Efficient sampling device of organic-matter-rich mudstone section

Abstract

The invention discloses an efficient sampling device of an organic matter-rich mudstone section. The device comprises a base, an annular pedestal, a sample placing assembly, a supporting arm and a connecting arm. The sample placing assembly is arranged in the middle of the base and used for placing an original rock sample to be sampled, the annular pedestal is further fixed to the base, the supporting arm is fixed to one side of the annular pedestal, and the connecting arm is connected to the supporting arm in an up-down moving mode; a sampling assembly is arranged at the other end of the connecting arm through a mounting base, a sampling end of the sampling assembly is cylindrical, and a columnar sample can be separated from an original rock sample by driving the sampling end to rotate sothat subsequent mechanical testing is facilitated; and the annular pedestal is further provided with a plurality of sets of flexible clamping assemblies, the flexible clamping assemblies can flexiblypress the original rock sample downwards from the upper portion of the original rock sample, the original rock sample can be kept in the state that the original rock sample is jointly clamped by theflexible clamping assemblies and the sample placing assembly, and stability of the original rock sample in a sampling process is improved.

Description

technical field [0001] The invention relates to the technical field of rock mass sampling, in particular to an efficient sampling device for organic-rich mudstone sections. Background technique [0002] In the process of mechanical research on the organic-rich mudstone section, it is necessary to sample the original rock sample to make it conform to the size of the mechanical test sample, and the mudstone is a kind of weakly consolidated clay formed by a moderate degree of epigenesis Strongly consolidated rocks will hydrate and disintegrate when exposed to water. During the sampling process, it is necessary to clean up the original debris generated during sampling, otherwise it will affect its overall integrity. In addition, due to the original rock If the shape of the sample is irregular, the stable clamping of the original rock sample becomes the top priority. Otherwise, during the sampling process, the original rock sample shakes, which will cause the drilled cylindrical ...

AI Technical Summary

Problems solved by technology

[0002] In the process of mechanical research on the organic-rich mudstone section, it is necessary to take samples from the original rock samples so as to make them conform to the size of the mechanical test specimens, while the mudstone It is a kind of weakly consolidated clay that forms a strongly consolidated rock after a moderate degree of epigenesis. It will hydrate and disintegrate when it encounters water. During the sampling process, it is necessary to clean up the debris generated during the original sampling.

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