Page 37 - Diamond Products Catalog

IMPREGNATED BIT DRILLING GUIDELINES
Size
Speed
Indicative Bit Weight Range
Fluid Flow Range
(rpm)
Low (lbf)
Low (kN)
High (lbf)
High (kN)
Low (gpm)
Low (lpm)
High (gpm)
High (lpm)
QTM Wireline
BQ
1,200
2,000
9
5,500
24
6
20
8
30
NQ
950
3,000
13
8,500
37
10
35
13
50
HQ
750
4,500
20
12,500
56
14
50
20
70
PQ
600
7,000
31
19,000
84
20
80
30
100
QTM Thin Kerf
AQTK
1,500
1,200
5
3,000
13
3
12
5
20
BQTK
1,200
1,500
8
5,000
20
5
20
7
26
NQTK *
950
2,500
12
8,000
34
9
32
12
44
QTM Triple Tube
NQ3, NQTT
950
3,000
14
8,000
36
10
35
13
50
HQ3, HQTT
750
5,000
20
12,000
54
15
55
20
75
PQ3, PQTT
600
7,000
32
18,000
80
22
80
28
105
Conventional
LTK 48
1,500
1,000
4
2,500
10
3
9
4
15
LTK 60
1,200
1,500
6
3,500
16
4
15
6
23
All dimensions, weights, and volumes shown are nominal *NQTK also known as NQ2
Q is a trademark of Boart Longyear. © Copyright 2014 Boart Longyear. All rights reserved.
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