Quick Details
- Processing Time:15days
- Port:shanghai
- Supply Ability: 100 Sets Per Month
- Brand Name:-
Non magnetic drill collar
Made of AISI4145H alloy steel, drill collar mainly used between the dill pipe and drill head and connected by conversion connector so that they can provide the pressure and weighting
to dill head ,in order to make the dill head to keep right trace .
If order of inquiry please offer: Non magnetic drill collar
·outer diameter of dill collar
·handling features
·length of drill collar
·stress relief features
·drill collar bore
·connection type
Standard size, inner diameter and thread for drill collar
No.
Outer diameter
Inner diameter
Length
mm
Should chamfering diameter
Bending
strength
mm
in
mm
in
NC23-31
79.4
3 1/8
31.8
1 1/4
9150
76.2
2.57:1
NC26-35
88.9
3 1/2
38.1
1 1/2
9150
82.9
2.421
NC31-41
104.8
4 1/8
50.8
2
91509450
100.4
2.43:1
NC35-47
120.7
4 3/4
50.8
2
91509450
114.7
2.58:1
NC38-50
127.0
5
57.2
2 1/4
91509450
121.0
2.38:1
NC44-60
152.4
6
57.2
2 1/4
91509450
144.5
2.491
NC44-60
152.4
6
71.4
2 13/16
91509450
144.5
2.84:1
NC44-62
158.8
6 1/4
57.2
2 1/4
91509450
149.2
2.91:1
NC46-62
158.8
6 1/4
71.4
2 13/16
91509450
150.0
2.63:1
NC46-65
165.1
6 1/2
57.2
2 1/4
91509450
154.8
2.76:1
NC46-65
165.1
6 1/2
71.4
2 13/16
91509450
154.8
3.05:1
NC46-67
171.4
6 3/4
57.2
2 1/4
91509450
159.5
3.18:1
NC50-67
171.4
6 3/4
71.4
2 13/16
91509450
159.5
2.37:1
NC50-70
177.8
7
57.2
2 1/4
91509450
164.7
2.54:1
NC50-70
177.8
7
71.4
2 13/16
91509450
164.7
2.73:1
NC50-72
184.2
7 1/4
71.4
2 13/16
91509450
169.5
3.12:1
NC56-77
196.8
7 3/4
71.4
2 13/16
91509450
185.3
2.70:1
NC56-80
203.2
8
71.4
2 13/16
91509450
190.1
3.02:1
6 5/8
REG
209.6
8 1/4
71.4
2 13/16
91509450
195.7
2.93:1
NC61-90
228.6
9
71.4
2 13/16
91509450
212.7
3.17:1
7 5/8
REG
241.3
9 1/2
76.2
3
91509450
223.8
2.81:1
NC70-97
247.6
9 3/4
76.2
3
91509450
232.6
2.57:1
NC70-100
254.0
10
76.2
3
91509450
237.3
2.81:1
8 5/8
REG
279.4
11
76.2
3
91509450
266.7
2.84:1
