Andy Chadwick
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View article: Seismic amplitude analysis provides new insights into CO2 plume morphology at the Snøhvit CO2 injection operation
Seismic amplitude analysis provides new insights into CO2 plume morphology at the Snøhvit CO2 injection operation Open
CO2 has been injected at the Snøhvit Field since 2008, with the storage operation split between two distinct injection phases. Until 2011, CO2 was sequestered in the deeper Tubåen Formation before problems with increasing pressure necessit…
View article: Review of Offshore CO2 Storage Monitoring: Operational and Research Experiences of Meeting Regulatory and Technical Requirements
Review of Offshore CO2 Storage Monitoring: Operational and Research Experiences of Meeting Regulatory and Technical Requirements Open
Legislation for offshore storage has been developing over the last decade or so and is currently most developed in Europe. Although the large-scale operating sites in Europe were started prior to the regulations coming into force, any plan…
View article: CO2 Storage in Depleted or Depleting Oil and Gas Fields: What can We Learn from Existing Projects?
CO2 Storage in Depleted or Depleting Oil and Gas Fields: What can We Learn from Existing Projects? Open
Storing CO2 in depleted or depleting oil and gas fields has now been proven at a number of sites worldwide. Key risks have been overcome, for example, relating to site design for dealing with reduced reservoir pressure, re-using infrastruc…
View article: Table 2 - CO2 accumulation parameters
Table 2 - CO2 accumulation parameters Open
An analytical solution to the equations describing the flow of a buoyant fluid released into a porous medium below a horizontal impermeable boundary is used to model the growth of CO2 accumulations beneath thin mudstone beds in the Utsira …
View article: Fault seal controls on security of CO2 storage in aquifers
Fault seal controls on security of CO2 storage in aquifers Open
Structural traps for engineered storage of CO2 usually rely on a component of fault seal. In assessing the performance risk of storage sites, the conditions under which natural CO2 and CO2/hydrocarbon mixtures are retained by faults is poo…