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Shale CT image reconstruction method and device

A CT image, shale technology, applied in the field of image processing

Active Publication Date: 2019-03-19
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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The invention provides a shale CT image reconstruction method and device

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  • Shale CT image reconstruction method and device
  • Shale CT image reconstruction method and device
  • Shale CT image reconstruction method and device

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Embodiment Construction

[0133] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0134] See attached figure 1 , figure 1 The main steps of a shale CT image reconstruction method in this embodiment are exemplarily shown. Such as figure 1 As shown, in this embodiment, image reconstruction can be performed on the shale CT image according to the following steps, specifically:

[0135] Step S101: Acquire a CT image d of a shale sample.

[0136] Specifically, in this embodiment, a synchrotron radiation source can be used to generate an energy-adjustable, monochromatic and naturally parallel X-ray beam, and irradiate the shale sample to obtain a CT image d of the shale sample. In a preferred implementation of this embodiment...

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Abstract

The invention relates to the technical field of image processing, particularly provides a shale CT image reconstruction method and device, and aims to solve the technical problem of how to accuratelyacquire microstructure information of a shale sample in a case of not damaging the shale sample. For the purpose, the method in the invention comprises the following steps: acquiring a CT image of theshale sample; and carrying out iterative calculation on a preset regularization model according to the acquired CT image to obtain a reconstructed image of the shale sample. At the same time, the device in the invention can execute all the steps in the above-mentioned method. According to the technical solution of the invention, high-resolution reconstruction can be carried out on the shale CT image, and reconstruction artifacts can be eliminated.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a shale CT image reconstruction method and device. Background technique [0002] Shale gas refers to unconventional natural gas that occurs in organic-rich shale-dominated reservoir rock series. It is continuously generated biochemical gas, thermogenic gas or a mixture of both, and can exist in natural fractures in a free state. and in pores. Based on this, how to accurately obtain the microstructure information of shale is a key issue for shale gas exploration. At present, the observation method of shale microstructure is mainly the surface observation method of shale, such as the observation method based on optical microscope or scanning microscope. However, this method cannot obtain 3D detailed information of shale samples, and it will also cause damage to shale samples. Contents of the invention [0003] In order to solve the above-mentioned problems in the prio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00
CPCG06T11/006G06T11/008G06T2211/416G06T2211/424
Inventor 邹安祺王彦飞
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI