RBR 2014-05 Page 1 of 2 General Description Owner: : SapuraKencana Australia Year of Build : 2012 Structural Design : Rob Elks & Associates Fabrication : Phillip Engineering Hydraulic Design : Pressure Dynamics Control System Design : FugroTSM Number Built : 2 Units Operating Philosophy • The rig can be controlled subsea by diver intervention • The rig can be operated topside from a control cabin with minimal diver intervention. This can be extended to be fully automated from the topside with no diver intervention required • The rig is self guide and self level as it tracks between rock bolt locations via feedback from the builtin gyro’s and sonars • A reloadable cassette carries 8 rocks bolt assemblies of a typical saddle arrangement • The drilling head can side shift for ease of aligning to the pipe • Bottom restraining gates assist with initial punch through for hole penetration • Drilling feed and RPM is recorded and monitored through the onboard computer • 3 pan and tilt cameras, 3 zoom cameras and 8 lighting control allow full topside view of all operations • The rig is operated via a Jupiter control box via hydraulics • All fluids are environmentally soluble • The hydraulic umbilical is 120m in length but can be extended to 240m • Operating depth 5-20m, extendable to 100m with minor modifications General Specifications • Operational mode: Air diving operation (base case) • Relocation mode: Self propelled as well as pick and place by contruction vessel • Pile / Rock Bolt Size: 219mm OD x 10.97 wt x 5.5m long • Performance: Cycle time of <30min to drill/grout & traverse • Reloading system: PISA magazine type system (8 RB assemblies) • Drilling capacity: Double / single pile through 50MPA rock formation • Reliability / cycles : Exceeds 2,000 rock bolt pairs • Water depth : 0 to 22m (current project) • Power system: Electro hydraulic system • Data recording: Drilling data, video c/w lighting • Interface: Fully compatible with dive and grout spread interface • Deployment: By lifting Asset name: Rock Bolting Rig The rock bolting rig has been designed for the Chevron Upstream Gorgon Domestic Gas Pipeline stabilisation; The rig design allowed for large or smaller pipe sizes and different rock bolting characteristics. Rock Bolting Rig