Interferometric Synthetic Aperture Radar (InSAR) measurements provide accurate, large-scale estimates of displacements within material overlying a producing reservoir. Such deformation proves useful in deducing spatial and temporal changes in reservoir fluid pressure. Starting from the pressure field we estimate the diffusive travel times, and then, as the solution of a linear inverse problem, the effective permeability of the reservoir. We incorporate inequality constraints into the inversion for volume change, under the assumption that the production only results in fluid volume decreases, and we find that the inequality constraints improve the resolution by roughly 30 to 40%. We apply the formulation to subsidence in the material overlying a thin gas production zone at the Krechba field in Algeria.
Skip Nav Destination
Fluid Pressure Arrival Time Tomography: Estimation And Assessment In the Presence of Inequality Constraints, With an Application to Production At the Krechba Field, Algeria
F. Novali
F. Novali
TRE-Tele- Rilevamento Europa
Search for other works by this author on:
Paper presented at the 2009 SEG Annual Meeting, Houston, Texas, October 2009.
Paper Number:
SEG-2009-3879
Published:
October 25 2009
Citation
Rucci, A., Vasco, D.W., and F. Novali. "Fluid Pressure Arrival Time Tomography: Estimation And Assessment In the Presence of Inequality Constraints, With an Application to Production At the Krechba Field, Algeria." Paper presented at the 2009 SEG Annual Meeting, Houston, Texas, October 2009.
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$9.00
Advertisement
4
Views
Advertisement
Suggested Reading
Advertisement