Model JKQ key seat reamer is a downhole tool which is designed to destroy and finally eliminate the key seat formed on the borehole wall.It is connected above the drill collar, At its sliding sleeve surface,many carbide-cutting ridges are built-up by welding, which can ream the key seat effectively.
Technical parameters and specifications
| Type |
O.D.
(mm) |
I.D.
(mm) |
Connection
API
|
O.D. of
carbide blade(mm) |
Stroke of
sliding sleeve(mm) |
| JKQ140 |
121 |
38 |
NC38 |
140 |
251 |
| JKQ187 |
165 |
57 |
NC50 |
187 |
300 |
| JKQ212 |
465 |
57 |
NC50 |
212 |
360 |
| JKQ212 |
178 |
57 |
5 1/2FH |
212 |
360 |
| JKQ308 |
203 |
71 |
6 5/8REG |
308 |
400 | |
