Offshore Support Vessels (OSV) Crew & Technical Management
Anchor Handling Tug Supply (or AHTS) vessels are very powerful ships normally seen working with Offshore installations, such as a Drilling unit or even a Semi-Submersible Rig. AHTS vessels have crane-like equipment (known as “the winch”) that can be attached to the installations and then propelled forth in the water. The “anchor supply” mentioned as a part of the vessel’s name, is then allowed to be sunk into the water in order to keep the installations steady. They also provide towing assistance during tanker loading, deep-water anchor handling, and towing of threatening objects. AHTS vessels sometimes also serve as Emergency Response and Rescue Vessels (ERRVs) and as supply transports.
The Platform Supply Vessel (or PSV) is an OSV specially designed to supply oil and gas platforms at the sea with logistic support. Platform Supply Vessels also transport goods, tools, equipment, and personnel to and from offshore oil and gas platforms, and other structures.
The Cable Laying Vessel is a ship designed to lay cables underwater for telecommunications, electric power transmission, or other purposes. There are two main types of cable ships: cable repair ships and cable-laying ships.
The Seismic vessel is used as a survey vessel for the purpose of pinpointing and locating the best possible subsea area for oil or/and gas drilling. The Seismic is a vessel mapping out geological structures in the seabed by firing air guns transmitting sound waves into the bottom of the sea. The echo of the shot is captured by listening devices/hydrophones being towed behind the vessel. In addition to being vessels that survey underwater seismology, seismic vessels are also used to study the geology of the oceans and seas.
The Multi Purpose Supply Vessel (or MPSV) is what its name says: an offshore support vessel for multiple purposes; an MPSV can perform a range of activities including supply duties, lifting operations, ROV and survey activities, platform and SPM maintenance, diving, light well intervention and accommodation support.