Case histories

High-Performance and Reliability at Sea: Hydroservice HPU for FPSO Offshore Project in Guyana

Off-shore Hpu & Customized Skids

Containerized Hydraulic Power Plant for Floating Production, Storage and Offloading Unit

Hydroservice designed a containerized HPU for an FPSO unit off Guyana-an ATEX-certified system designed to operate in highly corrosive tropical marine environments.

TALK TO AN EXPERT

Contact a specialist

We oversee every project from start to finish—from defining requirements to commissioning—developing tailored solutions that combine efficiency, reliability, and energy savings.

go

Customer Requirement

The customer, specialized in the development of tensioning systems for moorings and riser pull-in operations, needed a certified, robust, compact, and reliable HPU for the FPSO, capable of operating in extreme climatic conditions with high humidity and salinity. The HPU had to comply with international safety standards for hazardous environments (explosion-risk zones) while maintaining a configuration that allowed easy transportation and onboard installation.

In addition, the high installation density posed a technical challenge. This was overcome through careful 3D design work, which allowed the integration of all required components within a very limited space without compromising accessibility for routine and extraordinary maintenance.

Installation Area Classification:
– Hazardous Area Zone 2, Gas Group IIA, Temperature Class T3
– Direct exposure to atmospheric and corrosive agents, and solar radiation

The HPU and all its components were engineered to withstand and operate correctly within the maximum inclination and acceleration values expected on the floating unit.

What Hydroservice Delivered

Hydroservice managed all phases of the project internally—from engineering design to final testing—delivering a containerized HPU with the following main features:

  • Carbon steel structure with continuous welding and anti-corrosion treatment
  • Stainless steel hydraulic reservoir
  • Co-engineering with the client for integration of the electrical section
  • Four certified lifting points, including single-point lift option
  • Elevated internal floor with anti-slip grating
  • Protection against water ingress and internal pooling
  • Continuous oil cleanliness monitoring system
  • Compliance with IEC 60079, ISO 80079, ISO 4413, and ABS certification
  • Operation in ATEX zones with air cooling system for tropical climates

Special attention was given to preventing galvanic corrosion, a critical factor for long-term reliability in marine environments.

The Results

The HPU developed by Hydroservice fully met the client’s requirements, ensuring:

  • Reliable operation in extreme environments
  • Certified safety for explosion-risk areas
  • Ease of transport, installation, and maintenance
  • Seamless integration with the client’s modular offshore standardization program
  • Direct contribution to one of the world’s most advanced riser pull-in system management setups

This project confirms Hydroservice’s ability to deliver customized, robust, and safe solutions for the most demanding challenges in the Oil & Gas sector.