Method, device and computer device for decoupling anisotropic elastic wave

An anisotropic elastic wave decoupling device applied to a seismic wave field, comprising:

• a first determination unit configured to determine a set of Thomsen parameters included in an anisotropic model based on a received to-be-decomposed wave field decomposition request, wherein, the to-be-decomposed wave field decomposition request comprises a to-be-decomposed wave field;
• a transformation unit configured to transform the set of Thomsen parameters to obtain a set of initial elastic parameters;
• a separation unit configured to perform S-wave and P-wave velocities separation processing for the set of initial elastic parameters to obtain a set of target P-wave elastic parameters and a set of target S-wave elastic parameters;
• and
• a processing unit configured to substitute the set of target P-wave elastic parameters and the set of target S-wave elastic parameters into the anisotropic model to process the to-be-decomposed wave field and obtain a target P-wave matrix and a target S-wave matrix.

A computer device comprising:

• a memory, a processor and a computer program stored in the memory and executable on the processor, wherein an anisotropic elastic wave decoupling method is implemented when the processor executes the computer program, wherein the anisotropic elastic wave decoupling method comprises:
• determining a set of Thomsen parameters included in an anisotropic model based on a received to-be-decomposed wave field decomposition request, wherein, the to-be-decomposed wave field decomposition request comprises a to-be-decomposed wave field;
• transforming the set of Thomsen parameters to obtain a set of initial elastic parameters;
• performing S-wave and P-wave velocities separation processing for the set of initial elastic parameters to obtain a set of target P-wave elastic parameters and a set of target S-wave elastic parameters;
• and
• substituting the set of target P-wave elastic parameters and the set of target S-wave elastic parameters into the anisotropic model to process the to-be-decomposed wave field and obtain a target P-wave matrix and a target S-wave matrix.