Monday, 27 August 2018

What is the difference between an oil rig and an oil platform?

You often hear reference to oil rigs and platforms, and sometimes people will say, that wasn't a platform, it was a rig; or the opposite. So why do the terms cause so much confusion? As usual, it is because there is some crossover in the terminology. But if you understand the underlying mechanics, you will be much clearer.

The short answer:
~ A platform is a permanent structure fixed to the seabed.
~ A rig is moveable platform, which is moved into place by barges and then secured in each location temporarily.

The long answer:
1. Platforms
Firstly, let's look at platforms.  They have three main parts; the jacket (the legs which are secured in the sea/ocean), the deck (a large flat surface area), and the modules (crew quarter blocks, drilling aparatus, storage containers etc. which are fixed to the deck).


A basic fixed platform is fixed in a permanent position on the seabed with anchors (as above) and is not intended to move. It provides a long-term, stable facility from which a lot of oil can be produced because it can host so much equipment and crew. As a result, they tend to be build in locations with known long-term oil deposits.

However, there are other types of platform which are similar. Compliant Towers (below) are like fixed platforms, but have more narrow, flexible jackets, meaning they move with the wind and waves. There are also tension-leg, subsea and SPAR varieties, as well as numerous other iterations and combinations of the above.

2. Rigs
Generally rig refers to a jackup rig. This is a moveable platform with very tall legs, which can be jacked up and down, meaning it can be towed into place and then lowers its legs into the seabed, creating a stable but temporary platform from which drilling or other work can take place. They tend to be used for smaller oil deposits and shallower water.


So why the confusion?
Well, the thing is, as you'll see from the above, jackup rigs, are moveable platforms, so you might see an incident where, for example, their platform is damaged. This would lead to references to 'the platform'. In the same way, fixed drilling platforms will have equipment onboard called the drill rig (the gear which actually drills into the seabed). So the word rig could be used in reference to a platform sometimes too.

1 comments:

Madonaldo 18 August 2019 at 10:55  

are everyone looking for ways online to get help solving their pregnancy and infertility problems when most of every native American is talking online about the help of Dr Mandaker Alamun. I checked him out when my husband who could not get me pregnant for over 9 years of marriage as a result of low sperm count became fertile and now, I am 5 months pregnant and it is this man known as Dr Mandaker who helped my husband solve his problem. My name is Alecia from CA USA. I would advise anyone and everyone who needs the help of any spell caster in love marriage,finance, job promotion,lottery spell,poker spell,golf spell,Law & Court case Spells,money spell,weigh loss spell,diabetic spell,hypertensive spell,high cholesterol spell,Trouble in marriage,Barrenness(need spiritual marriage separation),good Luck, Money Spells,it's all he does or looking for breakthrough in your political career to meet this Dr Mandaker the link to his website copy this link (witch-doctor.page4.me)His email contact witchhealing@outlook.com for He is a Reliable and trustworthy. I and my husband have gone to different hospitals having the thinking that I was at fault for not getting pregnant. But at the Federal hospital, they examined him too and his sperm count was low and unable to get a woman pregnant as a result of male infertility. It was then I sort out,thanks to Dr Mandaker.

  © Blogger template 'Isolation' by Ourblogtemplates.com 2008

Back to TOP