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Core wafer visual model and preparation method and experimental method thereof

An experimental method and thin-section technology, which are applied in teaching models, preparation of test samples, analysis of suspensions and porous materials, etc. Effect

Inactive Publication Date: 2018-07-03
PETROCHINA CO LTD
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the existing core model is not convenient for experimental use

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  • Core wafer visual model and preparation method and experimental method thereof

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] A visualization model of rock core slices, including a glass top cover 5, a core slice 6 and a glass bottom plate 7 stacked sequentially from top to bottom, the glass top cover 5 contains two through holes vertically through, and a An annular flow passage inlet 2 is arranged outside the said through hole, and an annular flow passage outlet 4 is arranged outside the other said through hole; Between the adhesive layer 8, such as figure 1 shown.

[0033] In this embodiment, the glass upper cover plate 5, the rock core slice 6 and the glass bottom plate 7 are all rectangular, and the lengths of the glass upper cover plate 5, the rock core slice 6 and the glass base plate 7 are the same, an...

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Abstract

The invention provides a core wafer visual model and a preparation method and an experimental method thereof. The core wafer visual model comprises a glass upper cover plate (5), a core wafer (6) anda glass bottom plate (7) which are laminated successively from top to bottom, wherein the glass upper cover plate (5) contains two through holes in the vertical direction, one of the through holes isexternallyprovided withan annular runner inlet (2) and the other one is externally provided with an annular runner outlet (4). An adhesive layer (8) for sealing the space between the glass upper coverplate (5) and the glass bottom plate (7) is arranged around the core wafer visual model. The core wafer visual model has the characteristics of being simple in structure, convenient to process and manufacture and convenient to use, and is suitable for precisely measuring complex flowing in the core to understand the inner permeability rule of the core and improve the oilfield exploitation efficiency.

Description

technical field [0001] The invention relates to the field of oil and gas exploitation experimental equipment, in particular to a visualization model of rock core slices, a preparation method of the visualization model of rock core slices, and an experimental method of the visualization model of rock core slices. Background technique [0002] In low-permeability reservoirs, the rock pores are small and the structure is complex. How to accurately measure the complex flow inside the core is of great significance to understand the seepage law inside the core and improve the oilfield production efficiency. At present, the main method for measuring the seepage capacity of the core is the conventional core permeability measurement method, that is, the core is placed in the holder of the high-pressure core flow tester, and the brine is squeezed in from the lower end of the core and flowed out from the upper end under the action of the compression pump. The pressure difference across...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N15/08G09B25/06
CPCG01N1/28G01N1/286G01N15/082G01N15/0826G01N2001/2873G09B25/06
Inventor 郝鹏飞何枫张锡文
Owner PETROCHINA CO LTD