Archive for the ‘AHV’ Tag

Ice Ride   5 comments

While I’m trying to sort out my ‘permission’ statues (see ‘the bad news‘ ) I’ll be posting photos I know I don’t need permission to post and that were taken over two years ago.

Here is a bunch of birds having a rest on an iceberg in Greenland, not sure what type of bird they are but i’m sure they must have cold feet.

Ice Ride

Posted November 21, 2013 by rigmover in Greenland

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Good News and Bad News   32 comments

First the good news, I’ve had another photo published in a magazine called Interactions, it’s a photo of Archie (my dog) with xmas socks on, which I had placed on my blog.

 

Now the bad news, I have been told by my employer that I cannot publish photos of rig’s, platforms, & AHV’s, basically anything to do with the offshore industry without prior consent from the owner, so rigmover.com as we know it is no-more!!!! I was thinking of changing it to http://www.heylookatmydog.com or http://www.doyoulikemycar.com but thats just silly. So in the foreseeable future you will have to settle for photos of the sea and maybe the odd sunset, on which I’m sure you will get bored of very quickly.

I have a link to Interocean on my side bar, this is not the company I work for, Interocean use some of my photos on their web site.

This is very disappointing, as I’m sure I have passed on a little of what goes on out there, I have had some great feed back and I thank you all for that.

 

P.S. Don’t go to far rigmover.com will be back, in some form or another.

Posted November 8, 2013 by rigmover in My Work

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Move-on   10 comments

Finally made it home, fog grounded all helicopters for 5 days and a power cut at Aberdeen airport didn’t help.

The last move was all about getting a Flotel up close and personal to a platform, close enough to install a bridge between the two so workers could eat and sleep on the flotel and work on the platform.

This was done successfully with the help of the AHV’s Balder Viking, Brage Viking, Magne Viking and the Island Vanguard and with a great team of people.

Here is the platform the Gannet A from a stand-off location.

Garnet A

 

One of the AHV’s

AHV

 

 

And the reason we couldn’t get off the Flotel, got to say thanks to Jim for drinking all his coffee, eating all the Tab Nabs and just annoying him for those extra days.

Fog

Buoys at Work   21 comments

This job is quite a complex one, the flotel is held in position with 12 anchors, 6 of theses anchors have been pre-laid and 6 we are deploying now, the pre-laid anchors were done a while ago and the chain ends were buoyed off. Now we are back on location the AHV’s have to grab the buoys and pull them up on deck, disconnect the buoy and connect either the anchor chain or rope inserts and then connect the other end to the rig, here’s the guys on deck of one of the AHV’s grabbing one of the buoys.
First the AHV slowly moves toward the buoy.

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As it gets closer the guys on deck get ready and between two of them throw a cable around the buoy.

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Once lassoed the winch driver pulls the buoy up and over the roller.

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And then made secure on deck, all in a days work for these guys.

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Posted May 15, 2013 by rigmover in My Work

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Invergordon   19 comments

I’m back at work tomorrow, flying up to Inverness and then hire car to Invergordon, I’ve never stayed in the town of Invergordon before, always on a rig, so I might have time to explore a bit, If I do i’ll try a snap a few off and show you the place.

I’m joining the Maersk Resilient which is a large Jack-up, it’s one I was on a couple of xmases ago.

Here’s a shot of Invergordon from a rig’s point of view.

Invergordon

 

 

Here’s a shot of the Jack-up in the first picture I took a long time ago, I’ll be surprised if its still there.Gal 1

 

Some of the locals just carry on as if nothing is happening.

Invergordon

Dundee   9 comments

Digging through some old photos I found a rig move we did out of Dundee, I haven’t spent any time in Dundee so don’t know much about the place except what I just read on Wiki and it does sound like a pretty cool place.

We joined a jack-up called the Rowan Viking, this was brand new and wasn’t long here from Singapore, however if I remember it did sit in Dundee for a few months before I joined, due to red tape.

It a pretty big rig, 264′ in length and 289′ wide and can accommodate 120 people and can drill to a depth of 35000′.

Rowan Viking

At last we are on our way.

Rowan under tow

And I couldn’t resist a HDR of Dundee.

HDR Dundee

Posted April 16, 2013 by rigmover in My Work

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iPhone Friday   16 comments

Just finished a 235 mile tow which only took 48hours, just put 8 Anchors on the seabed in 12hours and now I’m chilling, I’ve been on nights so feel very tired, to combat this I had two deserts, I think my body was craving a sugar rush, trouble is now I can’t sleep.
Anyway here are a couple of shots of the move taken with my iPhone,

This is the tow vessel, it’s the Olympic Zeus, I’ve posted it before, it has something like 25,000 HP and a bollard pull of 250 tons so has no problem pulling us along at five knots.

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And a very nice day in the North Sea.

This is the Rig, you can see by the wake we are making we are cruising along very nicely.

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Have a great weekend, I’ll still be on here, chilling.

Posted April 5, 2013 by rigmover in My Work

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Rig Move for Dummies.   26 comments

Well after another successful rig move in the North Sea I thought it was about time I shared some more details about how and why we move these things, Why? well that’s easy, drill more holes! Get more Oil/Gas. Actually it’s not just that, a lot of rig moves will be to work on and repair sub sea assets, more about that if I ever find out more about that.

