About us

Key facts

HomeAbout usAbout usKey facts

About our offshore operations

  • We have two offshore installations: 47/3 Bravo and 47/8 Alpha (the figures refer to the North Sea licensing block numbers which identify where the fields are located)
  • 47/3 Bravo is our main manned complex. It is split into three separate bridge-linked platforms
  • 47/3 Bravo typically operates with a minimum of 36 staff and up to 46 contractors on the facility at any one time, working a two-week rotational shift system (two weeks on/two weeks off). The maximum number of people on board 47/3 Bravo is 134
  • 47/8 Alpha is a manned platform used to maintain deliverability of gas from the field during peak demand days. Six staff and 21 contractors are able to work and live on the facility. Maximum personnel on board 47/8 Alpha is 27
  • Gas is contained within the rock strata called the Rotliegendes sandstones some 2743 metres (9,000 feet) under the seabed. The reservoir is a fault bounded anticline approximately 10km (6 miles) long by 3km (1.8 miles) wide and it varies in thickness from 24 to 36 metres (80 to 117 feet)
  • Gas is withdrawn from the reservoir as a vapour through 30 wells drilled and completed from the reservoir to the platforms. It is then sent via a 91cm (36inch) subsea pipeline to the Easington terminal. The 24 wells on 47/3 Bravo are used to re-inject the gas back into the reservoir

About our onshore operation

  • The Rough facility is on standby 24 hours a day, 365 days a year to deliver gas into or take gas from the gas network, all within approximately two hours of a customer's request
  • The Easington terminal processes the gas before it enters the National Transmission System through the entry point next to the terminal. It can handle up to 85 million standard cubic metres of gas per day
  • Easington's main functions are to receive and separate natural gas from the Rough offshore field and the BP-operated Amethyst field
  • Gas arriving from Rough is a mixture of condensate (a light oil similar to paraffin) and gas. Separation dries out the gas before the liquid condensate is treated, stabilised and sent by dedicated underground pipeline to either BP's Saltend facility near Hull or another site where it is shipped for use in the petrochemical industry
  • We employ approximately 80 staff and 20-25 contractors at the Easington site at any one time

About our employees' welfare

  • Offshore staff work 12-hour shifts on a two week on/three week off rota
  • Offshore accommodation is in en-suite two-man cabins. Recreational facilities include a cinema, gym and TV room, although no alcohol is allowed
  • Offshore staff are transported by helicopters operated by CHC Scotia from Humberside Airport
  • Centrica Storage Limited sticks rigidly to a safety case accepted by the Health & Safety Executive and has all the necessary safety facilities for an offshore operation
  • All our employees undergo rigorous safety training and are regularly required to take part in practice emergency sessions and refresher training courses
  • There are lifeboats on all of the platforms and there is always a standby vessel within five nautical miles of the installations