Contact Platform Support
Help Center
Related Products
-
High Performance Overburden Drilling System for Water Well CasingNegotiableMOQ: 1 -
6\" DTH Bits Down The Hole Drilling ForMining Blast HoleDrillingUS$ 50 - 200MOQ: 1 Kilogram
-
114mm Thick Wall Steel Drill Pipes Exploration For Blast Hole, Water WellUS$ 50 - 100MOQ: 1 Unit
-
DHD 360 / COP 64 6 Inch DTH Hammer Down The Hole Drilling for Water WellUS$ 100 - 3000MOQ: 1 Unit
-
5 Inch - 10 Inch Overburden Drilling Systems Down The Hole Drilling for ConstructionUS$ 50.00 - 50.00MOQ: 1 Piece
Overburden Drill Bit overburden drilling system 70mm - 400mm OD
Details Description:
The Stratex Drill System
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 Drop Off Ring (DOR) 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 drills 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:
Low capital investment
High drilling performance
No rotation of the casing
Compatible with most drilling rigs
Virtually no casing stress
Casing is simultaneously lowered by the 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:
Blast holes
Water supply wells
Bridge and building foundations
Standard slant or horizontal drilling
Mining air holes
Environmental monitoring wells
Grouting operations
Seismic shot holes
Soil sample and geotechnical applications
Ground anomaly and tiebacks
Storage caverns and dam
Accessories Available with SDS:
Drop Off Ring (DOR)
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
|
Overburden Drill System Assembly of the Stratex System The Stratex Drilling Method is used with air rotary drilling rigs and most manufacturers\' downhole hammers. The drill rod is connected to the rig top drive using a changeover sub or swivel sub. The drill rod is then connected to the down-hole hammer by the same method. The chuck nut and split rings are removed to insert the guide device shank and secured by replacing the split rings and chuck nut. The reamer bit, in the closed position, is now inserted into the casing shoe. Since the percussion hammer is at the bottom of the hole, working directly above the drill bit, the force to pull down the casing tube is transferred by way of the casing shoe. The exhaust air from the drill redirects the loose cuttings up through the groves on the guide device, forcing them up between the drill rod and the casing wall out through the discharge head, which is attached to the casing tube. By using a discharge head, drilling is not only safer but also environmentally cleaner. Stratex can be used with foam or water to aid in cutting removal. Good Flushing Good Flushing is essential with any successful drilling operation or in using an overburden drilling system. The Stratex System provides air jets above and below the guide device, creating a vacuum across the face of the reamer bit, removing the cuttings with greater annular velocity. The gauge carbides along the side of the pilot and reamer bit act to crush the cuttings into finer particles, the majority of which are removed from the hole. The remaining cuttings are forced back into the walls of the cavity, leaving less material to be extracted from the hole. |
|
Advantages: Efficient removal of cuttings from above the guide device, which prevents the hammer from jamming and torque problems Removal of fine cuttings from around the bit system and casing creates less friction and achieves deeper depths and easier casing removal Reduction in losses due to circulation problems by increased vacuum in cutting remo |
Send Inquiry to This Supplier
You May Also Like
-
Mining Industry All Equipments and Products Exporting ServiceNegotiableMOQ: 1 Forty-Foot Container
-
Black Henna for Body Art Suppliers & ManufacturersNegotiableMOQ: 1
-
Bimini ClipsNegotiableMOQ: 1
-
Anti Icing Fluid For Engine Of AutomobileNegotiableMOQ: 1
-
CNC Machine Tool Spindle PowerNegotiableMOQ: 1 Piece
-
Human Hair,wig,hair Extension ToolNegotiableMOQ: 1
-
SMZY Best Electric Motorcycle DOTNegotiableMOQ: 1 Ton
-
Ladies\'\' Jacquard JacketNegotiableMOQ: 1
-
Veins MarbleNegotiableMOQ: 1 Piece
-
Precision MicromachiningNegotiableMOQ: 1
