoulder on the reamer bit eliminates casing binding and assists in the retracting of the reamer bit into the casing.
  7. One piece reamer and pilot bit manufactured from the highest quality material with stringent quality control.
  8. Gauge protection carbides on heavy duty, one-piece pilot and reamer bit.
  9. Dome carbides on heavy duty pilot and reamer bit.

    The Stratex Drill System (SDS) is an overburden drilling system designed for conditions where a cased hole is required. Collapsing holes tend to make overburden drilling expensive with lost drilling equipment and down time.

    In cooperation with drillers and drilling contractors, the SDS was developed to overcome these problems. The patented eccentric design and the patent pending Centre drill bits enable the drill string and casing to be lowered in the hole simultaneously with a conventional hammer drilling system.

    The SDS eccentric designed bit rotates outward and the Centre has retractable wings to drill a larger diameter hole than the casing, avoiding cave-ins, wash-outs and other problems common in normal drilling operations in soft and gravel type strata or loose rock. Since 90% of the world's overburden drilling is in loose strata, potential utilization of the SDS is enormous.

    After reaching the designated depth, the SDS reamer-bit is retracted by reversing the direction of the rotation and by applying tension on the reamer-bit, which has a taper and will retract into the casing for easy removal of the entire drill-string. This leaves the casing in place for other applications or for removal at a later date.

    The SDS method is designed for use with flush joint threaded pipe or welded type casing, and provides a bit size for a wide variety of different casing wall thicknesses.    		  

    Advantages of SDS  [ top of page]

    • Low capital investment
    • High drilling performance
    • No rotation of the casing
    • Compatible with most drilling rigs
    • Virtually no casing stress
    • Casing is simultaneously lowered bythe guide device and to deeper depths than other methods allow.
    • Cost and on-site time reduced due to better penetration rates, easier bit changes and stable hole conditions
    • Smaller pilot bit for faster and better penetration.

    Applications  [ top of page]

    • Barrier hole for coring
    • Environmental monitoring wells
    • Grouting operations
    • Mining air holes
    • Seismic shot holes
    • Water supply wells
    • Soil sample and geotechnical applications
    • Ground anomaly and tiebacks
    • Blast holes
    • Bridge and building foundations
    • Storage caverns and dams
    • Telescopic drilling for adverse applications
    • Standard slant or horizontal drilling

    Accessories available with SDS  [ top of page]

    • D.0.R. Drop-off reamer bits
    • Drill pipe and subs
    • Threaded casings
    • Casing drive shoes
    • Hydraulic casing pullers
    • Stabilizers
    • Discharge heads
    • Casing wing-nuts
    • Shock subs
    • Drill bits
    • Fishing tools
    • Air swivels

     

 

 

H Y D U K E   E N E R G Y   S E R V I C E S   I N C .

 top of page

< print this page >