DU系列转盘卡瓦由DU型、DUL型和SDU型三种型式的钻杆卡瓦组成,该卡瓦扣合范围广、重量轻,其中SDU型卡瓦背锥接触面大、强度高,耐磨性好。产品按API Spec 7K规范要求设计、制造。
技术参数 Technical Parameters
型号Mode |
卡瓦体尺寸Slip Body Size(in) |
|||||
4 1/2 |
5 1/2 |
7 |
||||
钻杆尺寸DP OD |
钻杆尺寸DP OD |
钻杆尺寸DP OD |
||||
in |
mm |
in |
mm |
in |
mm |
|
DU |
2 3/8 |
60.3 |
3 1/2 |
88.9 |
4 1/2 |
114.3 |
2 7/8 |
73 |
4 |
101.6 |
5 |
127 |
|
3 1/2 |
88.9 |
4 1/2 |
114.3 |
5 1/2 |
139.7 |
|
4 |
101.6 |
5 |
127 |
6 5/8 |
168.3 |
|
4 1/2 |
114.3 |
5 1/2 |
139.7 |
7 |
177.8 |
|
DUL |
2 3/8 |
60.3 |
3 1/2 |
88.9 |
4 1/2 |
114.3 |
2 7/8 |
73 |
4 |
101.6 |
5 |
127 |
|
3 1/2 |
88.9 |
4 1/2 |
114.3 |
5 1/2 |
139.7 |
|
4 |
101.6 |
5 |
127 |
6 5/8 |
168.3 |
|
4 1/2 |
114.3 |
5 1/2 |
139.7 |
7 |
177.8 |
|
SDU |
|
|
3 1/2 |
88.9 |
4 1/2 |
114.3 |
|
|
4 |
101.6 |
5 |
127 |
|
|
|
4 1/2 |
114.3 |
5 1/2 |
139.7 |
|
|
|
5 |
127 |
6 5/8 |
168.3 |
|
|
|
5 1/2 |
139.7 |
7 |
177.8 |