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Artificial core, manufacturing method and instrument of artificial core

A technology of artificial core and manufacturing method, applied in the field of artificial core, to achieve the effect of eliminating different core pore structures and eliminating adverse effects

Active Publication Date: 2012-04-11
PETROCHINA CO LTD
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Problems solved by technology

[0005] The present invention aims to provide a method for making artificial rock cores, an apparatus for making artificial rock cores, and artificial rock cores, so as to solve the problem of the different pore structures of each artificial rock cores in the existing experimental research, which causes problems in the development of oil and gas fields such as core displacement experiments. came the larger impact of the problem

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  • Artificial core, manufacturing method and instrument of artificial core
  • Artificial core, manufacturing method and instrument of artificial core
  • Artificial core, manufacturing method and instrument of artificial core

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Embodiment Construction

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0041] The present invention proposes a manufacturing method of an artificial rock core, which is also called a three-dimensional printing method of a high-melting point medium. The manufacturing method of the artificial rock core includes, for example: steps A, B, C, and D.

[0042] A. Select the medium as the material for making the artificial core, usually choose a medium close to the material of the natural core, for example, the medium is glass particles or sodium silicate powder or quartz, so that the artificial core obtained is closer to the natural core , the present invention selects described medium as glass particle or sodium silicate powder, and its fusing point is about 1300 degrees, relatively speaking, fusing point ...

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Abstract

The invention provides a manufacturing method of an artificial core, a manufacturing instrument of the artificial core and the artificial core. The manufacturing method of the artificial core comprises the following steps of: A, selecting a medium as a material for manufacturing the artificial core; B, taking a natural core with a multi-layer pore structure as a core sample, layering the natural core according to a set layer distance, manufacturing each layer core structure chart of the core sample according to each layer structure of the core sample; C, melting the medium, printing the molten medium on an object stage one layer by one layer according to each layer pore structure chart, wherein the object stage and the molten medium cannot be fused with each other; D, after finishing the printing, taking down the solid medium on the object stage after cooling and condensing the medium on the object stage. The manufacturing instrument of the artificial core comprises a heating device, a nozzle, an object stage and a control module. The artificial core is manufactured by the above manufacturing method.

Description

technical field [0001] The invention relates to the technical field of petroleum development experiments, in particular to an artificial rock core, a manufacturing method and an instrument for the artificial rock core. Background technique [0002] In the experimental research of oil and gas field development, the core pore structure has always been valued by researchers, but its uncontrollable characteristics also restrict the accuracy and depth of related research. [0003] Core displacement experiments are one of the most basic and widely used research methods. The research purposes include evaluating the displacement efficiency of displacement agents, the effect of displacement methods on ultimate recovery, and the seepage characteristics of fluids in cores, etc. During the core displacement experiment, it is necessary to use multiple cores to repeat the experiment to verify the experimental conclusion. When selecting the core, it is necessary to select the core with the...

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Application Information

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IPC IPC(8): G01N1/44
Inventor 秦积舜陈兴隆马德胜李实张可
Owner PETROCHINA CO LTD
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