High performance abrasive water jet subsea severance system for removal of subsea wellheads, piles & platform conductors
The AXE severance system is a high pressure water jet cutting system designed for the environmentally friendly removal of subsea wellheads, piles and platform conductors. The AXE can cut multi-string casings, including 30 inch, in a single pass using environmentally friendly inert consumables; removing the need for explosives or rig-based mechanical cutting tools. It has cut piles up to 2.6m in diameter.
The system is independently powered by a diesel power pack and can be deployed from a vessel of opportunity on wire, or from a rig on drill pipe. A key benefit of the AXE is its ability to cut below the mud line and when deployed with a wellhead connector, the cut and recovery can be completed in a single run. The AXE has an extensive track record of successful cuts in the Asia Pacific region, and has never left a wellhead behind!
Primarily designed for severance of multi-casing wellheads, the AXE can also cut subsea flowlines, umbilicals, jacket piles, caissons and all associated subsea infrastructure.
The AXE uses entrained grit water, as a cutting medium and is capable of entering and cutting wellheads with 7 inch, or larger, casing and severing through multiple casings of 7, 9⅝, 13⅜, 20 and 30 inches in a single pass cut.
The complete AXE system is made up of several skids, which can easily be trucked and/or shipped for deployment anywhere in the world. The modular design allows flexible deck configuration, if deck space is limited.
System modules:
AXE SYSTEM COMPONENTS
Cutting tool skid
Pumping skid
Grit Pot skid
Remote Control skid
Umbilical reeler skid
Workshop container
Bulk grit handling system
Workshop & Tooling container
Engine : Cummins NTA855 450 bhp
Fuel consumption : 95 l/hr (25 USG/hr)
Nominal flow rate : 12,000 l/hr (3,175 USG/hr)
Maximum working pressure : 14,500 psi (1,000 bar)
Grit consumption : 1.7 t/hr