异形接头
异形接头是套铣作业中连接钻柱与套铣管的专用接头。分普通异形接头和异形安全接头。
Abnormity Joint
Abnormity Joint is a specialized joint connecting drill string and washover pipe in the washover operation.
It is divided into plain abnormity joint and abnormity safety joint.
异形接头和异形安全接头技术参数
Specification of Plain Profiled Joint and profiled safety joint
|
型 号 Type |
上端外径 O.D. of Upper end(mm) |
上端螺纹 Upper end thread |
下 端 双 级 螺 纹 Lower end Two—stage thread |
|
YJT146 |
127 |
NC38 |
5 -3/4 扁梯形短齿扣FJWP |
|
YJT194 |
165 |
NC50 |
7 -5/8 扁梯形短齿扣FJWP |
|
YJT206 |
165 |
NC50 |
8 -1/8 扁梯形短齿扣FJWP |
|
YJT219 |
178 |
NC50 |
8 -5/8 扁梯形短齿扣FJWP |
|
YJT244 |
203 |
6 5/8 REG |
9 -5/8 扁梯形短齿扣FJWP |
|
YJT273 |
203 |
6 5/8 REG |
10 -3/4 扁梯形短齿扣FJWP |