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There is a strong need in our industry for advancing the understanding and applications of multiple geophysical techniques for time-lapse problems, such as for [Formula: see text]S sequestration and enhanced oil recovery (EOR) projects. Currently, monitoring efforts for such activities are dominated largely by 4D seismic, and there are numerous developments and successful applications throughout the geophysical literature to justify this state of affair (e.g., Lumley, 2010). The primary advantage of 4D seismic for these endeavors is that it can provide a high-resolution imaging tool that allows better reservoir management decisions and improved production efficiency.

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In this paper, we present a multi-faceted feasibility study for monitoring fluid movement in a reservoir at various injection times using 4D micro-gravity method. Simulations are performed using a representation of the Delhi Field, LA, constructed by directly integrating seismic and well data. We then analyze anomaly amplitudes and inversion performance with respect to data noise. Results demonstrate a strong likelihood of imaging bulk fluid movement over the life of the project, as well as at early stages of CO 2 injection into the thicker down-dip sequences within the reservoir. In contrast, there is a limited ability to recover fluid contact movement in the thinner up-dip regions of the reservoir.