A rock core clamping device for visualized researching of a porous medium dynamic percolation process with a micro-CT device

Abstract

Industrial micro-CT devices are widely applied in the field of crude oil extraction, but because micro-CT devices is limited in size and present commonly used rock core clamping devices are overlargein size, complex in structure, and the like, scanning researching on a dynamic multi-phase displacement process in a rock core test piece cannot be performed with the micro-CT devices. The invention provides a rock core clamping device for visualized researching of a porous medium dynamic percolation process with a micro-CT device. Through the clamping device, the micro-CT device can perform on-line observation and analysis on a dynamic percolation process in a porous medium effectively. A main body includes a clamping unit and a displacement unit, is formed by a PEEK material having low X raypenetration loss and AB glue, and can tolerate certain pressure. The clamping device can be put, based on a miniaturization design, into a micro-CT device testing cavity to perform on-line testing ofa dynamic multi-phase displacement process in a rock core test piece in the cavity, and after the test is finished, the clamping device can be used again only by simply changing a sleeve.

Description

technical field [0001] The invention relates to the field of testing equipment for dynamic seepage process in porous media, in particular to a rock core clamping device used for micro-CT equipment to visualize and study the dynamic seepage process of porous media. Background technique [0002] Today, industrial micro-CT machines have been widely used in the field of crude oil extraction. In the research on the process of flooding and recovery under formation conditions, the micro-CT machine is used to scan the core sample, and with the help of image processing software, the internal structure of the core and the saturation distribution information of each phase during the multi-phase fluid displacement process can be obtained . However, due to the limitation of the size of the micro-CT machine itself, the existing commonly used core holding equipment has problems such as oversized and complex structures, and it is difficult to use the micro-CT machine to scan and study the ...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the size of the micro-CT machine itself, the commonly used rock core holding equipment has problems such as excessive size and complex structure. It is difficult to use the micro-CT machine to scan and study the dynamic multi-phase displacement process in the core sample.

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