Abstract

ABSTRACT Laboratory measurements of seismic velocities and attenuation in fluid saturated rock samples strongly suggest that detectable changes in these properties are anticipated upon steam flooding of heavy oil reservoirs, or during other EOR operations. Such changes could be monitored with seismic array of receivers and transmitters situated around the region of enhanced recovery. The array will yield seismic wave travel times and amplitudes and their temporal and spatial changes. Inverting these measured values, it is possible to determine the distribution of velocities and Q within the reservoir. These distributions can uniquely be interpreted in terms of the distribution of a steam phase in the reservoir, using laboratory determined seismic response of reservoir rock samples.

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