Welcome to AMET-IST

5 Types of Offshore Vessels and their Functions

Published on August 20th 2024

The Marine industry is vast and busy; ships and submarines are always working on and under the sea respectively, doing research, trying to make the environment better, or working on better defence tactics in case of war.

But what about the work that happens out of the sea? Ever wondered if there are vessels for that? The answer is simple. Yes, there. Offshore Vessels help with a wide range of tasks: from providing support to crew, to lifting heavy equipment. And for each of these tasks, there exist different kinds of offshore vessels.

What are Offshore Vessels?

Offshore vessels are specialised marine ships designed for various tasks related to offshore oil and gas drilling, oceanic exploration and support of offshore platforms.

Offshore Vessels are designed with unique capabilities to meet the rigorous demands of offshore conditions. They can withstand harsh marine environments, like extreme weather conditions, high waves and deep water. There are five main types of offshore vessels used by the Marine industry. They are:

  • Platform Supply Vessels (PSVs)

    These are designed to transport supplies and equipment to and from offshore oil and gas platforms. They carry materials such as drilling mud, cement, chemicals and spare parts.

    Features are Large open deck space for cargo, tanks for liquid cargo, and dynamic positioning systems.

  • Anchor Handling Tug Supply Vessels (AHTS)

    They handle and deploy anchors for oil rigs, tow them to desired locations, and provide services similar to PSVs as well.

    Features include Powerful winches and towing equipment, large open deck space, etc.

  • Dive Support Vessels (DSVs)

    These vessels support underwater diving operations, such as inspections, maintenance and underwater structure repairs. They serve in oil and gas fields and salvage operations.

    Their features include diving bells, decompression chambers and specialised equipment for supporting divers.

  • Construction Support Vehicles (CSVs)

    They are used for construction, installation and maintenance of offshore structures such as platforms, pipelines and wind farms. They also do the heavy lifting.

    Features of these vessels are heavy-lifting cranes, dynamic positioning systems, remotely operated vessels and big deck space.

  • Well Intervention Vessels (WIVs)

    These vessels provide services such as maintenance and enhancement of oil and gas wells, including well stimulation, repair and decommissioning.

    This vessel’s features are advanced well intervention equipment, dynamic positioning and modular units that can be adjusted according to specific project requirements.

Aside from these 5 types of offshore vessels, there is a special type of vessel that plays an integral role in the Marine industry. These are the Offshore Support Vessels or OSVs.

OSVs are designed to assist with the operations of offshore drilling rigs, oil platforms and other maritime facilities. While OSVs are not engaged in drilling or the production process, they provide support services to the vessels that do. Their functions include:

  • Supply duties: Carrying food, water and fuel to offshore platforms and drilling sites.
  • Personnel transportation: Ferrying workers to and from offshore locations
  • Anchor Handling: AHTS Vessels are a type of offshore support vessel, in charge of managing ship anchors.
  • Emergency response: Firefighting, oil spill recovery and rescue operations.

AMET University’s Marine Engineering course:

If you are wondering where you can learn more about various types of onshore and offshore vessels, then you have come to the right place! AMET University’s BE in Marine Engineering is the best ship engineering course available.

From learning how to apply theoretical knowledge in practical situations to using the knowledge of marine engineering on onboard ships to meet the needs of maritime industries, you will learn everything there is about ship engineering!

Copyright © 2024 AMET All Rights Reserved