Mechanical Spring Jar-Type 1
The Spring Jar, is a telescoping upstroke jar that should be run in conjunction with wireline stem installed immediately above. The Spring Jar can be adjusted on or off the toolstring at surface to a predetermined release force,therefore offering the operator a controlled impact force at the tool during heavy-duty wireline operations.The Spring Jar operation has been designed using the minimum of working parts,which offers the operator a fast and simple redress should it become necessary.By utilizing the Calibration Tool the Jar values can be varied to suit operating conditions.
|
Tools O.D. |
Fishneck O.D. |
Connection Type |
Stroke |
Working Range |
|
1.250＂ |
1.187＂ |
15/16＂-10UN |
7.9＂ |
300-1000 lbf |
|
1.500＂ |
1.375＂ |
15/16＂-10UN |
10.5＂ |
300-1100 lbf |
|
1.875＂ |
1.750＂ |
1 1/16＂-10UN |
12.0＂ |
400-3000 lbf |
|
2.125＂ |
1.750＂ |
1 1/16＂-10UN |
12.0＂ |
400-3000 lbf |
|
2.500＂ |
2.313＂ |
1 9/16＂-10UN |
15.0＂ |
1000-7000 lbf |