XRD clay test sample loading device

Abstract

The invention discloses an XRD clay test sample loading device, which comprises a sample loading module, the sample loading module comprises an outer sample disc, an inner sample disc and an elastic connecting piece, the inner part of the outer sample disc is provided with a hollow part, and the inner sample disc is embedded into the hollow part of the outer sample disc through the elastic connecting piece; the device also comprises a sample pressing module; the sample pressing module comprises a fixing ring, a first annular ring and a second annular ring, the fixing ring can sleeve the outerpart of the outer sample disc, the first annular ring is fixedly connected to the top surface of the fixing ring, the first annular ring sleeves the outer part of the second annular ring, and the axial relative positions of the first annular ring and the second annular ring can be adjusted. According to the invention, the relative height of the inner sample disc and the outer sample is adjusted; the test clay sheet is fixed in the inner sample disc, the problem that the test clay sheet slides after sample loading is solved, meanwhile, the relative height of the test clay sheet and the outer sample disc is adjusted through the sample pressing module, the influence of the thickness of a test clay film on a test result is eliminated, and the mineral distinguishing accuracy is improved.

Description

technical field [0001] The invention belongs to the field of oil and gas exploration, and in particular relates to an XRD clay testing sample loading device. Background technique [0002] When the XRD (X-ray diffraction, X-ray diffraction) instrument equipped with an automatic sampler is used for XRD clay testing, it cannot directly install the glass sheet covered with clay film on the sample stage for testing like traditional instruments. Special sample loading device and method Only after the clay tablet is installed, can the instrument automatically inject samples for testing. [0003] The existing sample loading device adopts a circular hollow sample tray, and a disc with adjustable height is embedded in the hollow part, which is used to load the square glass sheet covered with clay film, and then the height of the disc is adjusted so that the surface of the glass sheet is in line with the sample. The plate surface height is consistent and then tested. Due to the lack ...

AI Technical Summary

Problems solved by technology

Due to the lack of fixtures in this method, the square glass piece is easy to slide in the circular sample pan, which may affect the test results; in addition, the thickness of the clay film will cause a slight shift in the diffraction peak position, which will also affect the test results, especially When there is kaolinite or chlorite, and one of the minerals is dominant, since the diffraction peaks of the two minerals are adjacent to each other, a slight displacement will increase the difficulty of distinguishing the diffraction peak positions, which will have a negative impact on data processing.

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