Method and device for measuring volume and density of irregular rock sample

An irregular and volumetric technology, applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve problems such as measurement errors, achieve high measurement accuracy, improve measurement accuracy, and good gradation

Pending Publication Date: 2021-06-18
科吉思石油技术咨询(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem of measurement errors caused by the expansion of certain components in the sample to be tested by water when the existing measurement method is used, the present invention provides a method and device for measuring the volume and density of irregular rock samples, which can avoid certain components of the sample to be tested. Some components swell with water, and the measurement accuracy is high

Method used

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  • Method and device for measuring volume and density of irregular rock sample
  • Method and device for measuring volume and density of irregular rock sample

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Experimental program
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Embodiment 1

[0041] like figure 1 A device for measuring the volume and density of irregular rock samples is shown, which includes a vibration device, a container 2, a weighing device, and solid particles 3. During the experiment, the vibrating device was placed on the operating table 1, and a support frame 11 was placed on the operating table 1. The support frame 11 was provided with a container stopper 12 and a funnel holder 13, and the funnel holder 13 was placed above the container stopper 12. The funnel 41 is placed on the funnel holder 13, and a layer of filter screen 42 is placed inside the funnel. The mesh number of the filter can be selected according to the specific experimental situation. The container 2 is placed in a tray 21, and the tray 21 is placed above the vibrating device.

[0042] Its measurement method refers to figure 2 , including the following specific steps:

[0043] Measure the volume V of the container 0 ;

[0044] Vibrate the container and fill the contai...

Embodiment 2

[0049] Based on the above-mentioned embodiment, this embodiment discloses a specific implementation manner. figure 1 measuring device to measure. Container 2 is made of a conical flask or a pycnometer, and a glass bottle body with a high flatness of the bottle mouth is used, and the bottle mouth is further polished with a polishing machine. The container 2 in this embodiment is a conical flask, and the solid particles are quartz sand as an example. The density of the selected solid particles for filling should be as close as possible to the density of the sample to be tested, or slightly heavier than that of the sample to be tested, in order to reduce the gravitational differentiation during vibration and allow fine-grained solid particles to enter the voids of the sample to be tested. For measuring natural rock samples, it is recommended to use pure quartz particles that have been sorted and uniform in size.

[0050] Cover the Erlenmeyer flask with a cover glass 5 and weigh...

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Abstract

The invention discloses a method and a device for measuring the volume and the density of an irregular rock sample. The method comprises the following steps: measuring the volume V0 of a container; vibrating and filling the container with solid particles, wherein the particle size of the solid particles is smaller than one tenth of the particle size of the to-be-measured sample, the overall weight of the container is measured, and the density [rho]q of the solid particles is calculated; emptying the container, loading a to-be-measured sample into the container, measuring the weight, vibrating, adding solid particles until the bottle is full, and weighing; calculating the weight and volume of the added solid particles; and calculating the volume and density of the to-be-measured sample. Some components in the to-be-measured sample can be prevented from swelling when encountering water, and the measurement precision is high.

Description

technical field [0001] The invention belongs to the technical field of geological rock sample detection, and in particular relates to a method and a device for measuring the volume and density of irregular rock samples. Background technique [0002] The density measurement of irregular objects is generally based on Archimedes' law. The volume is measured first, and then the density is calculated. For example, for a single rock sample or multiple rock samples with irregular shapes, the sample is immersed in a liquid of known density. , to see the volume of liquid displaced. However, using the above method, there are some problems in the measurement of some rock samples. For example, in the process of shale gas exploration, when the drilling cuttings samples are measured, after the shale is immersed in water, the muddy components in it will meet water. expansion, resulting in large errors in measurement. SUMMARY OF THE INVENTION [0003] In order to solve the problem that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/02
CPCG01N9/02G01N2009/024
Inventor 明治良王格平刘义
Owner 科吉思石油技术咨询(北京)有限公司
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