Project Profile
Potential Value: US$75 million
Location: East of the UK/Irish Sea
Depth: 33 metres
Exploration start-up:-June 2009
Start-up Year: 3Q 2015
The Conwy and Corfe Fields are located in Blocks 110/12 and 110/13, approximately 33 kilometres (km) west of the nearest UK coastline and 106 km east of the UK / Republic of Ireland median line, in a water depth of approximately 33 metres (m). The Conwy and Corfe Fields have a maximum estimated recovery of 8,000 million barrels of oil. Conwy was drilled to about 883.92 metres in June 2009. EOGUKL planned to develop the Conwy Field as a tieback to the Douglas Complex. The development plan involved three production wells and several water injection wells to connect to a new unmanned platform. The Conwy platform was tied-back via a 12-kilometre (7.5-mile) 8-inch production flowline to the Douglas platform, situated on Block 110/13b.
The development was consists of the installation of a Normally Unattended Installation (NUI) and the drilling of three platform production wells, two penetrating the Conwy reservoir and one penetrating the Corfe reservoir. The NUI was installed in 2012 and drilling and pipelay operations completed in 2013. The production and injection wells were drilled using a standard jack-up drilling rig, and using Water-based Mud (WBM), with cuttings and associated WBM discharged to the sea. No extended well tests were carried out. The pipeline and umbilical installation operations were conducted using a conventional pipelay vessel. Commissioning and first oil was scheduled for Q3 2015.
Fluids from Conwy and Corfe was re-exported from Liverpool Bay to the existing offshore storage installation located in block 110/8a. Gas from Conwy and Corfe was mixed with gas from Douglas and used either for offshore power generation or re-exported to shore using an existing pipeline to the Point of Ayr terminal on the north coast of Wales.
Operator
EOG Resources: Operator with 100% interest
Contractors:
PSN (Production Services Network): FEED Contract
Technip: Subsea - Installation of flowline to the Douglad Field
HB Rentals: Delivery of 60Pax linkable accommodation complex to a jackup barge for the Conwy gas field development in Liverpool Bay off northwest England comprising of sleeper welfare modules, access stairs, walkways, recreational facilities, and meeting/conference rooms
Sub Contractors
Duco Ltd: Subcontracted by Technip for the supply of umbilicals