Casing Advance System
DKI’s Casing Advance Systems allow for the simultaneous advancement of casing as big as 24″ in diameter, while drilling through fractured rock with a conventional down-the-hole air hammer. Depending on the drilling application, DKI customizes its casing advance system for either permanently left in the hole casing or retrieved (pulled-out) casing. Additional customization options are available based on the specifics of the drilling project, the actual casing and DTH hammer used, and the ground formation and conditions.
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WING KING SYSTEM
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- FOUNDATION CONSTRUCTION
- SITE INVESTIGATION
Concentric-Type Casing Advance Systems:
The DKI Concentric-Type Casing Advance System features a simple, yet robust and proven, design comprised of a Pilot Bit, a Casing Shoe and a Heavy-Duty Ring Bit. The pilot bit securely locks into the ring bit via special locking lugs to form the robust oversized-looking face of a conventional hammer bit – loaded with premium grade of carbide buttons.
The unique locking mechanism also allows for direct transfer of energy from the hammer to the drilling surface of the ring bit and the pilot bit, which in turn ensures a superior penetration rate. The casing pipe is easily welded to the casing shoe, which threads into the ring bit to sit unrestricted on its shoulder, thus, preventing the casing pipe from rotating during the drilling operation and securing it at the same time.
- DKI Standard Casing Advance System
- DKI Pass-Thru Casing Advance System
DKI Standard Casing Advance System
Key Features
- The most efficient way of carrying casing Down-The-Hole
- Made of premium U.S. steel for strength & durability
- Innovative, simple, yet proven design
- Available for most Hammer Shanks
- Superior technology for outstanding performance
| Casing Size | Casing Diameter | Ring Bit Diameter (in) | Hammer Shanks | ||
| OD | ID | OD | ID | ||
|
4 in mm |
4.50 114.3 |
4.03 102.4 |
4.875 123.8 |
2.250 57.15 |
IR3.5, COP 34, COP32, 3015, MACH 30/33 |
|
5 in mm |
5.56 141.2 |
5.05 128.3 |
5.935 150.8 |
3.135 79.6 |
QL4, IR340, SD4, M04. M40, MACH 44 T040 |
|
6 in mm |
6.63 168.4 |
6.07 154.2 |
7.016 178.2 |
4.125 104.8 |
QL5, IR350, SD5, M50, MACH 50 |
|
8 in mm |
8.63 219.2 |
7.98 202.7 |
9.015 229 |
5.925 150.5 |
QL6, IR360, SD6, M60, MACH 60 |
|
10 in mm |
10.75 273 |
10.02 254.5 |
11.250 285.8 |
8.250 209.6 |
QL8, IR380, SD8, M80, T090, MACH 80 |
|
12 in mm |
12.75 323.9 |
11.94 303.3 |
13.500 343.9 |
10.050 255.3 |
QL8, IR380, SD8, SD10, N100 |
|
14 in mm |
14.00 355.6 |
13.13 333.5 |
14.500 368.3 |
11.300 287 |
SD10, N100, QL120, IR112, SD12, N120, N125 |
|
16 in mm |
16.00 406.4 |
15.00 381 |
16.750 425.5 |
13.500 343.9 |
QL120, IR112, SD12, N120, N125 |
|
18 in mm |
18.00 457.2 |
16.88 428.8 |
18.750 476.3 |
15.500 393.7 |
QL120, IR112, SD12, N120, N125 |
|
20 in mm |
20.00 508 |
18.81 477.8 |
20.750 527 |
17.300 439.4 |
QL120, IR112, SD12, N120, N125, IR112S, SD15, N180, SD18, QL200 |
|
24 in mm |
24.00 610 |
22.63 574.8 |
24.750 628.7 |
21.300 541 |
SD18, N180, QL200, QL200S |
Above info per Schedule 40 drill pipe. Shown are the standard sizes. The Pilot Bit, Ring Bit & Casing Shoe assembly can be customized to customers specifications.
DKI Pass-Thru Casing Advance System
Key Features
- The most efficient way of carrying casing Down-The-Hole
- Made of premium U.S. steel for strength & durability
- Innovative, simple, yet proven design
- Available for most hammer shanks
- Superior technology for outstanding performance
Casing Size | Casing Diameter | Ring Bit Diameter (in) | Hammer Shanks | ||
OD | ID | OD | ID | ||
4 in mm | 4.50 114.3 | 4.03 102.4 | 4.875 123.8 | 2.250 57.15 | IR3.5, COP 34, COP32, 3015, MACH 30/33 |
5 in mm | 5.56 141.2 | 5.05 128.3 | 5.935 150.8 | 3.135 79.6 | QL4, IR340, SD4, M04, M40, MACH44, T 040 |
6 in mm | 6.63 168.4 | 6.07 154.2 | 7.016 178.2 | 4.125 104.8 | QL5, IR350R, SD5, M50, MACH50 |
8 in mm | 8.63 219.2 | 7.98 202.7 | 9.015 229 | 5.925 150.5 | QL6, IR360, SD6, M60, MACH60 |
10 in mm | 10.75 273 | 10.02 254.5 | 11.250 285.8 | 8.250 209.6 | QL8, IR380, SD8, M80, T090, MACH80 |
12 in mm | 12.75 323.9 | 11.94 303.3 | 13.500 342.9 | 10.050 255.3 | QL8, IR380, SD8, SD10, N100 |
Above info per Schedule 40 Drill pipe. Shown are the standard sizes. The Pilot Bit, Ring Bit & Casing Shoe assembly can be customized to customers specifications.
