The fishing bumper sub is a kind of mechanical downhole jarring tool with long working stroke . It can jar stuck pipe stem repeatedly to loose struckpoint to relase stuck pipe.
|
Type
Parameter |
ZSJ44B
|
ZYSJ46B
|
ZSJ56B
|
ZSJ63B |
ZSJ708B
|
ZSJ80B
|
|
O.D. (mm) |
114 |
121 |
146 |
159 |
178 |
203 |
|
I.D. (mm) |
38 |
38 |
51 |
51 |
70 |
70 |
|
Sealing pressure |
20 |
20 |
20 |
|
20 |
20 |
|
Max.Tensile load (KN) |
112 |
122 |
132 |
143 |
153 |
163 |
|
Stroke(mm) |
1000 |
1000 |
1200 |
1400 |
1400 |
1500 |
|
Threads API |
NC31 |
NC38 |
NC40 |
Nc50 |
NC50 |
65/8”REG |
|
Closed length |
2100 |
2100 |
2300 |
2600 |
2650 |
2740 |