Purpose
The JUS Pulling tool is used to employ external fishnecks on subsurface devices inside the wellbore. These pulling tools have cores of medium lengths. Most of these cores are threaded in order to receive probes, prongs or shanks.
Description
BT JUS’s are made up of 7 (*9) components:
1. Fishneck 2. Core 3. Core Spring 4. Skirt 5. Dog Spring 6. Dog 7. Pawls 8. Shear Pin Sub
*9. Shear Pin Cover**1.25” / 1.375”
Operation
Used when there is a need to jar down to shear off of a subsurface tool and/or fish when a jar up tool is not desired. The core may be easily changed in the field to allow for a deeper or shallower reach depending on application. The BT JUS pulling tool is able to be turned into a BT JDC by simply changing the fishneck and adding a core cap.
Precautions
Ensure the proper core is installed so as the tool can properly be sheared, the improper core may result in the inability to release the subsurface tool and/or fish.
Care should be taken to inspect the dogs, skirt, and fishneck for damage such as metal fatigue, cracking , or deformity of the metal.
