Keyseat reamer is a specialized tool to destroy keyseat and
prevent being stuck.it is divided into sliding sleeve type and fixed type
.It is connected on the top of drill collar .
welding many carbide-cutting ridges on its sliding sleeve surface,
which can ream the keyseat effectively.
Specification of Keyway Reamer
|
Type
|
Bit Diameter
(in)
|
Drill Collar Diameter
(in)
|
Max External Diameter
(mm)
|
Waterhole Diameter
(mm)
|
Connection
|
OAL
(mm)
|
Max. Working Pressure
(Kn)
|
|
|
Upper Internal Thread
|
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
|