Tree Jacking System
Unity’s Tree Jacking System (TJS) is a compact technology engineered to deliver the safe, efficient and controlled removal of offshore Christmas Trees.
It’s ideally suited to decommissioning and intervention activities, enabling fully rigless, autonomous tree removal. It can eliminate or contain shock load, stress and recoil - critical when operating in confined spaces - and solves the problem of insufficient crane pulling capacity. The TJS is particularly effective in situations where high separation loads are required, eg. seized or corroded flanges, specialty connectors or degraded bolting, providing a safe and controlled solution.
At the heart of the system is a compact hydraulic jacking module mounted in a heavy-duty cradle, positioned above tree level. A fully adjustable telescopic connector is capable of accommodating a wide range of tree elevation variations across the wellbay. Through a spreader beam and the telescopic connector, the TJS applies up to 150 tonnes of controlled lifting force, enabling efficient and predictable separation even in high‑load scenarios.
Benefits
- Compact system for use in tight spaces
- Eliminates or contains shock load, stress and recoil - critical in confined spaces
- Autonomous system replaces the use of a rig, crane and derrick.
- Modular design for ease of transport & on-site assembly
- Fully adjustable height for any size of Christmas Tree
- Can be operated by a conventional 3,000 psi pressure control panel, allowing ease of integration with readily available/ existing equipment.
- Wireless, ATEX-Certified Load Cell with hand-held display improves personnel safety.
- Dual heavy duty hydraulic rams
- Spreader T-Bar & Extension Sub rigged up separately and lowered into Jacking Unit
- T-Bar constrained by safety retention rods
- Support Cradle supplied with safety guide clamps to attach to rig beams
- Tirfor eyes provided on Support Cradle and Jacking Module to facilitate skidding
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