1. Corallian Energy: licence interests
Corallian is a private company incorporated in England & Wales in
Corallian holds 5 licence interests in UK and is approved by UK regulator (OGA) as a licence administrator.
The Corallian management team is highly experienced, averaging 30 years professional experience of petroleum exploration and development.
The 98/11-”E” Colter appraisal well will be drilled with a mobile drilling unit which will be on location for a maximum of 45 days in
The well will be plugged with cement and permanently abandoned.
Any future exploitation will be performed from an onshore location. 1 1

2. Drilling Operations (up to 45 days)
The drilling rig will be a mobile “Jack-Up” unit with 3 or 4 legs, a drilling derrick and a deck.
A full Environmental Impact Assessment (EIA) is being undertaken and an Environmental Statement (ES) will be submitted to the Department for Business, Energy and Industrial Strategy (BEIS) for consideration under The Offshore Petroleum Production and Pipelines (Assessment of Environmental Effects) Regulations (as amended). This will be subject to a 30 day public consultation period.
The maximum height of the legs or the derrick will be between 90 and 120m.
Visual impact of the rig from key onshore locations will be presented in the ES.

3. Extended-reach production well with horizontal section in reservoir
Drilling: vertical appraisal well vs extended reach drilling production well
Vertical appraisal well to test multiple objectives
Extended reach production well with horizontal section in reservoir
Vertical appraisal well to test multiple prospective horizons.
Allows accurate logging / evaluation of the accumulation(s). 35 – 40 days to drill.
Extended-reach production well with horizontal section in reservoir to efficiently drain oil. 100 – 150 days to drill. Would be drilled from onshore.
Oil Water Contact
Oilfield -
Extended-reach production well with horizontal section in reservoir

4. Regulations governing offshore drilling
Crown Estate Act 1961 (within 12 nautical miles).
Energy Act (2008) (as amended).
The Marine and Coastal Access Act 2009.
The Merchant Shipping (Oil Pollution Preparedness, Response and Cooperation) Regulations 1998 (as amended).
The Offshore Chemicals Regulations 2002 (as amended).
The Offshore Petroleum Activities (Conservation of Habitats) Regulations 2001 (as amended).
The Offshore Petroleum Production and Pipelines (Assessment of Environmental Effects) Regulations (as amended).
The Offshore Installations (Emergency Pollution Control) Regulations 2002.
The Offshore Installations (Offshore Safety Directive) (Safety Case etc.) Regulations 2015.
The Offshore Petroleum Licensing (Offshore Safety Directive) Regulations 2015.
The Offshore Petroleum Activities (Oil Pollution Prevention and Control) Regulations 2005 (as amended).