HTI medium quasi-longitudinal wave forward modeling simulation method, device, storage medium and processor

A forward modeling and medium technology, applied in the field of geophysical exploration, can solve the problems of seismic wave forward modeling process that needs to be optimized, and achieve the effects of eliminating slow longitudinal wave interference, high computing efficiency, and low memory usage

Active Publication Date: 2022-07-12
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0006] However, in related technologies, the seismic wave forward modeling process based on HTI media still needs to be optimized

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  • HTI medium quasi-longitudinal wave forward modeling simulation method, device, storage medium and processor
  • HTI medium quasi-longitudinal wave forward modeling simulation method, device, storage medium and processor
  • HTI medium quasi-longitudinal wave forward modeling simulation method, device, storage medium and processor

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Embodiment Construction

[0052] The specific implementations of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

[0053] In the related art, for the forward modeling of the wave equation of anisotropic medium, the elastic wave equation is commonly used for simulation. However, although the elastic wave equation can be used to simulate abundant seismic information, the amount of calculation is large.

[0054] Therefore, Alkhalifah (1998) proposed to introduce a pseudo-acoustic approximation of transversely isotropic (TI) media by setting the shear velocity along the symmetry axis to zero, that is, quasi-longitudinal wave (also known as qP wave) approximation equation simulation. Compared with the forwar...

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Abstract

Embodiments of the present invention provide an HTI medium quasi-longitudinal wave forward modeling method, device, storage medium and processor, which belong to the technical field of geophysical exploration. The method includes: deriving an HTI medium quasi-longitudinal wave integral equation; The absorption boundary is used to set boundary conditions for the HTI medium quasi-longitudinal wave integral equation; the forward modeling of the HTI medium quasi-longitudinal wave integral equation after setting the boundary conditions is performed by using high-order finite difference.

Description

technical field [0001] The invention relates to the technical field of geophysical prospecting, in particular to a method, device, storage medium and processor for quasi-longitudinal wave forward modeling of HTI medium. Background technique [0002] Seismic wave forward modeling is mainly to obtain the propagation law of seismic waves in known underground geological models, including propagation time, path, energy and so on. Through forward modeling, the kinematics and dynamic characteristics of seismic waves propagating in complex media can be correctly understood, and the characteristics of reflected seismic wave fields generated by underground geological structures can be accurately analyzed. [0003] In related technologies, wave equations are often used for forward modeling of seismic waves, and the wave equation method is the most important method for numerical simulation of seismic wave propagation in increasingly complex geological structures. [0004] In reality, t...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01V1/30
CPCG01V1/30G01V1/307G01V2210/673G01V2210/63Y02E60/00
Inventor吴国忱张豪印兴耀宗兆云曹丹平张佳佳
OwnerCHINA UNIV OF PETROLEUM (EAST CHINA)