Gravity gradient data joint inversion method

A gravity gradient and data combination technology, which is applied in image data processing, electrical digital data processing, special data processing applications, etc., can solve problems such as out-of-focus, excessive bottom depth, and poor imaging effect at the bottom of deep objects, and achieve improved Resolution, the effect of improving the accuracy of results
CN112199859AActive Publication Date: 2021-01-08NORTHEASTERN UNIV
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEASTERN UNIV
Publication Date
2021-01-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a gravity gradient data joint inversion method, relates to the technical field of geophysical inversion, and aims to introduce a gradient depth weighting function, physical property constraints based on pair / index transformation and other methods on the basis of focusing inversion in order to solve the problems of insufficient spatial resolution and the like of gravity gradient data inversion at present. Six components are combined in the full-tensor gradient data, and three-dimensional density inversion is achieved by using a nonlinear conjugate gradient method. Meanwhile, in order to improve the visualization effect and operability of inversion, a software platform with a visualization function is developed on the basis of Python language, PyQt, Matplotlib and other toolkits as proposed inversion methods, and the distinguishing capability of near geologic bodies and the longitudinal space imaging capability of target bodies are effectively improved. A softwareplatform and a development method thereof have the advantages of being easy to use, practical and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of geophysical inversion, in particular to a method for joint inversion of gravity gradient data. Background technique

[0002] Three-dimensional inversion using gravity exploration data can obtain the density distribution of subsurface space, which is a common interpretation method in geological exploration. Compared with the gravity anomaly data, the signal-to-noise ratio of the gravity gradient data is higher, especially the full tensor gradient data contains more geological information, and the joint inversion using multiple gravity gradient data is conducive to improving the current vertical potential field data. The lack of poor spatial resolution will help to further improve the ability to distinguish adjacent geological bodies.

[0003] However, due to the multi-solution nature of the inversion, it is necessary to introduce constraints or prior information to improve the uniqueness of the solution i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More