Definition
The Corrib gas project is an offshore natural‑gas development off the western coast of Ireland that includes the Corrib gas field, associated offshore production facilities, a subsea export pipeline, and an onshore processing plant near Kilcommon, County Mayo.
Overview
The Corrib field was discovered in 1996 by Royal Dutch Shell and its partner, Atlantic Richfield Company (ARCO). The project is operated by Shell, with partners including Statoil (now Equinor) and Vermilion Energy. Development proceeded in two phases: Phase 1 involved the construction of offshore production wells and a subsea pipeline; Phase 2 added a second production platform and expanded the on‑shore processing capacity. Gas production commenced in December 2015 after a protracted period of regulatory review and local opposition. The project delivers natural gas to the Irish national transmission system, contributing to domestic energy security and reducing reliance on imported gas.
Etymology/Origin
The name “Corrib” is derived from Lough Corrib, a large lake located in the west of Ireland near the project's on‑shore facilities. The field’s designation reflects the geographic proximity to this historic water body.
Characteristics
- Location: Approximately 83 km (52 mi) northwest of the Irish coast, in water depths ranging from 150 m to 250 m.
- Reservoir: Sandstone reservoirs of Miocene age, situated at a depth of roughly 2 600 m below sea level.
- Estimated reserves: Initially assessed at about 1.1 trillion cubic feet (TCF) of recoverable natural gas, with later revisions adjusting the figure within the range of 1.0–1.2 TCF.
- Production capacity: Designed to deliver up to 105 million standard cubic feet per day (MMSCFD) of gas, although actual output has varied with operational and market conditions.
- Infrastructure:
- Offshore facilities: Two production platforms linked to a network of subsea wells.
- Export pipeline: A 90‑km subsea pipeline transporting gas to the on‑shore terminal.
- On‑shore processing plant: Situated at Kilcommon, equipped for gas dehydration, compression, and metering before injection into the national grid.
- Economic impact: Generates revenue for the Irish government through royalties and taxes, and provides employment opportunities in engineering, construction, and operations.
- Environmental and social aspects: The project attracted significant local opposition concerning land use, safety, and environmental protection. Mitigation measures, including safety zones and monitoring programs, were implemented as part of the project’s regulatory approvals.
Related Topics
- Irish natural‑gas infrastructure (e.g., the Shannon‑Gaslink pipeline)
- Shell plc’s operations in Europe
- Energy policy of the Republic of Ireland
- Offshore hydrocarbon development in the Atlantic margin
- Controversies surrounding the Corrib gas project, including community protests and legal challenges
- European gas market and supply diversification
All information presented reflects verified sources up to the latest publicly available data; no unconfirmed speculation is included.