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Equinor

Snohvit

The Snøhvit CCS Project, operated by Equinor with partners Petoro, TotalEnergies, Neptune Energy, and Wintershall Dea, is located in the Barents Sea off northern Norway. Since 2008, the project has captured and stored about 0.7 million tonnes of CO₂ per year from the liquefied natural gas (LNG) facility at Melkøya, near Hammerfest. CO₂ is separated from the well stream at the LNG plant, transported back offshore via pipeline, and injected into the Tubaen Formation, a saline aquifer approximately 2,600 meters below the seabed. The Snøhvit development was the world’s first LNG facility with integrated CCS, and it has now stored over 8 million tonnes of CO₂. Continuous monitoring, including seismic surveys, pressure testing, and downhole logging, has confirmed the security of long-term storage. The project demonstrates the integration of LNG production with carbon management and remains a reference case for offshore CCS tied to Arctic gas resources.

City

Country

Norway

Region

europe

Project name

Snohvit

Overview

Full Project Overview

All key information and technical data related to this project

Overview

Company:
Project name:
Snohvit
Project categories:
operational
Country:
Norway
Region:
Europe
Applicant name:
Equinor Energy AS
Status:
Permitted
Well applications:
2
Injection rate (Mt/year):
750,000
Total storage capacity (Mt):
90,000,000
Announcement date:
2008-01-01
Data

Wells

Data for injection rates, perforation, and other well-related metrics.

F2-H

Injection rate (Mt / year)
365,000
Injection years
3
Wellbore schematic
Perforation intervals (feet)
8,330 - 8,471
Well class
Injector

G-4 H

Injection rate (Mt / year)
675,250
Injection years
13
Well class
Injector
Data

Geology

Subsurface data for carbon storage.

Sto

* Graph available
Depth TVD (ft)
8038
Porosity
12%
Permeability (md)
150
Temperature (°F)
239
Pressure (psia)
4,200
Krw @ Sgr
1
KrCO₂ @ Swr
1
Water exponent
3
CO₂ exponent
3
Residual water saturation
0.1
Residual gas saturation
0.1
Model
Corey-Brooks
Relative Permeability Graph

Tubaen

Gross thickness (ft)
125
Depth TVD (ft)
8400
Porosity
19%
Permeability (md)
750
Temperature (°F)
203
Pressure (psia)
420
Krw @ Sgr
1
KrCO₂ @ Swr
0.7
Residual water saturation
0.13
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Project Documents

Technical, design, and planning materials outlining the project’s scope, development approach, and implementation details.