Joint interpretation of time-lapse gravity data and production data for a gas reservoir
Time-lapse gravity is commonly used to monitor fluid movement and is especially useful when monitoring water encroachment in a gas reservoir. Although time-lapse gravity has considerable resolution, it is beneficial to integrate different types of data to complement the time-lapse gravity interpretation. When monitoring water-influx in a reservoir, an increase in water yield in some wells may indicate increasing saturation values and suggest areas of fluid movement and density contrast change with time. These data can complement the time-lapse gravity analysis, the question to address is how to ...