4D gravity monitoring of fluid movement at Delhi Field, LA: A feasibility study with seismic and well data

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 CO2 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.