• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • Vis innførsel
  •   Hjem
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Estimating saturation and density changes caused by CO2 injection at Sleipner - Using time-lapse seismic amplitude-vartiation-with-offset and time-lapse gravity

Landrø, Martin; Zumberge, Mark A.
Journal article, Peer reviewed
Published version
Thumbnail
Åpne
Landrø-Zumberge-2017.pdf (4.611Mb)
Permanent lenke
http://hdl.handle.net/11250/2478294
Utgivelsesdato
2017
Metadata
Vis full innførsel
Samlinger
  • Institutt for geovitenskap og petroleum [1834]
  • Publikasjoner fra CRIStin - NTNU [19694]
Originalversjon
Interpretation. 2017, 5 (2), T243-T257.   10.1190/INT-2016-0120.1
Sammendrag
We have developed a calibrated, simple time-lapse seismic method for estimating saturation changes from the CO2CO2-storage project at Sleipner offshore Norway. This seismic method works well to map changes when CO2CO2 is migrating laterally away from the injection point. However, it is challenging to detect changes occurring below CO2CO2 layers that have already been charged by some CO2CO2. Not only is this partly caused by the seismic shadow effects, but also by the fact that the velocity sensitivity for CO2CO2 change in saturation from 0.3 to 1.0 is significantly less than saturation changes from zero to 0.3. To circumvent the seismic shadow zone problem, we combine the time-lapse seismic method with time-lapse gravity measurements. This is done by a simple forward modeling of gravity changes based on the seismically derived saturation changes, letting these saturation changes be scaled by an arbitrary constant and then by minimizing the least-squares error to obtain the best fit between the scaled saturation changes and the measured time-lapse gravity data. In this way, we are able to exploit the complementary properties of time-lapse seismic and gravity data.
Utgiver
Society of Exploration Geophysicists
Tidsskrift
Interpretation

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit