| |
Drawworks. Solid Performance in Conventional
or AC Gear-Driven Models
Like every piece of drilling equipment LeTourneau Technologies™ Drilling Systems manufactures,
our drawworks are engineered for unmatched reliability,
high performance, and cost efficiency.
Whether the job calls for conventional chain-driven
drawworks, or our advanced AC gear-driven model, you'll
find the features, safety assurance, and low maintenance
you expect from LTI. And LTI offers the highest
hook load you'll find -- a 9000 hp input rating, and
static load capacity of 2.5 million pounds.
Conventional Chain-Driven Drawworks
LTI offers 3 models (see chart below); the LDW3000 (3000 input hp), the LDW3000 Heavy-Duty (3000 input hp), and the LDW4500 (4500
input hp). Hoisting power is provided by a two- or three-motor
drive system, which can either be variable-frequency
AC or SCR-controlled DC.
Plus, LTI chain-driven drawworks are equipped with
a robust disc braking system featuring hydraulically applied
service brake calipers as well as spring-actuated emergency
/ parking brake calipers for fail-safe operation. This
braking system offers superior performance versus conventional
band brakes.
All LTI chain-driven drawworks come mounted on oilfield-type
skids with provisions for crane lifting and easy tailboard
loading onto transport trucks or rig structures.
| Conventional
Chain-Driven Drawworks Performance Specifications |
| MODEL |
HOOK LOAD (KIPS) |
HORSEPOWER |
NO. OF
LINES |
DRILLING
DEPTH
RANGE |
| LOW CLUTCH |
HIGH CLUTCH |
| LOW TRANSMISSION |
HIGH TRANSMISSION |
LOW TRANSMISSION |
HIGH TRANSMISSION |
| LDW3000* |
1000 |
730 |
360 |
260 |
3000 |
8 |
16,000
-
30,000' |
| 1210 |
880 |
435 |
315 |
10 |
| 1400 |
1000 |
505 |
365 |
12 |
| 1582 |
1140 |
570 |
413 |
14 |
LDW3000*
HEAVY DUTY |
1392 |
1008 |
447 |
323 |
3000 |
10 |
16,000
-
30,000' |
| 1609 |
1165 |
517 |
374 |
12 |
| 1814 |
1313 |
582 |
422 |
14 |
| 2000 |
1448 |
642 |
465 |
16 |
| LDW4500** |
1714 |
1035 |
568 |
343 |
4500 |
10 |
20,000
-
40,000' |
| 1989 |
1201 |
660 |
398 |
12 |
| 2220 |
1340 |
736 |
444 |
14 |
| 2455 |
1483 |
814 |
491 |
16 |
| * Hook loads based on second layer.
**Hook loads based on third
layer. |
AC Gear-Driven Drawworks
With 90% fewer parts than conventional chain-driven drawworks, LTI AC Gear-Driven Drawworks represents the leading
edge of technology. These advanced machines offer new standards of drilling
performance, safety, and reliability, combining
cost and operational efficiency with a smaller
footprint, less weight, reduced noise, and smoother operation.
Offered in a choice of 550K, 750K, 1,000K, 1,500K,
and 2,000K hook load models (see chart below), these
advanced systems feature a LTI-engineered triple braking
system for increased safety, including a park and emergency
brake, auxiliary brake, and regenerative system.
Higher operational speeds are achieved in all models
through the exclusive use of Variable Frequency Drive
(VFD) AC motors.
With fewer utilities required for installation and
fewer spare parts, the LTI AC Gear-Driven Drawworks
is a solid choice for enhanced performance, safety,
and unmatched reliability.
| AC
Gear-Driven Drawworks Performance Specifications |
| Drawworks Model |
Hook
Load (kips) |
Horsepower |
No.
of Lines |
Drum Size (inches) |
Aux. Brake Option |
| LDW550K |
550 |
1,500 |
10 |
25
x 49 |
Air
or Electric |
| 455 |
8 |
| LDW750K |
750 |
2,300 |
10 |
27
x 56-1/4 |
Air
or Electric |
| 575 |
8 |
| LDW1000K |
1,000 |
3,000 |
12 |
30
x 56-1/4 |
Air
or Electric |
| 860 |
10 |
| 715 |
8 |
| LDW1500K |
1,500 |
4,500 |
14 |
36
x 72 |
Air
or Electric |
| 1,330 |
12 |
| 1,150 |
10 |
| LDW2000K |
2,000 |
6,000 |
16 |
42
x 82 |
Air
or Electric |
| 1,810 |
14 |
| 1,610 |
12 |
|
|
