Anchor handling tug supply vessel
Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, and use them to secure the rigs in ctcwd.com vessels sometimes also serve as Emergency Response and Rescue Vessels (ERRVs) and as supply transports. Mar 23, · Anchor Handling 'World Record' for Island Offshore's Vessel March 23, Norwegian offshore vessel operator Island Offshore has recently set what it says is a world record with its deep-water installation vessel Island Victory during pre-laying of anchors at Lundin Energy's Solveig field in the North Sea, off Norway.
It is common knowledge that oil rigs are located in the middle of the ocean or in the high seas. But just as this is easy to understand, the question arises that what type of vessels help such oil rigs reach the middle of the ocean? The anchor handling tug supply vessel AHTS is the answer to this question. The anchor handling tug is a naval vessel that is solely concerned with the objective of either tugging or towing an oil-rig or a ship. When it comes to oil rigs, these tugs form the most important necessity as without their wjat, it would be impossible to place oil rigs in the required sea and oceanic areas.
Anchor handling tug vessels or systems have a crane like equipment known as the winch that can be attached to the oil rigs and then propelled forth in the water. AHTS vessels are a type of supply vessels that supply tugs and anchors to not just oil rigs but also to cargo-carrying barges.
Technically, an AHTS is a very huge naval vessel, mainly because of the equipments that it carries — tugs and anchors along with the winches. In order to transport such a heavy bulk in a manner that they are lost while the AHTS is moving, it is but natural that the design and construction of such ships has to be accommodating to fit such equipments easily. In addition to towing and tugging oil rigs, another major feature of vessrl anchor handling vessels is that they also act as rescue vessels for other cessel in times of some emergency.
If a ship or a boat requires immediate anchor handling or towing or tugging, and if an anchor handling tug is in the oceanic vicinity, then they are a great source of help to such stranded vessels. Since the AHTS provide a multi-utility facility, as naval vessels they are demanded in a higher coverage area. Also since in contemporary times, oil drilling from the oceanic areas has increased and is a regular activity, the increase in demand and usage of AHTS makes a lot of relevance and sense.
Although the knowledge about AHTS is not that common, among people whose routine work involves shipping and oil drilling, the concept of AHTS is not something that is new. The anchor handling tug and supply vessels have been an intrinsic part of the oil-drilling industry right from the time drilling oil from oceans handing an option was raised.
Also how to measure 1 6 cup a point to ponder, it can be mentioned that since such vessels how to connect iphone to itunes on new computer anchor handling and are used for the purpose of rescue of other vehicles, they can be used as effective tools to prevent oil rig capsizing and other types of mishaps occurring in the high sea waters.
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An anchor is a device, normally made of metal, used to connect a vessel to the bed of a body of water to prevent the craft from drifting due to wind or ctcwd.com word derives from Latin ancora, which itself comes from the Greek ?????? (ankura).. Anchors can either be temporary or permanent. Permanent anchors are used in the creation of a mooring, and are rarely moved; a specialist. Nov 08, · The anchor handling tug is a naval vessel that is solely concerned with the objective of either tugging or towing an oil-rig or a ship. When it comes to oil rigs, these tugs form the most important necessity as without their help, it would be impossible to place oil . Vessel ALP DEFENDER is a Anchor Handling Vessel, Registered in Netherlands. Discover the vessel's particulars, including capacity, machinery, photos and ownership. Get the details of the current Voyage of ALP DEFENDER including Position, Port Calls, Destination, ETA and Distance travelled - IMO , MMSI , Call Sign PDDE.
During the past decades the offshore oil and gas industries have expanded tremendously, which has led to ever increasing demand for offshore support vessels OSVs to carry out different operations necessary for floating drilling rigs, as well as moored or fixed production platforms. In order to encompass a more varied and multifunctional role, the facilities installed on board OSVs vessels have been revolutionized, so that they are now amongst the most technically sophisticated vessels afloat.
The OSVs can be divided into a number of types according to the operations they perform: seismic survey ships, platform supply vessels PSV , anchor handling tugs, anchor handling tug and supply vessels AHTS , offshore construction vessels OCV , ROV support vessels, dive support vessels, stand-by vessels, inspection, maintenance and repair vessels IMR and variety of combinations of these.
Dedicated seismic survey vessels are highly specialised ships. The working decks are enclosed but typically are open at the stern and at a lower level, have the air gun handling system and storage, and at a higher level, they have winches and storage reels for streamers.
The ship itself must be capable of accurate track and station keeping and the propulsion system must have low radiated noise and minimal propeller induced noise to avoid interference with the survey equipment.
See also Seismic Ships. Platform Supply Vessel PSV — The PSV is designed for supplying offshore drilling rigs and production platforms with necessary equipment, stores and drilling consumables.
These are typically cement, baryte and bentonite transported as dry powders; drill water; oil or waterbased liquid mud, methanol and chemicals for specialized operations.
The PSV loads at a shore base. Liquid cargo is carried in double bottom tanks, dry bulk cargoes in special pneumatic pressure tanks, equipment and drill pipes on the aft open deck. At the rig or platform, the liquid and powder cargoes are pumped up or transferred pneumatically while deck cargo is handled by the rig crane.
The greatest dangers to a crewman working on a supply vessel include being washed overboard in bad weather conditions or being harmed — either by the cargo he is handling or by the equipment he is using. These include handling the anchors and mooring chains for drilling rigs, towing of rigs and platforms together with subsequent positioning on site, and platform supply duties. The required bollard pull has a powerful influence on the design, since this defines the power need, the propeller size, hull shape and depth aft to give the necessary propeller immersion.
Hull beam and shape shall give good stability, particularly when heavy moorings and anchors are suspended from the stern. Anchor handling requires high power, winch capacity, deck space aft, storage bins for rig chains and auxiliary handling equipment.
A stern roller is used to ease the passage of wires and anchors over the stern of the vessel during deploying or weighing of the anchor. The DSV is fitted with a moonpool — a hole in the middle of the vessel open to the sea — through which divers, remotely-operated vehicles and other equipment is passed to and from the worksite. The DSV shall maintain an almost exact position over the worksite during diving operations. In order to accomplish this, it shall be provided with a DP3 class positioning system.
Such vessels are often able to carry out other tasks, such as ROV operations and general supply duties. ROV Support Vessels are equipped with computer-controlled, precision, position-keeping capabilities with added redundancy features, such as multiple computers, thrusters and reference systems.
Construction Support Vessels are designed to provide tailored solutions and facilitate larger projects that often require such vessels to remain on location for long periods of time. Related content. Load more.