The Anglia gas field, is a natural gas field in the United Kingdom's continental shelf of the Southern
North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...
. It is located in blocks 48/18 and 48/19 about 60 km (37 mi) east of the Lincolnshire coast. The reservoir is located at a depth of approximately subsea. The field was discovered in February 1972. Detailed seismic and appraisal well work were conducted in 1984.
[
] The reservoir was estimated to have 235 billion cubic feet of gas in place.
Owners
The original partners were
Ranger Oil (operator, 35.628%),
Conoco
Conoco Inc. ( ) was an American oil and gas company that operated from 1875 until 2002, when it merged with Phillips Petroleum to form ConocoPhillips. Founded by Isaac Elder Blake in 1875 as the "Continental Oil and Transportation Company". Curr ...
(31.25%),
Elf Oil and Gas (16.46%), Amerada Hess (12.83%), and
Triton Resources (3.832%).
[
] In December 2010, Ithaca Energy became operator of the Anglia field by acquiring 30% stake in the field from
GDF Suez E&P UK.
[
] Other partners are First Oil (32.8%),
Dana Petroleum
Dana Petroleum plc is an oil and gas exploration and production company based in Aberdeen, Scotland. Its activities are focused on the North Sea, Africa and The Middle East. It is a subsidiary of the Korea National Oil Corporation and is a forme ...
25%, and
DEA AG
DEA Deutsche Erdoel AG was an international oil and gas company headquartered in Hamburg, Germany. It was a subsidiary of L1 Energy. In 2018, DEA owned stakes in oil and gas licenses in various countries and operated natural gas underground storage ...
(12.2%).
[
]
Development
The field, at a cost of $120 million, was initially developed in 1991 through the Anglia A Normally Unattended Installation (NUI). The NUI had five producing wells including, at that time, the longest horizontal well drilled in British waters: the A3Z well has a 3,568 ft horizontal section. Production was through a 12-inch diameter pipeline to the Conoco (later
ConocoPhillips
ConocoPhillips Company is an American multinational corporation engaged in hydrocarbon exploration and production. It is based in the Energy Corridor district of Houston, Texas.
The company has operations in 15 countries and has production in ...
) operated LOGGS (Lincolnshire Offshore Gas Gathering System) complex and thence to
Theddlethorpe gas terminal. In 1993 the field was further development through the Anglia YM subsea template, with fluids produced via an 8-inch pipeline to Anglia A.
The design parameters of the Anglia production facilities are summarised in the table.
Fluids from the individual wells were routed to the Production Manifold. From the manifold fluid flowed to a Demister which removed solids and liquids, the gas passed directly to export. Water, sand and condensate from the Demister passed to the 2-phase Inlet Separator with sand routed to the Sand Accumulator which was periodically dumped to a caisson. The liquids from the Sand Accumulator were routed to a Hydrocyclone. Separated condensate was combined with the gas stream and flowed to export. Water from the hydrocyclone flowed to a Degasser and was discharged overboard. Anglia was also provided with a 3-phase Test Separator where individual wells could be tested.
[Anglia Flow diagram Gaz de France June 2005]
A summary of the key gas production data for the Anglia field is shown on the table.
The gas production profile, in mcm/y, for the Anglia field is as shown.
In November 2015 Ithaca Energy announced that production from Anglia would cease.
In August 2018 all production through LOGGS and the Theddlethorpe gas terminal ceased.
References
{{Reflist
Natural gas fields in the United Kingdom
North Sea energy