This last move was a re-entry, meaning we were putting the rig back on a location that had been drilled/worked on before. Sounds easy? Sort of, That is if you get it on the correct location, it’s easy to tell once you send a ROV down because you will see the assets on the sea bed, Tolerance on this sort of move is about 1 meter, on the other hand if it’s an open location, (meaning nothing on the sea bed) tolerance is around 5-10 meters.

For those of you who don’t know, a Semi-submersible (half above water, half below) drilling rig is held in position by 8 or 12 large anchors, around 12-15 tons, these are spread out around the rig evenly, So after the normal safety talks and meetings it’s time to start, we normally use 2 or 3 AHV’s (Anchor Handling Vessels, a Big Boat) These vessels all have Nav systems onboard, basically a laptop where they can see the rig, the anchor positions and themselves and the other AHV’s all live, if they move in the water they move on the screen.

For the first part of the move the AHV will come in close to the rig and we will past down the PCP (Permanent  Chasing Pennant), This is a collar permanently attached to the anchor chain and a 150 meter cable with a socket in the end, once passed down the the AHV it is attached to the boats work wire.

Here you can see a PCP wire cable running down the leg and into the water, when it appears again, it’s the short bit of chain and then the collar.
Sedco 704 PCP

 

The AHV’s work wire running down the deck. I took this shot while we were just standing by, if we had been working I would not be allowed on the back deck.

SONY DSC

 

Once attached, the AHV will proceed out to the anchor following a line on the nav screen.

Now another thing we had to do on this rig move was De-ballast before any anchors were recovered, why I hear you ask? Either you asked that question or were so bored you have already gone onto the next blog, but i’ll tell you anyway.

So what happens is, the anchor is lifted off the sea bed, brought up to the stern roller of the AHV, checked out and then the rigs large winches will haul in the anchor chain and store it in the chain lockers, but what do we do with the anchor then? we need to put it somewhere, so we rack it on these things.

Trans RatherJust under the fairleads (the wheels with the anchor chains going through) is the cowcatcher, (not sure if thats the real name for them) this is where the anchors are racked, they hook under the CC and the winch pulls tight and they don’t move. Now  some of you will see the problem here, I’ll show you another photo of the rig we just moved at transit draft, meaning it’s de-ballast.

Stena Spey

Now you see the problem, if we don’t de-ballast, the fairleads and the cow catchers are under water and we can’t see them to rack the anchors. You can see here how the rig floats in the water when it’s at working draft by the marks on the legs, this is now at transit draft, up on the pontoons ready for towing.

Now to get the rig up to transit draft is just a matter of pumping out all the water and up she comes, now you are waiting for me to say, Ah but it’s not as easy as that, and no it is really that easy. Oh but there is one sticky bit, the whole process of de-ballasting can take up to 12 hours and during a 3-4 hour period when the cross braces are coming out of the water is the critical time, during this time the rig is very unstable, no helicopters can land and no cranes and work, in fact if like me and you had to many mince pies at xmas you have to get yourself a PP (Porky Partner), now during the critical stage your PP must be at the opposite side of the rig to you, I work forward so my PP has to work aft, he wants to go to the mess for lunch on the port side, I have to go sit on the starboard side, it’s easy once you get use to it, during this very rig move I forgot to tell my PP I was going for a salad, I was in the mess and suddenly in he walked, the look of shock and horror on his face said it all when he saw me………..eating the last of the chocolate double ripple ice cream. Ok I just made that last bit up but the rest about the helicopters and cranes is all true.

Once all the anchors are racked and a boat is on the tow bridle we can start the move, here is a racked anchor. You can see one racked and the other chain where that anchor has been removed.

Pontoon

It’s as simple as that, all in a days work, or 10.

P.S. You know I don’t mean the dummies bit.

Posted January 23, 2013 by rigmover in My Work

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Favourites of 2012   9 comments

A couple of my favourites from 2012, both from Greenland.

I was working in Greenland for a month, we were suppose to be installing a sonar array on the sea bed but instead spend the entire time move icebergs away from a rig.

Ice watching.

Watching the ice

Thanks for visiting and have a happy New Year.

Posted December 31, 2012 by rigmover in Greenland

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Maersk Maneuvers   18 comments

Back to work for todays shots, I like to mix it up a bit. This was the only bit of excitement I had yesterday, watching these two AHV’s change places.
The one on the right is the Maersk Lifter, the one on the left is the Maersk Laser, both are ‘L’ class AHV’s, hence the names. Now the Lifter wanted to go into port for a crew change, so they called the Laser, the Laser said he would replace the Lifter so the Lifter could leave. Now the Lifter is connected to our Bow line, its a safety measure until we are fully operational. So this is what they did. The Laser came in from the left of the Lifter, the Laser had to get close enough to throw a line to the Lifter, once the Lifter had the line from the Laser they attached the line to a wire, the wire was pulled over from the Lifter to the Laser with a winch, once that wire was on the Laser it was connected to the Bow line and the Lifter then let go of the Bow line and the Laser pulled it on deck and connected it to it work wire, the Lifter was then free and could go off for his crew change.
Hope that makes sense.

Moving in.

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You can just make out the line the guy up on the gantry crane track is throwing.

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Have a great weekend.

Posted September 14, 2012 by rigmover in North Sea

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