A SEA FLOOR GRAVITY SURVEY OF THE SLEIPNER FIELD TO MONITOR CO2 MIGATION

Zumberge, Mark

The University of California (United States)

关键词: Natural Gas Fields;    Monitoring;    Seas;    Simulation;    Gravity Surveys;   

DOI  :  10.2172/821988
RP-ID  :  NONE
RP-ID  :  FC26-02NT41587
RP-ID  :  821988

美国|英语

来源: UNT Digital Library

【 摘 要 】

At the Sleipner gas field, excess CO{sub 2} is sequestered and injected underground into a porous saline aquifer 1000 m below the seafloor. A high precision micro-gravity survey was carried out on the seafloor to monitor the injected CO{sub 2}. A repeatability of 5 {micro}Gal in the station averages was observed. This is considerably better than pre-survey expectations. These data will serve as the baseline for time-lapse gravity monitoring of the Sleipner CO{sub 2} injection site. Simple modeling of the first year data give inconclusive results, thus a more detailed approach is needed. Work towards this is underway.