Subsea Installation & Recovery

Enhanced Compensator
  • Enhanced Compensator
  • LLOG Tree Install
  • Rigging CASIM
  • Tree installation

These services include in-line subsea heave compensation for the deployment and recovery of a wide range of subsea hardware, including subsea tree installation and subsea manifold installation. 

InterMoor provides a complete subsea equipment installation and recovery package:

— Detailed engineering
— Dynamic lowering analysis
— Operational procedures
— Compensators
— Tools and equipment
— Offshore personnel
 
Including
 
Load Out Services:
— Premobilization dock-side testing
— Load testing services
— Vessel load outs
— 880-ton ringer crane
— Welding crews
— Vessel demobilization
 

Heave Compensation Advantages include:

  - Increase installation vessel pool
  - Reduce vessels motions to increase Weather Windows
  - Reduce motions when landing subsea structure
  - Reduce resonance 
  - Reduce lowering line size (safety factor from dynamic motions)
 
Current Applicable Methods
  - Buoys using Lazy-S method
  - Active heave compensation systems
  - Passive heave compensation systems
 
Passive Heave Compensation System Advantages
  - Simplicity of design
  - Suitable for AHV deployment 
 

InterMoor's Compensated Anchor-handler Subsea Installation Method (CASIM)

InterMoor's Compensated Anchor-handler Subsea Installation Method (CASIM) is an ideal solution for the deployment of subsea hardware. Easily transportable, CASIM requires less expensive vessel support, less deck space and demands fewer deck operations. CASIM configurations can be run in single, double or in series, depending on load or circumstance.
 
CASIM’s advantages include:
  - Easily transportable
  - Requires less deck space 
  - Demands fewer deck operations. 
  - Eliminates concerns about entangled rigging
 
CASIM configurations can be run in single, double or in series, depending on load or circumstance. Units are pre-charged at the surface to deliver the needed compensation for the load at depth. Each CASIM unit has a maximum stroke of 10 ft.
 

60-Ton Heave Compensator Specifications:


Safe Working Load (SWL)............60 Tons
Nominal Max Static Dry Load.......60 Tons
Equipment Weight.........................20 Tons
Overall Dimensions......................23 ft x 6 ft x 7 ft
Stroke..............................................13 ft
Depth Compensation...................Included
Interface...........................................ROV Panel
Subsea Adjustable....................... Increase/Decrease Pressure Subsea
Damping..........................................High and Low Setting
Spring Rate.....................................Stiff, Medium and Soft
Lock..................................................Hydraulic Lock on Main Rod
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Specifically designed for trees, jumpers, manifolds and
other subsea assets.
 

 

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