ATTENTION

Well, can we start?

GREET AUDIENCE

So, good morning. My name is Donatto.

INTRODUCE:

I would like to talk to you today about some of the most demanding vessels in the world nowadays.

I plan to speak about supply vessel and what I want is to give you the essential background information on supply vessels so that in the future you are going to be able to understand more about these complex vessels.

OUTLINE:

I have broken my speech down into 5 parts.

In the first part I give a few basic information about the offshore context (oil & wind) and what is actually a supply vessel.

In the next section I am going to show you all types of supply vessels.

In part three, I will explain characteristics.

In part four I show functions about PSV and AHTS.

In the last part I would like to make some general comments.

INTRODUCTION

OFFSHORE CONTEXT:

o So first thing you need to know is that when we talk about offshore we talk about things away from shore and when we think about away this away each day means more and more far away from shore so that’s basically why we need OSV.

o Just to give you some context, the first drilling was in 1947 drilled in 14 ft of water in Gulf of Mexico. But as you see in the graph in the past decade a huge number of deep-water discoveries have been made.

o So you may have been wondering why I am talking about this? Because I want to show that the "easy fruit" has already been picked, I mean, shallow water drilling have largely been exploited and that's why this massive new developments are being made in deep-water. As a result we have seen huge developments in OSVs.

SUPPLY VESSELS:

o Supply vessels are a fairly new type of ships. The need for this new category of vessel arose with the start of the oil exploration activity. Since then the use of supply vessels has been spread worldwide and the exploration of more demanding areas lead to a huge evolution of the supply vessels. Just to give you an idea the very first supply vessels were nothing more than tugs but today they are a state-of-art ships.

TYPES OF OFFSHORE SUPPLY VESSELS:

I was about not to show all of them but I get astonished when I see the greatness and complexity of offshore industry. Here they go:

o Platform Supply Vessel - PSV

Basically PSVs are commonly referred to as the "trucks of the sea", as they are designed to transport cargo to and from offshore oil rigs and platforms. They are good at accomplishing a variety of tasks in the supply chain. A PSV is a much-needed support ship. They fulfill a vital necessity in the nature of operations at the high seas.

o Anchor Handling Towing Supply Vessels - AHTS & Offshore tugs

AHTS vessels mainly perform anchor handling duties and towage of offshore drilling units and floating production units. They are actually the evolution of offshore tugs.

o Fast Support and Intervention Vessels - FSIV

o Crew Supply Vessel - CSV & Surfer Vessels

o Multi-purpose Supply Vessel - MPSV (as Siqueira showed you before)

o Offshore Construction Vessel - OCV

o Remoted Survey Vessel - ROV (Remotely Operated Vehicle)

o Diving Support Vessel

o Stand-by Vessel

o Seismic Vessel

o

PHYSICAL FEATURES

Any supply vessel need to be highly reliable with high maneuverability and have redundant systems due to its activities. So to meet these requirements we need to have the following design.

The superstructure as well the bridge is located at the bow of the ship. The unique design of the bridge that has a 360º view it's due the particular operations since when handling anchor or lifting any other supply the officers must have full attention and view looking to the stern.

There are derricks in each side of the vessel to stow any cargo or anchor properly.

As I said offshore vessels must have redundant systems in case of fail of any equipment. So to meet these requirement it has to have two or three kort nozzle propellers with variable pitch

AND stern and bow thrusters those features increase its capacity of maneuverability consequently its dynamic positioning system which is really important in any offshore operation.

These kind of propeller (kort nozzle) was choose because the AHTS requires high bollard pull. You may be wondering what is bollard pull. Just to water it down, it's basically used for measuring the strength of tugboats or in others words it’s a measure of towing power.

The engine room is located at bow since stern is not enough width to place all the machinery.

Here in this picture we have tanks which is located underneath the main deck to carry the bulk cargo.

FUNCTIONS

BASIC

o Usually all supply vessels have same basic functions and one or two specifics. Here it goes the basics:

Oil Spill Recovery

Fire Fighting

Search and Rescue operations

SPECIFIC

PSV: As I said before these are the trucks of the sea, they transport everything to the oil rigs. So these kind of cargo is split up in two.

o Deck cargo: Any cargo that is transported on deck which includes containers (that is smaller, more robust and heavier versions of the conventional containers), skips (for waste) or baskets as well pipes and other heavy constructions. Interesting fact is that in PSV we don't say that this is a 10.000dwt ship but a 1.000 square meters ship which is actually its deck capacity.

o Bulk cargo: anything that is transported in tanks underneath the deck. This kind of cargo includes products such as methanol, blended drill fluids, brine, water and oil. Nowadays the demand for bulk has increased so this has led to newly built vessels now being equipped with more tanks.

AHTS: This kind of vessel is nothing more than a tug. Actually the first anchor handling and towing operations in oil rigs were by tug ports. But then the oil exploration were getting far and far away from coast and it was required more powerful and reliable vessels. That's why this kind of vessel was developed.

...

COMMENTS

Hijacked of supply vessel

Importance of supply vessels in oil industry*

OUTLINING OPTIONS

Thanks the audience, invite for questions

REFERENCES