The gas fields of North of Paria, offshore eastern Venezuela, present a unique opportunity for amplitude variations with offset (AVO) characterization of reservoirs containing different fluids: gas‐condensate, gas (methane) and water (brine). AVO studies for two of the wells in the area, one with gas‐condensate and the other with gas (methane) saturated reservoirs, show interesting results. Water sands and a fluid contact (condensate‐water) are present in one of these wells, thus providing a control point on brine‐saturated properties. The reservoirs in the second well consist of sands highly saturated with mathane. Clear differences in AVO response exist between hydrocarbon‐saturated reservoirs and those containing brine. However, it is also interesting that “subtle” but noticeable differences can be interpreted between condensate‐and methane‐saturated sands. These differences are attributed to differences in both in‐situ fluid density and compressibility, and rock frame properties.
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