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3.4
DRILLING SPECIFICATIONS
3.4.1
Kelly Equipment
L3
Drilling depth / Kelly data
Kelly type
B
T
BK28/419/4/36
W
BJ608503.wmf
BG 24 H / 2010
TECHNICAL DATA
L1
A
L2
H d
H w
A [m]
B [m]
B1 [m]
12,33
38,74
38,58
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
Dimensions [mm]
L1
L2
L3
A max.
Hd
Bore diameter [mm]
uncased
cased
Casing tube length
without CO
with CO
Kelly
locked
withou
with
t
CO
CO
T [m]
H
[mm]
w
T [m]
6774
36,79
35,29
19940
12544
3389
16400
8910
1650
1500
Hw − 0.6 m
Hw − 1.5 m
Kelly
unlocked
withou
with
t
CO
Weight
CO
T [m]
[to]
T [m]
36,95
35,45
8,4
3 - 5
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