TECHNICAL DATA
BG 24 H / 2010
3 - 5
3.4
DRILLING SPECIFICATIONS
3.4.1
Kelly Equipment
B
T
W
A
L1
L3
L2
Hd
Hw
BJ608503.wmf
Note:
Information on drilling depths are based on minimum operating radius of
the mast.
At the maximum operating radius, the drilling depth increases by 0.002 m.
A:
Length of retracted kelly
A max.:
Max lifted length of kelly
B / B1:
Length of extended kelly unbolted / bolted
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: 1.6 m
CO:
BAUER Casing Oscillator
Drilling depth / Kelly data
Kelly type
A [m]
B [m]
B1 [m]
H
w
[mm]
Kelly
locked
Kelly
unlocked
Weight
[to]
withou
t
CO
T [m]
with
CO
T [m]
withou
t
CO
T [m]
with
CO
T [m]
BK28/419/4/36
12,33 38,74 38,58
6774
36,79
35,29
36,95
35,45
8,4
Dimensions [mm]
L1
19940
L2
12544
L3
3389
A max.
16400
Hd
8910
Bore diameter [mm]
uncased
1650
cased
1500
Casing tube length
without CO
Hw
− 0.6 m
with CO
Hw
− 1.5 m
