Archive for the ‘Offshore’ Tag

Christmas Offshore   22 comments

This has been the first Christmas I’ve spent at home in 5 years and it has been fantastic. December is a busy month for us, last year while I was away I missed,(In order) My son’s birthday, our twentieth wedding anniversary, Christmas day, boxing day, my birthday, New years eve, and new years day. The worst thing was, the weather was so bad we didn’t do anything.

But it’s not all doom and gloom off-shore at Christmas, everybody knows that we are all stuck out there so we make the most of it, movies and games, go to the gym or just chill.

Christmas day lunch is to die for, last year we had two sittings, we were on the first, we took our seats, read the menu, had a choice of starters, followed by a large choice of main dishes, deserts were out of this world, all washed down with non alcohol beer and wine.

But the evening meal is when the staff onboard really go to town, it’s a cold buffet, I won’t tell you about it because I wouldn’t be able to give it justice, here is a shot of part of it.

Xmas 2011

 

This all goes on during 128 knot winds, 10 meter waves. now we are on a jack-up so we don’t move around that much but the noise from the wind whistling through the legs was really loud.

This photo shows the weather, these waves are suppose to be 10 meters high but the wind is so strong it’s keeping them down around 7 meters. I took this shot from the pilot house which is about 7 stories up.

128 knot winds

 

After doing nothing for 28 days we were allowed to go home, the day after we left they decided to move, as they started to jack down into the water a weld on one of the legs failed, properly due to the very high winds and stress of the legs flexing. The jack-up was immediately towed to shallow water for repairs and checks on all the legs, a big job, here is part of one leg.

Jack-up Leg

 

A month later and guess where I was, yeah back onboard, we towed it to where it should of gone and sat it on the seabed. Job done.

We have a fiftieth birthday party tonight (not mine) My birthday tomorrow (not fifty yet) then New Years eve, so have a great new year and I’ll post again next year.

Posted December 29, 2012 by rigmover in North Sea

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Drill String   14 comments

I thought I would try a bit of show and tell, when on a rig I don’t spend time with the drilling crew as I’m more on the marine side of it, so I have had to pick up snippets of information when and where, i’ll try my best, but bits of information may be wrong, but you should get the general idea.

A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the top drive) to the drill bit. The term is loosely applied as the assembled collection of the drill pipe, drill collars, tools and drill bit. The drill string is hollow so that drilling fluid can be pumped down through it and circulated back up the annulus (the void between the drill string and the casing/open hole).

Here is some 30 foot lengths of drill pipe laying down on the deck of the rig, the black plastic caps on the end of each pipe are there to protect the thread, these are unscrewed and used again when the pipe is removed from the hole.

 

The pipe is laid down for transit as we don’t want the rig to be top heavy whilst under tow, once on location and all Anchors are deployed the drill pipe can be lifted up to the derrick and screwed together, normally 3 lengths in one stand as seen below, the drill pipe is on the left side of the derrick in stacks of 3 ready to be deployed by the Top Drive. (be warned I’ll be talking about that tomorrow)

 

 

On the business end of the drill pipe is the drill bit, this is rotated by the top drive, also each cutting head is rotated by high pressure mud being pumped down the hollow centre of the drill string.

Posted November 20, 2012 by rigmover in My Work

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