Bauer BG 25 - Drilling Specifications; Kelly Equipment

TECHNICAL SPECIFICATIONS
BG 25 / 2011 / 2254_BG25_en_0000498763_V01
3 - 6
3.4 DRILLING SPECIFICATIONS
3.4.1 Kelly equipment
T
B
W
L3
H
d
L2
H
w
A
L1
BS756510.wmf
Notice: Drilling depth specifications are based on min. operating radius of mast.
With max. operating radius the drilling depth increases by 0.456 m.
A: Length of retracted Kelly
A max.: Max lifted length of Kelly
B / B1: Length of extended Kelly unlocked / locked
T: Max. possible drilling depth
Hw: Maximum height to drilling tool
Hd: Maximum height to casing drive adapter
L1: Highest possible position of Kelly lifting eye
L2: Highest possible position of Kelly driver upper edge
L3: Lowest possible position of Kelly driver upper edge
W: Length of drilling tool: 2.20 m
CO: BAUER Casing Oscillator
Drilling depth / Kelly specifications
Kelly type
A [m]
B [m]
B1 [m]
H
w
[m]
locked
Kelly
unlocked
Kelly
Weight
[t]
without
CO
T [m]
with
CO
T [m]
without
CO
T [m]
with
CO
T [m]
BK 25/394/4/56
16.71
59.47
59.12
1.85
57.31
55.81
57.66
56.16
10.05
BK 25/394/4/40
12.71
43.47
43.12
5.85
41.31
39.81
41.66
40.16
7,70
Dimensions [mm]
L1
20767
L2
12131
L3
4011
A max.
16666
Hd
8452
Bore diameter [mm]
uncased
1700
cased
1400
Casing length
without CO
Hw  0.5 m
with CO
Hw  1.5 m