CN211477782U - Artificial crack rock core preparation system - Google Patents
Artificial crack rock core preparation system Download PDFInfo
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- CN211477782U CN211477782U CN201921431097.6U CN201921431097U CN211477782U CN 211477782 U CN211477782 U CN 211477782U CN 201921431097 U CN201921431097 U CN 201921431097U CN 211477782 U CN211477782 U CN 211477782U
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- rock core
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Abstract
The utility model relates to a preparation system of artificial crack rock core, which comprises a three-dimensional scanner and a computer for data acquisition; the laser etching instrument is used for manufacturing a crack mold; a rock core briquetting machine and crack mould for rock core preparation. The utility model has the advantages that the pertinence is strong, the stratum rock core can be simulated to the maximum extent under the condition of the composition and the content of rock minerals of the stratum rock of the known target rock core, and the real cracks of the rock core can be reduced, so that the experimental conditions are as close as possible to the actual conditions; the same crack core can be repeatedly manufactured, the same core can be repeatedly manufactured according to actual requirements, and the requirement of an experiment on a single variable is met; the method is simple and convenient to operate, and the novel artificial rock core can be prepared without transforming the conventional artificial rock core device.
Description
Technical Field
The utility model relates to a petroleum and natural gas artificial rock core preparation field, especially an artificial crack rock core preparation system.
Background
Because the natural rock core is difficult to obtain and high in cost, a large amount of artificial rock cores are needed when relevant tests such as a rock core flow experiment are carried out in a laboratory. The unconventional oil and gas reservoirs, particularly fractured compact sandstone oil and gas reservoirs, generally have the characteristics of low pore permeability, high capillary force, high clay mineral content, small pore throat, serious heterogeneity, micro-fracture development and the like, and the conventional artificial core has a material far away from a natural core and cannot represent real stratum rock; in addition, manual seam making treatment is mostly needed in the experiment process of the rock core, the treated manual seam is obviously different from a natural seam, the manual seam after seam making of each rock core cannot be guaranteed to be the same, a plurality of experiment errors can be caused, and the final evaluation result is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a technique and supporting device that easy and simple to handle, with strong points, can provide high quality artificial rock core for a series of experiments that the laboratory goes on to unconventional oil gas reservoir especially compact sandstone oil gas reservoir.
The purpose of the utility model is realized through the following technical scheme: a preparation system of artificial fracture rock core is characterized in that: the system comprises a three-dimensional scanner and a computer, wherein the three-dimensional scanner is used for data acquisition; the laser etching instrument is used for manufacturing a crack mold; a rock core briquetting machine and crack mould for rock core preparation.
And the computer is respectively electrically connected with the three-dimensional scanner and the laser etching instrument. Corresponding software and graphic processing software matched with the three-dimensional scanner are installed in the computer, the three-dimensional scanner is controlled to scan natural core cracks, and a data model capable of accurately representing the core crack surfaces is obtained after scanning.
And further, the device also comprises a metal sheet, the laser etching instrument scans natural core cracks according to the three-dimensional scanner to obtain a data model capable of accurately representing the core crack surfaces, the metal sheet is etched, and the crack mould is the metal sheet with the shape of cracks etched by the laser etching instrument.
The fracture shape of the fracture mold is the shape of a core fracture scanned by a three-dimensional scanner.
The utility model has the advantages of it is following:
1. obtaining a data model capable of accurately representing the fracture surface of the rock core after scanning;
2. the manufactured rock core crack die can be repeatedly used, a plurality of identical rock cores are manufactured, and the single variable principle in the experimental process is ensured;
3. the method is simple and convenient to operate, and the novel artificial crack core can be manufactured without transforming the existing artificial core device.
Drawings
Fig. 1 is a schematic view of the working process of the present invention;
fig. 2 is a three-dimensional view of a compression mold.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1, a preparation system for artificial fracture core is characterized in that: the system comprises a three-dimensional scanner and a computer, wherein the three-dimensional scanner is used for data acquisition; the laser etching instrument is used for manufacturing a crack mold; a rock core briquetting machine and crack mould for rock core preparation.
And the computer is respectively electrically connected with the three-dimensional scanner and the laser etching instrument. Corresponding software and graphic processing software matched with the three-dimensional scanner are installed in the computer, the three-dimensional scanner is controlled to scan natural core cracks, and a data model accurately representing the core crack surfaces is obtained after scanning.
