Method for reservoir quantitative interpretation with rock physics template
A petrophysical and quantitative interpretation technology, applied in geophysical measurement, measurement equipment, seismic signal processing, etc., can solve the problems of seismic data risk, limit the application and interpretation of seismic inversion results, and achieve the effect of reducing multi-solution
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[0060] Example 1
[0061] This embodiment is an implementation example of the present invention for actual logging data and prestack inversion data in a certain area. The method steps of the present invention are as follows:
[0062] 1. First, test and analyze the tight sandstone reservoir rock samples to obtain the input data of the petrophysical forward modeling model. Including elastic modulus, density and pore flattening of sandstone and mudstone.
[0063] 2. For tight sandstone, use dry rock approximation and Gassmann formula to establish the rock physical model of tight sandstone, and calculate the transformation curve of velocity and density with rock porosity, water saturation and shale content, and realize rock physics forward calculation.
[0064]3. On the basis of step 2, ① first set the shale content as a fixed value, and given the water saturation, the change curve of velocity and density with porosity can be calculated. The curves of velocity and density with p...
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