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Method of surveying a geologic gas reservoir by employing stratigraphic inversion on seismic data
Method of surveying a geologic gas reservoir by employing stratigraphic inversion on seismic data
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机译:利用地层反演对地震资料进行地质气藏勘测的方法
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摘要
The method involves constructing a cube having seismic wave impedance before gas injection. An anamorphose function is defined by a function comprising a positive lower limit (B1), an upper limit (B4) and an identity interval defined between other two limits (B2, B3). Values of the limits are associated with corresponding cells of the cube. Another seismic wave impedance of the cube is associated with each cell after gas injection, by applying the anamorphose function on the latter impedance. Carbon dioxide gas is injected inside a subsurface zone, by comparing the impedances with one another.
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