8 October 2015

A permanently installed SeisMovie™ system was deployed at Schoonebeek oil field in The Netherlands to monitor steam injection in one of the patterns. Qualitatively, the 4D data has given us unprecedented insight into the lateral extent and temporal evolution of the steam front. We attempted to invert directly for steam thickness but the limited areal extent of the system (narrow swath) resulted in a sub-optimally imaged stack that did not match the synthetic data generated from the reservoir model (i.e., we could not “close-the-loop”). Instead, we compared forward modelled data generated from a history matched reservoir model to 4D synthetic and observed time lapse seismic attributes and concluded that we see a slow vertical steam chest growth of approximately 1.7cm/day over a 7 month period.

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