Fleet & Maritime Operations

Fleet & Maritime Operations

GranEnergia operates three compact semi-submersible UMS vessels — Olympia, Venus and Reliance — all equipped with advanced dynamic positioning systems and designed to perform maintenance, connection, commissioning and decommissioning activities on offshore platforms, as well as to support operations during turret-moored FPSO campaigns.

With an operational capacity in the range of 450 to 500 personnel, the fleet provides comprehensive infrastructure to support personnel and material logistics, ensuring efficiency, continuity and safety in offshore operations. The vessels operate continuously in DP and have a strong track record of performance when connected to various types of production units, including fixed platforms, semi-submersibles, spread-moored FPSOs and turret-moored FPSOs.

Compact Semi-Submersible Advantages

  • High connection rate performance
  • Low operating cost and fuel consumption
  • Motion-compensated Gangway
  • Helideck compliant with international standards
  • Large free deck space for project support
  • Long-reach Knuckle Boom crane
  • Excellent client performance evaluations
  • Turret-moored FPSO operations without the need for AHTS support
  • Versatility of Services (personnel and material logistics, replacing helicopters and PSVs)
  • Supply of utility services over the Gangway (fuel, electrical power, technical water and potable water)

In 2014, The Compact Semi-Submersible was elected as Support Vessel of the Year at the Riviera OSJ Conference in London.

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Third-party EBN Services

In Brazil, foreign vessel owners are required to contract their services through a Brazilian Shipping Company, known as an EBN. An EBN is a legal entity established under Brazilian legislation and headquartered in the country, authorized to perform waterway transport activities and licensed by the Brazilian maritime authorities.

Given the operational complexity of the Brazilian environment, partnering with an experienced local company is essential. Operators may frequently encounter contractual, operational, regulatory and legal challenges with significant impact. In addition, alignment with the relevant governmental authorities is crucial.

GranEnergia is an international Brazilian shipowner and offshore contractor, headquartered in Brazil and the Netherlands. Over the years, the company has developed extensive local experience and know-how, becoming a preferred partner for foreign contractors operating in Brazil.

GranEnergia provides support throughout the entire importation process of the vessel, from its entry into Brazil to its departure after the completion of the charter contract. Services include regulatory assistance to ensure compliance with local legislation and requirements, operational support, vessel management, logistics, port services and personnel mobilization.

EBN Services

  • Contracting services
  • Regulatory support
  • Legal and tax consultancy
  • Vessel Importation
  • Importation of goods & spare-parts
  • Local content crew and personnel support
  • Marine Services
  • Visa service
  • Technical support
  • Maintenance
  • Logistic support of materials and personnel
  • Storage and Warehousing
  • HSE Compliance
  • Lay-up Services

Recent News

2025
Nov

GranEnergia Starts New UMS Project with Petrobras

2025
Nov

GranEnergia successfully completes ISO 9001, ISO 14001 and ISO 45001 maintenance audit

2025
Sep

GranEnergia Initiates New Campaign with Petrobras

2025
Jul

GranEnergia Launches Sexual Harassment Prevention Training

2025
Jun

GranEnergia receives recommendation for ISO 37001 certification renewal

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More news like this

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2021
Jan

MODEC do Brazil

In January 2021, CSS Venus mobilized from the Port of Açu (Br) for MODEC in Brazil to support its Maintenance Campaign of its large Brazilian FPSO Fleet. MODEC is a leading provider of floating production solutions such as FPSOs and TLPs to the offshore oil & gas industry. MODEC's units are able to handle oil & gas production in ultra-deep water as well as in harsh environments.

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2019
Dec

Equinor

In December 2019, CSS Olympia mobilized for Equinor in Brazil to support the Hook-up and Commissioning of the Peregrino-C platform. Gran Services, the group's Integrity and Logistics company was hired to support Equinor with the Hook-up and Commissioning of the Peregrino-C platform. The Peregrino oil field is located approximately 85km offshore Brazil, in the Campos basin, in water depths of 100m.

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2019
Feb

Total Angola - Phase II

Starting from the second quarter of 2019 up January 2019, CSS Venus supported Total Angola with its maintenance campaign on the spread moored FPSO Girassol which is located in Block 17 in 1,300 meters of water depth.

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2019
Jan

Total Angola - Phase I

During the first 6 Months of 2019, CSS Venus supported Total Angola with the Hook-up and Commissioning of its newbuild FPSO Kaombo Sul (Turret Moored). With a client POB of about 200 persons, CSS Venus reached a 100% availability during this project. The Kaombo project, located on Block 32, 260 kilometers off the coast of Luanda, in ultradeep water depths, ranging from 1,400 to 2,000 meters.

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2018
Oct

Total Nigeria

During Q3 of 2018, CSS Venus supported Total Nigeria on the Shutdown of the AKPO FPSO. The deep-water Akpo field, is located more than 100 km offshore Nigeria and was brought onstream in March 2009. The field's water-depths are ranging from 1,300 m to 1,450 m

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2018
Jan

Saipem

In 2018, after mobilizing under its own propulsion power from China, CSS Venus executed a 6 Month project for Saipem, supporting Total Angola with the Hook-up and Commissioning of its newbuild FPSO Kaombo Norte (Turret Moored). With a client POB of about 300 persons, CSS Venus reached a 97% availability for its client. The Compact Semi-Submersibles have a low fuel consumption and thanks to the excellent maneuverability, the Compact Semi-Submersible vessels do not need AHTS for repositioning. The Kaombo project, located on Block 32, 260 kilometers off the coast of Luanda, in ultradeep water depths, ranging from 1,400 to 2,000 meters.

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2014
Jan

Petrobras

From June 2014 to the end of 2019, CSS Olympia supported the 'Integrar Consortium', the GranEnergia and Enesa Consortium performing integrity services on various Petrobras production platforms in the Campos and Esperito Santo Basin. More than 14 Campaigns have been successfully concluded by CSS Olympia. From our 34.000m2 support base in Macaé-RJ, major production capacity was guaranteed for these projects and more than 1500 staff delivered a high quality service on the job.