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Stability condition numerical solution calculating method and system for standard linear solid model

A technology of stability conditions and solid models, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problems of low efficiency and high cost of numerical simulation

Active Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the defects of high cost and low numerical simulation efficiency caused by the simulation method of full three-dimensional and full wave field in the prior art

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  • Stability condition numerical solution calculating method and system for standard linear solid model
  • Stability condition numerical solution calculating method and system for standard linear solid model
  • Stability condition numerical solution calculating method and system for standard linear solid model

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Embodiment Construction

[0067] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0068] In order to solve the defects of high cost and low simulation efficiency in the existing technology of viscoelastic medium numerical simulation of the standard linear solid model using the full three-dimensional, full wave field simulation method, the embodiment of the present invention provides a standard linear solid model The calculation method of the numerical solution of the stability condition of...

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Abstract

The present invention discloses a stability condition numerical solution calculating method and system for a standard linear solid model. The method comprises: constructing the standard linear solid model; determining a state transfer matrix of stability conditions of model finite difference solution; acquiring a plurality of groups of parameter sets, and enabling each group of parameter sets to comprise an elastic coefficient of a first elastomer, an elastic coefficient of a second elastomer, a viscosity coefficient of a damper, a frequency and a medium density; under set spacial differential accuracy and spacial mesh step, sequentially utilizing each group of parameter sets and carrying out calculation by a computer to enable a module of a feature value of the state transfer matrix to be smaller than a time step of 1; and determining the time step as a numerical solution. According to the stability condition numerical solution calculating method and system disclosed by the present invention, the time step which is more aligned with standard linear solid model numerical simulation of an actual viscoelastic medium can be quantitatively determined; after the time step is determined, numerical simulation based on the standard linear solid viscoelastic medium can be guaranteed to be successfully completed; the efficiency is ensured; the cost is saved; and finally, geological problems in an actual seismic exploration are solved by applying a simulated result.

Description

technical field [0001] The invention relates to the technical field of basic seismic exploration applications, in particular to a calculation method and system for a numerical solution of a stability condition of a finite difference solution of a standard linear solid model. Background technique [0002] Seismic numerical simulation is an important basis for seismic exploration and seismology, and it is also an important tool for understanding the propagation of seismic waves in complex media. Its role runs through the entire seismic acquisition, processing and interpretation. With the deepening of seismic exploration and development, conventional elastic medium theory is difficult to meet the actual medium demand. When the seismic wave propagates in the actual formation, the energy and phase change, which directly affects the resolution of the seismic data. The actual formation shows certain viscoelastic properties. Therefore, the numerical simulation of the seismic wave in...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 肖云飞姜宇东白俊雨
Owner CHINA PETROLEUM & CHEM CORP
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