The next wave in reservoir monitoring will be the “instrumented oil field.” The defining concept is twofold. First, arrays of seismic and other geophysical sensors will be permanently deployed at or near the surface, and in boreholes, associated with a producing hydrocarbon reservoir. These permanent arrays will provide on-demand imaging capability of large-scale reservoir fluid flow. Second, injecting and producing wells will be instrumented with downhole sensors such as pressure, temperature, and saturation gauges to monitor small-scale fluid flow local to the wells. The data from these sensor arrays, coupled with advances in borehole completion technology, will allow fluid injection...

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