Four-dimensional resistivity inversion method based on data dynamic control time smooth constraint

A smooth constraint and time control technology, applied in electrical/magnetic exploration, re-radiation of sound waves, radio wave measurement systems, etc. degree, capture the effect in time

Active Publication Date: 2018-12-14
SHANDONG UNIV
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Problems solved by technology

These time regularization and space regularization techniques reduce inversion artifacts, but time regularization may make the time domain of a model too stable, which is not conducive to discovering instantaneous changes

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  • Four-dimensional resistivity inversion method based on data dynamic control time smooth constraint
  • Four-dimensional resistivity inversion method based on data dynamic control time smooth constraint
  • Four-dimensional resistivity inversion method based on data dynamic control time smooth constraint

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0040]It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combination...

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Abstract

The invention discloses a four-dimensional resistivity inversion method based on data dynamic control time smooth constraint. The resistance acquired in the collection process constitutes a data set;the time for collecting a complete data set and the time required for one-time inversion interpretation are defined; the collected complete data set is divided into a plurality of parts; the split small parts of data are recombined to obtain a recombined data set; a data response factor is defined to construct a target function of four-dimensional resistivity inversion for dynamically adjusting the time smoothness; and a suitable time smooth factor is selected according to the data response factor, to construct a four-dimensional resistivity inversion equation for dynamically adjusting the time smoothness, solving a model parameter increment vector, and obtaining a final inversion result after iterative inversion.

Description

technical field [0001] The invention relates to a four-dimensional resistivity inversion method based on data dynamic control time smooth constraints. Background technique [0002] Four-dimensional resistivity tomography can be used to characterize the dynamic processes taking place on the Earth's surface. The technique captures time-dependent changes in conductivity to invert and resolve spatial property changes associated with the monitored process. In recent years, it has been widely used in environmental monitoring, engineering construction, hydrogeophysical research and other fields, and it is a good means of fine monitoring. [0003] The current monitoring system can remotely start and control data collection by installing permanent on-site sensors and telemetry technology, and highly automate data transmission and processing. The temporal resolution can be significantly improved compared to manual repeated measurements and manual control of permanent facilities. Ho...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38
CPCG01V3/38
Inventor 刘征宇庞永昊王宁刘沈华刘斌范克睿王静徐辉张崇民
Owner SHANDONG UNIV
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