Monitoring Sleipner CO2 Injection with Combined Surface Seismic and Gravity Data

2008 ◽  
Author(s):  
O. Eiken ◽  
H. Alnes ◽  
J. Lippard
Keyword(s):  
Gravity Data ◽  
Co2 Injection

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

2017 ◽  
Vol 5 (2) ◽  
pp. T243-T257 ◽  
Author(s):  
Martin Landrø ◽  
Mark Zumberge
Keyword(s):  
Gravity Data ◽  
Time Lapse ◽  
Co2 Injection ◽  
Injection Point ◽  
Amplitude Variation With Offset ◽  
Seismic Method ◽  
Seismic Amplitude ◽  
Gravity Measurements ◽  
Measured Time ◽  
Best Fit

We have developed a calibrated, simple time-lapse seismic method for estimating saturation changes from the [Formula: see text]-storage project at Sleipner offshore Norway. This seismic method works well to map changes when [Formula: see text] is migrating laterally away from the injection point. However, it is challenging to detect changes occurring below [Formula: see text] layers that have already been charged by some [Formula: see text]. Not only is this partly caused by the seismic shadow effects, but also by the fact that the velocity sensitivity for [Formula: see text] 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.

Principal facts for about 16,000 gravity stations in the Nevada Test Site and vicinity, Part C: Gravity data on diskette

1989 ◽  
Author(s):  
Reid N. Harris ◽  
D.A. Ponce ◽  
D.L. Healey ◽  
H.W. Oliver
Keyword(s):  
Gravity Data ◽  
Test Site ◽  
Nevada Test Site ◽  
Part C

Principal facts and base station descriptions for gravity data compiled for the Santa Ana 1 degree by 2 degrees Quadrangle, California

1993 ◽  
Author(s):  
R.F. Sikora ◽  
V.E. Langenheim ◽  
Shawn Biehler ◽  
L.A. Beyer ◽  
R.H. Chapman
Keyword(s):  
Gravity Data ◽  
Base Station ◽  
Santa Ana

Possible CO2 injection in aquifers below Venice

2005 ◽  
Vol 9 (5-6) ◽  
pp. 809-816
Author(s):  
Bernahard A Schrefler ◽  
Cesare Bonacina
Keyword(s):  
Co2 Injection

Modelling Medium-Depth CO2 Injection at the Svelvik CO2 Field Laboratory in Norway

2019 ◽  
Author(s):  
Alv-Arne Grimstad ◽  
Anja Sundal ◽  
Klaus Falk Hagby ◽  
Cathrine Ringstad
Keyword(s):  
Co2 Injection ◽  
Field Laboratory
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