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Method for Determining the Fluid/Pressure Distribution of Hydrocarbon Reservoirs from 4D Seismic Data
Method for Determining the Fluid/Pressure Distribution of Hydrocarbon Reservoirs from 4D Seismic Data
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机译:从4D地震数据确定油气藏流体压力分布的方法
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摘要
A method including analyzing seismic data relating to a producing hydrocarbon reservoir is disclosed. The seismic data includes first and second sets of seismic data obtained at different times. An interval composed substantially of hard rock is identified in the hydrocarbon reservoir. 4D seismic attributes for the region are calculated. Rock physics relationships are applied to seismic data related to the interval according to the permeability associated therewith. A fluid saturation change or a pressure change of the interval is inferred based on outputs of the first or second sets of rock physics relationships and the calculated 4D attributes for the interval. The inferred fluid saturation change or pressure change of the interval is outputted.
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