Sand bodies of different combination types are developed in region Y,Affected by reservoir lithology,physical property,heterogeneity and other factors,The relationship between gas and water is complicated.The reservoir in the low part of the gas-rich channel structure is also relatively developed.But the gas-water transition zone is difficult to predict accurately.In response to the above problems,Taking advantage of seismic data in the time domain and frequency domain,Carry out high-precision pre-stack direct inversion of elastic parameters,Based on petrophysical modeling of tight clastic rocks,Combining various elastic parameters to achieve joint inversion of petrophysical parameters,Reduce the parameter coupling effect,Improve the accuracy of parameter prediction.It provides favorable support for efficient development of channel sand body of Shaximiao Formation in Y area of central Sichuan.
维普
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