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A kind of preparation method of visual artificial core model

An artificial core and core technology, applied in the field of visualized artificial core model and its preparation, can solve the problems of high production cost and low simulation degree of artificial visual model, and achieve the effect of overcoming high production cost

Inactive Publication Date: 2017-08-15
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low simulation degree and high production cost of existing artificial visualization models, the present invention provides a visualization artificial model and its preparation method

Method used

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  • A kind of preparation method of visual artificial core model
  • A kind of preparation method of visual artificial core model
  • A kind of preparation method of visual artificial core model

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Embodiment Construction

[0022] The visualized artificial core model consists of two parts, the permeable layer and the matrix, where the function of the permeable layer is the window for liquid seepage and placement, and the matrix part provides the attachment and support carrier for the permeable layer. Visual artificial model preparation steps:

[0023] (1) Quartz sand and cement are mixed evenly, respectively put into steel molds, pressurized, dried, and then cut into rectangles. The appearance size of the core is: height × width × length = 3cm × 6cm × 12cm; the core is formed by infiltration The layer (permeability Kg=1000mD~50000mD) and the matrix (permeability Kg≤0.1mD) are composed of two parts, both of which are made of a mixture of quartz sand and epoxy resin cement after pressing, and the quartz sand particles used in the permeable layer are relatively coarse (40 mesh to 100 mesh), lower cement content (5% to 8%), finer quartz sand particles (270 mesh to 350 mesh) and higher cement content ...

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Abstract

A visualized artificial core model and a preparation method thereof. The model core is composed of a permeable layer and a matrix. The core is made of a mixture of quartz sand and epoxy resin cement after pressing; the process steps of model production: 1. Mix the quartz sand and cement evenly, pressurize and bake in the mold dry, and then cut it into a rectangular shape; 2. Grind the surface of the core penetration layer to keep its thickness at 3mm; 3. Prepare the cement epoxy resin, and apply it evenly to the surface of the transparent glass sheet after the cement thickens and before curing , put the glued side of the glass sheet down in the middle of the core permeable layer, and wait for the cement to solidify; 4. Install the gate seat on the surface of the core permeable layer; The rest of the surface; 6 sealing treatment, waiting for the cement to cure. The permeability of the core permeable layer is 1000mD-50000mD, and the permeability of the matrix is ​​lower than 1mD.

Description

technical field [0001] The invention relates to a visualized rock core model used for the research on the seepage mechanism of oil field chemical displacement agent and the turning mechanism of profile control agent, and belongs to a visualized artificial rock core model and a preparation method thereof. Background technique [0002] In the process of oilfield development, chemical oil displacement agents and profile control agents play a very important role in improving the effect of water flooding development and enhancing oil recovery. There are often many products of oil displacement agents and profile control agents with certain functions. , which requires product optimization. The basis for product selection is its seepage characteristics in reservoir cores, that is, core displacement experiments are required. At present, due to the limitation of the source and specifications of natural cores, and the high cost of coring natural cores, domestic research institutions m...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 卢祥国谢坤韩大伟孙学法潘赫刘义刚张云宝
Owner NORTHEAST GASOLINEEUM UNIV
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