ι Riser access to subsea trees

down to 3,000 metres ι

Intervention Riser System (IRS)

Well Ops IRS (intervention riser system) enables access to conventional and horizontal subsea trees in depths down to 3,000 metres

Well Ops Intervention Riser System (IRS) enables access to both conventional and horizontal subsea trees in depths down to 3,000 metres.

The IRS system combines rapid response with maximum operational flexibility to meet the specific intervention needs of high rate producing deepwater subsea assets. All required through-tubing subsea well operations can be safely serviced with the IRS system, with multi-disciplinary operations being conducted in a single mobilisation.

The IRS can be utilised for wireline intervention, production logging, coiled tubing operations, well stimulation and full plug and abandonment operations.

The intervention riser system allows the Well Ops Q4000 to respond quickly to subsea well intervention needs as a cost effective alternative to a drilling rig. The system can be used to address loss of production or other emergency intervention needs using standard tooling and procedures.

Intervention Riser System (IRS)

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The global leader in subsea well intervention

Specifications

Maximum bore diameter 7 3/8” production

2” annulus

Maximum working pressure 10,000 psi

Maximum working depth (MWD) 3,000 m (10,000ft)

Hydraulics Operating Pressure

2,500 psi operational (3,000 psi max)

Weight 50 Te Subsea Package

5.8 Te HPU

Well Barrier Type 1 x 7 3/8” Hydraulic cutting gate valve (LCV)

2 x 7 3/8” Spring-assist fail-safe-closed gate valves (UCV & RTV)

3 x annular 2 1/16” Failsafe-closed gate valves

Proven Cut Capability

Retainer Valve: Slickline / Braided line / Electric line

Upper Cutting Valve: Slickline / Braided line / Electric line

Lower Cutting Valve: 2 7/8” Coiled tubing, 2” bar (low pressure seal)

Slickline / Braidedline / Electric line

Subsea Tree Compatibility Horizontal or Vertical

Subsea Tree Control Functions

11 spare hydraulic control lines

10,000 psi SCSSV control line

10,000 psi monitor line

10,000 psi chemical injection line

Applicable Uses Coiled tubing, Electric line, Slickline operations

Cementing operations

Well abandonment

Tree change outs

5.96

m (1

9' 7

”)