Seismic wave speed dispersion and attenuation prediction method, device, equipment and medium

• Main Authors: LI JINPENG, ZONG ZHAOYUN
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention provides a seismic wave speed dispersion and attenuation prediction method, device and equipment and a medium, and relates to the field of seismic rock physics. The method comprises the following steps: acquiring logging data and/or laboratory measurement data of seismic rocks; based on the logging data and/or the laboratory measurement data, determining a corrected wet skeleton bulk modulus and a shear modulus of the seismic rock; based on the corrected wet skeleton volume modulus and shear modulus, determining a saturated rock equivalent plane wave modulus by using a boundary average dynamic equivalent medium model; and determining the longitudinal wave velocity and attenuation of the seismic wave based on the equivalent plane wave modulus of the saturated rock. According to the embodiment of the invention, the seismic wave dispersion and attenuation in the seismic frequency band can be reasonably and stably predicted without determining the type of the microfracture in advance, the constructe