Slimline XFR Pulling tool
The WellEnTech Slimline eXternal Flow-Release (XFR) Pulling Tool is a device for locating, engaging and retrieving tools with standard external fishing necks where restrictions in the well bore prevent standard XFR access. The Grapple can be functioned either mechanically or hydraulically in order to engage the fish and a strong spring ensures the Grapple is fully supported when located on the fish. Flow through the tool and a pull load disengages the tool from the fish.
Description
Features
- Slimline design
- Flow activated
- Enclosed Spring
- Multi-function operation
- Fully adjustable activation pressure
- Easily redressed
- Interchangeable Grapples
Applications
- Standard fishing operations
- Fishing operations with well bore restrictions
- Jetting and pick up operations
Operation
To mechanically function the tool, an axial downward load (in excess of the spring force) enables the Grapple to automatically engage the fish. The Spring then pushes the Grapple back to the supported position and an applied axial load causes the Grapple to become supported by the Main Body. This over pull will verify engagement with the fish. To release, fluid flow through a Nozzle fitted to the nose of the stem creates an internal pressure which pumps the Grapple back to the de-supported position enabling the Grapple to be pulled free from the fish. The pressure at which activation occurs is adjusted by simply changing out the Nozzle orifice dia.
