| |
方钻杆是整个钻柱的驱动部分。方钻杆分为四方钻杆和六方钻杆两种。MS牌方钻杆采用API Spec7-1 规范及SY/T6509-2000 标准生产。
Kellys is driving section of wohole drill stem. Kelly is available with square kelly and hexagonal kelly. MS brand kelly are manufactured strictly from API Spec7-1 and SY/T6509-2000 standard.
技术规格及参数
| 规格 |
长度
in |
上部内螺纹接头 |
下部外螺纹接头 |
内径 |
驱动部分 |
| mm |
in |
螺纹类型(LH) |
外径 |
螺纹类型 |
外径 |
对边宽 |
四方对角宽 |
六方对角宽 |
| 标准 |
选用 |
标准 |
选用 |
| 63.5 |
2 1/2 |
12.19 |
6 5/8REG |
4 1/2REG |
196.8 |
146.0 |
NC26 |
85.7 |
31.8 |
63.5 |
83.3 |
|
| 76.2 |
3 |
12.19 |
6 5/8REG |
4 1/2REG |
196.8 |
146.0 |
NC31 |
104.8 |
44.4 |
76.2 |
100.0 |
85.7 |
| 88.9 |
3 1/2 |
12.19 |
6 5/8REG |
4 1/2REG |
196.8 |
146.0 |
NC38 |
120.6 |
57.2 |
88.9 |
115.1 |
100.8 |
| 108.0 |
4 1/4 |
12.9 |
6 5/8REG |
4 1/2REG |
196.8 |
146.0 |
NC46 |
158.8 |
71.4 |
108.0 |
141.3 |
122.2 |
| 6 5/8REG |
4 1/2REG |
196.8 |
146.0 |
NC50 |
161.9 |
71.4 |
108.0 |
141.3 |
122.2 |
| 133.4 |
5 1/4 |
12.9 |
6 5/8REG |
|
196.8 |
|
5 1/2FH |
177.8 |
82.6 |
133.3 |
175.4 |
151.6 |
| 6 5/8REG |
|
196.8 |
|
NC56 |
177.8 |
82.6 |
133.3 |
175.4 |
151.6 |
|
|
