Hoisting systems - Aker Solutions

Aker SolutionsDrilling TechnologiesHoisting systemsMH RamRigMH RamRig represents state-of-the-art technologywith a well proven and successful operational trackrecord since 1998. It can be applied to fixed andfloating drilling platforms. The concept’s inherentfeatures make it especially competitive on deepwaterrigs. The concept is available with single, double ortriple stand rigs with capacities delivered from 150 to1,000 tons, and can easily meet future demands forhigher hoisting capacity and setback capacity.The MH RamRig solutions have successfully operatedin international waters. This opens for drilling in harshenvironment and in ultra deep water areas. To operatein arctic waters it can be designed as winterised.A dual MH RamRig is the ultimate deep water rig.This rig provides dual rig functionality at a lower totaloperational cost than a comparable conventional dualrig solution.• Safety, fingerboard at drillfloor level. Less overheadoperations• Documented lower weight, reduced spacerequirements and improved safety compared toconventional drilling packages• Lower centre of gravity increases variable deck load(VDL) capacity• Highly flexible and accurate integrated long strokeactive/passive heave compensation and stateof-the-artcontrol systems, improved operationalefficiency• The impressive accuracy and built-in automateddrilling function results in a smoother well path, lessweight on bit (WOB) variations and optimisation ofthe rate of penetration (ROP)• No drawworks, considerably increased brakingcapacity and minimal risk of dropping the BOP/riser.Drillfloor and substructureDue to its unique design, tubulars on the MH RamRigare racked vertically from drill floor to lower setback,saving valuable deck space without reducing the rig’sdrilling capacities. The concept is therefore ideal fordeepwater operations. The vertical racking of tubularshas the following main advantages:• All pipe handling functions are independent of thehoisting operations• Opening and closing of the elevator always takesplace at drill floor level, not at high level in thederrick• Simplified equipment for horizontal to vertical pipehandling• Reduced possibility of dropping objectsThe elevated drill floor also enables a very efficientand safe working environment for handling BOP andsubsea equipment.> Dual MH RamRig