Eine Modellstudie über 4D Gravimetrie für Reservoir Überwachung

Translated title of the contribution: A model study on Time-lapse microgravity for reservoir monitoring

Christoph Georg Eichkitz

Research output: ThesisDiploma Thesis

Abstract

To monitor reservoir saturation normally time-lapse seismic is used. This means that the same seismic survey is measured at two times, the difference between the results indicate changes in reservoir properties. Time-lapse seismic is a time and money consuming procedure. An alternative or additive would be to use time-lapse microgravity to measure changes in reservoir saturation. Instead of a whole seismic line only one gravimeter has to be used. Time-lapse microgravity is a rather new method for reservoir monitoring and only a few case studies have been carried out. The aim of this thesis is to determine the possible use of time-lapse microgravity for reservoir monitoring, to determine whether it is even possible to detect such small changes in gravity with modern gravimeters and if surface or borehole gravity are better for monitoring a reservoir. For this purpose I created a software for two-dimensional gravity modelling, that is capable to calculate surface and borehole gravity. The software is used on some typical reservoir traps and the effect of saturation changes is observed.
Translated title of the contributionA model study on Time-lapse microgravity for reservoir monitoring
Original languageGerman
Supervisors/Advisors
  • Schön, Juergen, Supervisor (internal)
Award date16 Dec 2005
Publication statusPublished - 2005

Bibliographical note

embargoed until null

Keywords

  • microgravity time-lapse gravity reservoir monitoring

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