This picture shows the Brent Bravo surrounded by other vessels during the long term field development programme of 1994/5 which lasted for approximately 18 months during which time the oil production process was completely shut down at enormous expense. The massive DB102 lifting barge on the right was there to remove several of the large, older process modules which had served the Bravo since 1975 and re-place them with 'state of the art' hi-tech systems required to maximise oil recovery into the 21st century. On the left is a temporary floating hotel called the Poly Confidence, an accomodation vessel designed to house all the many extra personnel that were required to carry out the enormous re-furbishment task, you should be able to just make out the bridge connecting it to the Bravo, just above the supply boat visible in the distance. Also visible on the picture are two of the three sister platforms of the Bravo, these are the Brent Charlie and further North the Brent Delta. The picture was probably taken form the fourth Brent platfrom, the Alpha, which is the furthest south of the four, there is roughly two miles between each platform.
To give you some idea of the size of these amazing structures, the legs of the Bravo (only two of the three are visible) are hollow tower like structures made of concrete which is a metre thick. The platform is stood in 147 metres of water and the distance from the sea level to the base of the platform is 30 metres. From this, one can only marvel at the size of the DB102, indeed it holds the world record for a single crane lift at sea.