• Home
• Program
• Search
• Author Index
• Sponsors
• Committees
• Contact Us
• Tech Support

Session:

Posters

Abstract No.:

P-037

Title:

Distance based sensitivity analysis for join inversion of time-lapse and production data of Norne field

Author(s):

Amit Suman, Stanford University (US)
Tapan Mukerji, Stanford University (US)

Abstract:

Reservoir dynamic data plays an important role in reservoir characterization, management and monitoring. The dynamic data set includes production and time lapse seismic data. Production data is affected by the petrophysical properties of the reservoir rock. Thus it can be used in history matching process for updating the reservoir model. Time lapse seismic data can provide information on the dynamics of fluids in the reservoir based on the relation between variations of seismic signals and movement of hydrocarbons and changes in formation saturations and pressure. Movement of fluids and changes in pore pressure depends on the petrophysical properties of the reservoir rock. Thus reservoir monitoring by repeated seismic or time lapse surveys can help in reducing the uncertainties attached to reservoir models. Reservoir models, optimally constrained to seismic response as well as flow response can provide a better description of the reservoir and thus a more reliable forecast.
However joint inversion of time lapse seismic and production data is complex and challenging with spatial uncertainties at each step of the process. Thus it is necessary to rank the sensitive parameters both in reservoir simulator and as well as seismic simulator for a better joint inversion of time lapse seismic and production data. In this study Norne field data set is used to identify and rank the sensitive parameters for joint inversion. We have used distance methods to find out the sensitive parameters in joint inversion of production and time lapse seismic data. The production and seismic response of a reservoir model is analyzed in the metric space to rank the parameters of reservoir and seismic simulator.