Brigantine, Caravel, Corvette and Shamrock gas fields

The Brigantine, Caravel, Corvette and Shamrock fields are natural gas reservoirs and gas production facilities in the southern North Sea, close to the UK/Netherlands median line. The fields have produced natural gas since 1999.

The fields
The Brigantine, Caravel, Corvette and Shamrock gas fields are located in the adjacent UK Offshore Blocks 49/19, 49/20 and 49/24. Brigantine, Caravel and Corvette follow Shell’s convention of naming southern North Sea fields after types of sailing vessels. Brigantine has four gas accumulations designated A-D. The gas reservoirs have the following characteristics.

Development
The gas producing capability of the fields was realised through five offshore platforms, their characteristics are summarised in the table. ##2 1 3 7

Production
Gas production from the fields is summarised in the table. Gas from these installations flows to the Leman A complex and from there to the Bacton gas terminal. The production profile, in mcm/y, of the Corvette field was as shown. {	"version": 2, "width": 600, "height": 300, "data": [ {			"name": "table", "values": [ {					"x": 1999, "y": 1782 },				{					"x": 2000, "y": 1048 },				{					"x": 2001, "y": 517 },				{					"x": 2002, "y": 154 },				{					"x": 2003, "y": 129 },				{					"x": 2004, "y": 471 },				{					"x": 2005, "y": 403 },				{					"x": 2006, "y": 174 },				{					"x": 2007, "y": 39 },				{					"x": 2008, "y": 63 },				{					"x": 2009, "y": 0 },				{					"x": 2010, "y": 0 },				{					"x": 2011, "y": 0 },				{					"x": 2012, "y": 0 },				{					"x": 2013, "y": 0 },				{					"x": 2014, "y": 0 }			]		}	],	"scales": [ {			"name": "x", "type": "ordinal", "range": "width", "zero": false, "domain": { "data": "table", "field": "x" }		},		{			"name": "y", "type": "linear", "range": "height", "nice": true, "domain": { "data": "table", "field": "y" }		}	],	"axes": [ {			"type": "x", "scale": "x" },		{			"type": "y", "scale": "y" }	],	"marks": [ {			"type": "rect", "from": { "data": "table" },			"properties": { "enter": { "x": { "scale": "x", "field": "x" },					"y": { "scale": "y", "field": "y" },					"y2": { "scale": "y", "value": 0 },					"fill": { "value": "steelblue" },					"width": { "scale": "x", "band": "true", "offset": -1 }				}			}		}	] }