Drilling Junk Sub is a specialized tool for catching clastic and small objects.
such as hard alloy teeth,bit bear,etc.
It has important meaning for maintaining cleaning of downhole,extending service life
of using bit,and reducing and proventing bit from damaging accidentally.
Specification of Drilling Junk Sub
|
Type
|
O.D.
(mm)
|
I.D.
(mm)
|
Connection
API
|
Suitable Well
Diameter(mm)
|
Type
|
O.D.
(mm)
|
I.D.
(mm)
|
Connection
API
|
Suitable Well
Diameter(mm)
|
|
LB94
|
94
|
19
|
2 7/8″REG
|
108.0-118.1
|
LB197
|
197
|
70
|
5 1/2″REG
|
235.0-279.4
|
|
LB102
|
102
|
32
|
2 7/8″REG
|
117.5-123.8
|
LB219
|
219
|
70
|
6 5/8″REG
|
244.5-288.9
|
|
LB114
|
114
|
38
|
3 1/2″REG
|
130.2-149.2
|
LB229
|
229
|
70
|
6 5/8″REG
|
254.0-304.8
|
|
LB127
|
127
|
38
|
3 1/2″REG
|
152.4-161.9
|
LB245
|
245
|
70
|
6 5/8″REG
|
292.1-330.2
|
|
LB140
|
140
|
38
|
3 1/2″REG
|
165.1-190.5
|
LB280
|
280
|
89
|
7 5/8″REG
|
330.2-374.6
|
|
LB168
|
168
|
57
|
4 1/2″REG
|
193.7-215.9
|
LB311
|
311
|
89
|
7 5/8″REG
|
327-374.6
|
|
LB178
|
178
|
57
|
4 1/2″REG
|
219.0-244.5
|
LB327
|
327
|
102
|
7 5/8″REG
|
374.5-444.5
|
|
LB190
|
190
|
57
|
4 1/2″REG
|
228.9-273.0
|
LB340
|
340
|
102
|
7 5/8″REG
|
386.7-457.2
|