| 钻铤 |
| 发布者：成都腾洋贸易有限公司 发布时间：2014-06-19 点击次数：556 |
 |
产品特点：
钻铤是用来给钻头提供钻压，使钻杆处于受拉状态，并以其较大的刚度扶正钻头保持井眼轨迹的重要工具。
技术参数：
|
钻铤编号
|
外径
|
内径
|
长度
|
台肩倒角直径
|
参考的弯曲强度比
|
|
mm
|
in
|
mm
|
in
|
mm
|
|
NC23-31
|
79.4
|
3 1/8
|
31.8
|
1 1/2
|
9150
|
76.2
|
2.57:1
|
|
NC26-35(2 3/8 IF)
|
88.9
|
3 1/2
|
38.1
|
1 1/2
|
9150
|
82.9
|
2.42:1
|
|
NC31-41(2 7/8 IF)
|
104.8
|
4 1/8
|
50.8
|
2
|
9150
|
100.4
|
2.43:1
|
|
NC35-47
|
120.6
|
4 3/4
|
50.8
|
2
|
9150
|
114.7
|
2.58:1
|
|
NC38-50(3 1/2 IF)
|
127
|
5
|
57.2
|
2 1/4
|
9150
|
121
|
2.38:1
|
|
NC44-60
|
152.4
|
6
|
57.2
|
2 1/4
|
9150&9450
|
144.5
|
2.49:1
|
|
NC44-60
|
152.4
|
6
|
71.4
|
2 13/16
|
9150&9450
|
144.5
|
2.84:1
|
|
NC44-62
|
158.8
|
6 1/4
|
57.2
|
2 1/4
|
9150&9450
|
149.2
|
2.91:1
|
|
NC46-62(4IF)
|
158.8
|
6 1/4
|
71.4
|
2 13/16
|
9150&9450
|
150
|
2.63:1
|
|
NC46-65(4IF)
|
165.1
|
6 1/2
|
57.2
|
2 1/4
|
9150&9450
|
154.8
|
2.76:1
|
|
NC46-65(4IF)
|
165.1
|
6 1/2
|
71.4
|
2 13/16
|
9150&9450
|
154.8
|
3.05:1
|
|
NC46-67(4IF)
|
171.4
|
6 3/4
|
57.2
|
2 1/4
|
9150&9450
|
159.5
|
3.18:1
|
|
NC50-67(4 1/2 IF)
|
171.4
|
6 3/4
|
71.4
|
2 13/16
|
9150&9450
|
159.5
|
2.37:1
|
|
NC50-70(4 1/2 IF)
|
177.8
|
7
|
57.2
|
2 1/4
|
9150&9450
|
164.7
|
2.54:1
|
|
NC50-70(4 1/2 IF)
|
177.8
|
7
|
71.4
|
2 13/16
|
9150&9450
|
164.7
|
2.73:1
|
|
NC50-72(4 1/2 IF)
|
184.2
|
7 1/4
|
71.4
|
2 13/16
|
9150&9450
|
169.5
|
3.12:1
|
|
NC56-77
|
196.8
|
7 3/4
|
71.4
|
2 13/16
|
9150&9450
|
185.3
|
2.70:1
|
|
NC56-80
|
203.2
|
8
|
71.4
|
2 13/16
|
9150&9450
|
190.1
|
3.02:1
|
|
6 5/8 REG
|
209.6
|
8 1/4
|
71.4
|
2 13/16
|
9150&9450
|
195.7
|
2.93:1
|
|
NC61-90
|
228.6
|
9
|
71.4
|
2 13/16
|
9150&9450
|
212.6
|
3.17:1
|
|
7 5/8 REG
|
241.3
|
9 1/2
|
76.2
|
3
|
9150&9450
|
223.8
|
2.81:1
|
|
NC70-97
|
247.6
|
9 3/4
|
76.2
|
3
|
9150&9450
|
232.8
|
2.57:1
|
|
NC70-100
|
254
|
10
|
76.2
|
3
|
9150&9450
|
237.3
|
2.81:1
|
|
8 5/8 REG
|
279.4
|
11
|
76.2
|
3
|
9150&9450
|
266.7
|
2.84:1
|