And further, the device also comprises a metal sheet, the laser etching instrument scans natural core cracks according to the three-dimensional scanner to obtain a data model capable of accurately representing the core crack surfaces, the metal sheet is etched, and the crack mould is the metal sheet with the shape of cracks etched by the laser etching instrument.
The fracture shape of the fracture mold is the shape of a core fracture scanned by a three-dimensional scanner.
The first embodiment is as follows: the data acquisition part comprises a three-dimensional scanner and a computer, and is used for scanning a target rock core crack surface and acquiring a three-dimensional digital model of the crack surface; the crack mold manufacturing part comprises a laser etching instrument, a computer and a metal sheet and is used for processing the obtained three-dimensional digital model of the crack surface through image processing software, etching the processed model on the metal sheet by using the laser etching instrument and manufacturing a crack mold capable of restoring the crack surface of the target rock core; and the core manufacturing part is a core pressing machine and is used for putting the obtained fracture mould and the raw materials into a pressing container together, and taking out the mould after the core is pressed to obtain the artificial fracture core with the height similar to that of the target core.
The length and width of a metal sheet for manufacturing the fracture mould are determined by the length and width of a fracture surface of a target rock core, and the thickness is determined by the opening of the fracture of the target rock core; etching can be carried out on two sides of the same metal sheet or one side of two metal sheets with the same size according to actual conditions to manufacture a crack mold; the selected metal sheet material has the characteristics of easy etching and high strength, can meet the requirements of easy manufacture and high precision of a crack die, can ensure that the die cannot deform in the process of pressing a rock core, and meets the requirement of repeatedly manufacturing the same artificial crack rock core; the composition and proportion of the raw materials for preparing the core are determined by the components of the target core, and the real state of the target core is restored to the maximum extent.
Example two: different from the first embodiment, when the original crack surface three-dimensional digital model is processed by the image processing software, the structure of the three-dimensional model can be adjusted and changed according to the requirements of a user, so that the etched crack surface mold meets the requirements of the user. For example, when no natural fracture core exists, the artificial fracture core can be used as a target core, and the three-dimensional digital model of the original fracture surface of the artificial fracture core is properly processed, so that the fracture pressed by the manufactured fracture mold is closer to the natural fracture; or when a user needs to perform certain experiments on certain special structures of the cracks, the corresponding crack mould can be manufactured by adjusting the three-dimensional digital model of the crack surface, and the corresponding artificial crack core can be pressed.
Claims (3)
1. A preparation system of artificial fracture rock core is characterized in that: the system comprises a three-dimensional scanner and a computer, wherein the three-dimensional scanner is used for data acquisition; the laser etching instrument is used for manufacturing a crack mold; the computer is respectively and electrically connected with the three-dimensional scanner and the laser etching instrument.
2. The artificial fracture core preparation system according to claim 1, wherein: the crack mould is a metal sheet with a crack shape etched by a laser etching instrument.
3. The artificial fracture core preparation system according to claim 2, wherein: the fracture shape of the fracture mold is the shape of a core fracture scanned by a three-dimensional scanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431097.6U CN211477782U (en) | 2019-08-30 | 2019-08-30 | Artificial crack rock core preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431097.6U CN211477782U (en) | 2019-08-30 | 2019-08-30 | Artificial crack rock core preparation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211477782U true CN211477782U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921431097.6U Expired - Fee Related CN211477782U (en) | 2019-08-30 | 2019-08-30 | Artificial crack rock core preparation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN211477782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114330095A (en) * | 2021-11-20 | 2022-04-12 | 广西科学院 | Artificial granite intelligent manufacturing method based on LBM-DEM aggregate grading interface characteristic regulation and control |
-
2019
- 2019-08-30 CN CN201921431097.6U patent/CN211477782U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114330095A (en) * | 2021-11-20 | 2022-04-12 | 广西科学院 | Artificial granite intelligent manufacturing method based on LBM-DEM aggregate grading interface characteristic regulation and control |
| CN114330095B (en) * | 2021-11-20 | 2022-06-21 | 广西科学院 | Artificial granite intelligent manufacturing method based on LBM-DEM aggregate grading interface characteristic regulation and control |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20210830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |