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Method and device for initial value filling of common grid cells in combined gravity, magnetic, electric and seismic inversion

A grid unit and joint inversion technology, applied in the field of comprehensive geophysical exploration, can solve the problems of low precision, time-consuming and inefficient, poor correlation, etc., and achieve the effect of enhancing correlation and high precision

Active Publication Date: 2021-08-27
CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for filling the initial value of the common grid unit in joint gravity, magnetic, electric and seismic inversion, so as to alleviate the artificial value assignment, low precision, poor correlation and low time consumption in the prior art effective technical issues

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  • Method and device for initial value filling of common grid cells in combined gravity, magnetic, electric and seismic inversion
  • Method and device for initial value filling of common grid cells in combined gravity, magnetic, electric and seismic inversion
  • Method and device for initial value filling of common grid cells in combined gravity, magnetic, electric and seismic inversion

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Embodiment 1

[0038] According to an embodiment of the present invention, an embodiment of an initial value filling method for a common grid cell in combined gravity, magnetic, electric and seismic inversion is provided. computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0039] figure 1 A flow chart of an initial value filling method for a common grid cell in joint inversion of gravity, magnetism, electric and seismic provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0040] Step S101, when there is a well drilling in the survey area, obtain well logging data, and perform target processing on the well logging data to obtain target well logging data for reflecting the physical characteristics of deep heat storage;

[0041] In the embodiment of the present in...

Embodiment 2

[0073] An embodiment of the present invention provides an initial value filling device for a common grid unit in joint gravity, magnetic, electric and seismic inversion. The method for filling the initial value of the common grid unit in the joint gravity, magnetic, electric and seismic inversion provided in the content, the following is a specific introduction to the initial value filling device for the common grid unit in the joint gravity, magnetic, electric and seismic inversion provided by the embodiment of the present invention.

[0074] Figure 11 It is a schematic structural diagram of an initial value filling device for a common grid unit in joint inversion of gravity, magnetism, electric and seismic provided by an embodiment of the present invention. Such as Figure 11 As shown, the initial value filling device for the joint inversion of gravity, magnetism, electric and seismic inversion of the common grid unit mainly includes: an acquisition processing unit 11, an ...

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Abstract

The present invention provides an initial value filling method and device for a common grid unit in combined gravity, magnetic, electric and seismic inversion, and relates to the technical field of comprehensive geophysical exploration, including: secondly, obtain the seismic data in the survey area, and then invert to obtain the seismic attribute data; then, establish the initial value estimation correlation model; after that, establish the initial inversion stratum based on the structural interpretation results of the seismic data grid model, and perform consistent grid processing on the initial inversion stratigraphic grid model and gravity, magnetoelectric observation data to obtain the common grid unit; finally, based on the initial value estimation correlation model, the The seismic attribute data is transformed into the initial values ​​of various geophysical methods, and the initial values ​​are filled into the common grid cells to complete the construction of the initial inversion model. The invention can realize rapid, high-precision and automatic filling of initial values.

Description

technical field [0001] The invention relates to the technical field of comprehensive geophysical exploration, in particular to a method and device for filling an initial value of a common grid unit in joint inversion of gravity, magnetism, electric and seismic. Background technique [0002] At present, the modeling method dominated by gravity, magnetic, electric and seismic joint inversion is still based on the early traditional theoretical modeling method, which not only needs to solve complex ultra-large-scale nonlinear equations, but also needs to make many assumptions, for example: the The original nonlinear model is simplified to a linear model, which greatly restricts the accuracy of joint inversion and the speed of iterative solution, especially in the case of insufficient or lacking prior knowledge (drilling and logging data) and model parameters (physical property test data) However, it is difficult for these inversion methods to adapt to complex and variable deep g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V11/00
CPCG01V1/282G01V11/00G01V11/007Y02A90/30
Inventor 付国强明圆圆解经宇文冬光郭建强谢兴隆李秋辰金显鹏孙银行宋健连晟王丹任政委郭淑君李凤哲周乐
Owner CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS