键槽扩大器
键槽扩大器是***键槽，预防键槽卡钻的专用工具。分为滑套式键槽扩大器和固定式键槽扩大器，该工具连接于钻铤上方。其滑套表面堆焊有多条硬质合金切削棱带，能有效地扩大键槽部位的尺寸。
Keyway Reamer
Keyseat reamer is a specialized tool to destroy keyseat and prevent being is divided into sliding
sleeve type and fixed is connected on the top of drill collar .welding many carbide-cutting ridges on its sliding sleeve surface, which can ream the keyseat effectively.
键槽扩大器技术参数
Specification of Keyway Reamer
|
型号 Type |
钻头 直径 Bit Diameter (in) |
钻铤直径 Drill Collar Diameter (in) |
***大外径 Max External Diameter (mm) |
水眼直径 Water- hole Diameter (mm) |
螺 纹 代 号 Connection |
总长 OAL (mm) |
***大 工作压力 Max. Working Pressure (Kn) |
|
|
上端内螺纹 Upper nternal Thread |
下端外螺纹 Lower External Thread |
|||||||
|
JKQ152.4 |
6″ |
4 3/4″ |
136 |
38 |
NC38(3 1/2″IF) |
NC38(3 1/2″IF) |
2250 |
1400 |
|
JKQ152.4 |
6″ |
4 3/4″ |
136 |
38 |
NC38(3 1/2″IF) |
NC38(3 1/2″IF) |
2250 |
1400 |
|
JKQ215.9 |
8 1/2″ |
6 1/4″ |
170 |
57 |
NC50(4 1/2″IF) |
NC50(4 1/2″IF) |
2550 |
2300 |
|
JKQ215.9 |
8 1/2″ |
7″ |
187 |
70 |
NC50(4 1/2″IF) |
5 1/2″FH |
2550 |
2900 |
|
JKQ241.3 |
9 1/2″ |
7″ |
212 |
70 |
NC50(4 1/2″IF) |
5 1/2″FH |
2550 |
2900 |
|
JKQ241.3 |
9 1/2″ |
7″ |
212 |
70 |
5 1/2″FH |
6 5/8″REG |
2550 |
4900 |
|
JKQ311.15 |
12 1/2″ |
7″ |
245 |
70 |
5 1/2″FH |
6 5/8″REG |
2550 |
4900 |