Theddlethorpe Gas Terminal
Theddlethorpe Gas Terminal
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Theddlethorpe Gas Terminal

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Theddlethorpe Gas Terminal

Theddlethorpe Gas Terminal (TGT) is a former gas terminal on the Lincolnshire coast on Mablethorpe Road at Theddlethorpe St Helen close to Mablethorpe in East Lindsey in England. It is just off the A1031 and next door to a holiday camp and Mablethorpe Seal Sanctuary and Wildlife Centre (Animal Gardens).

From December 1969, there were plans for the terminal proposed by the Gas Council. Planning permission was given in April 1970. It was built in 1972 to receive gas from the Viking gas field from 4 July 1972, being the UK's third main gas terminal when owned by Conoco. The first stage cost around £5 million. A new 86-mile (138 km) 28-inch (710 mm) offshore gas pipeline had to be built for the plant. It was originally called the Viking Gas Terminal, changing to its current name in 1984.

In the early 1990s, a new pipeline was built to the terminal by Kinetica, a company jointly owned by PowerGen and Conoco. The pipeline to Killingholme was opened by Tim Eggar on 21 July 1992.

The main site was owned by ConocoPhillips, with pipelines to National Grid's National Transmission System, and E.ON's 20-inch (510 mm) Killingholme Pipeline System to both Killingholme A power station and Killingholme B power station, transporting 256,000 m3/h at a pressure of 40-55 bar. 10% of the UK's ever increasing gas requirements came from Theddlethorpe. By August 2018 gas production through Theddlethorpe was about 4 million standard cubic metres (mscm) per day representing about 2.5% of the UK seasonal demand of 160 mscm per day. Around one hundred people worked on the site. The 30-inch line from the NTS terminal (Feeder No. 8) is routed to Hatton Lincolnshire where it connected to the 36-inch NTS Wisbech to Scunthorpe line (Feeder No. 7). In 1988, in association with the LOGGS development a second 30-inch line (Feeder No. 17) was laid from the Theddlethorpe terminal to Hatton.

In 2017 ConocoPhillips announced that the Theddlethorpe terminal was to close in 2018. Production from Theddlethorpe ceased at 05:00 on 15 August 2018.

These are in the UK Southern North Sea Basin, part of the UK Continental Shelf (UKCS). There were four major pipeline systems:

Liquids from the refinery operation were transferred to Phillips 66's (previously ConocoPhillip's when the two companies were one) Humber Refinery next door to the Killingholme Power Station (ICHP), twenty six miles away to the north-west of Theddlethorpe.

The following gas fields produced fluids to the Theddlethorpe gas terminal.

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