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Gas sampling device, and corresponding method of rock stratum sample and gas sample

A gas sampling and rock formation technology, applied in the field of geological exploration, can solve problems such as inability to extract gas samples, inability to verify each other to improve the accuracy of exploration analysis results, and inability to establish a corresponding relationship between rock formation samples and gas samples

Pending Publication Date: 2021-03-19
佛山市高明区科企生产力促进中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing drilling equipment cannot extract gas samples while obtaining rock formation samples. If rock formation samples are collected first, and then gas samples are collected, the problem that the corresponding relationship between rock formation samples and gas samples cannot be established is prone to occur, and it is impossible to pass the information of the two samples. Mutual verification improves the accuracy of exploration analysis results

Method used

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  • Gas sampling device, and corresponding method of rock stratum sample and gas sample
  • Gas sampling device, and corresponding method of rock stratum sample and gas sample
  • Gas sampling device, and corresponding method of rock stratum sample and gas sample

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 , convex 2 and image 3 As shown, this embodiment provides a gas sampling device, which is composed of a housing 1, a gas collection bag 2 and an air pump 3; the housing 1 is sleeved on the drill pipe 4, and the gas collection bag 2 is detachably accommodated in the housing 1 Inside, the input end of the air pump 3 communicates with the cavity of the rock formation sampler 5 through the air guide tube 6, and the output end of the air pump 3 communicates with the one-way inlet valve 21 arranged on the gas collection bag 2, forming a cavity formed by the rock formation sampler 5. The gas path that supplies gas to the gas collection bag 2 can fill the gas sample that enters the cavity of the rock formation sampler 5 together with the rock formation sample 8 into the gas collection bag 2 during the process of obtaining the rock formation sample 8 .

[0035] Due to the poor airtightness of the cavity of the conventional rock formation sampler 5, it is impos...

Embodiment 2

[0042] Such as figure 1 , convex 2 and image 3 As shown, on the basis of Embodiment 1, this embodiment proposes a method for establishing a corresponding relationship between rock formation samples and gas samples, including a drill bit 7, a rock formation sampler 5, a drill pipe 4 and a gas sampling device; the gas sampling device For the gas sampling device in Example 1, the specific method is as follows:

[0043] The drill pipe 4 pushes the rock formation sampler 5 and the drill bit 7 arranged at the bottom of the rock formation sampler 5 drills to the formation, and the gas sampling device is mounted on the drill pipe 4 and communicates with the cavity of the rock formation sampler 5; during the drilling process, The drill bit 7 sends the separated rock sample 8 into the cavity of the rock sampler 5, and the gas accompanying the rock sample 8 is filled into the gas collection bag 2 by the air pump 3 for preservation; after the drill pipe 4 is recovered, the rock sample 8...

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Abstract

The invention discloses a gas sampling device, and a corresponding method of a rock stratum sample and a gas sample. The gas sampling device comprises a shell arranged on a drill rod in a sleeving mode, a gas collecting bag detachably arranged in the shell and a gas pump. The input end of the gas pump is communicated with a rock stratum sampler cavity, and the output end of the gas pump is communicated with the gas collecting bag. The gas sampling device is additionally arranged on existing drilling equipment, the rock stratum sample and the gas sample can be obtained at the same time, particularly after the two samples are collected at the same time, associated information is recorded and stored, a stable corresponding relation is established, and the situation that an analysis result isaffected due to wrong comparison of the rock stratum sample and the gas sample in the analysis process is avoided.

Description

technical field [0001] The invention belongs to the field of geological exploration, and in particular relates to a gas sampling device and a corresponding method for rock formation samples and gas samples. Background technique [0002] The main purpose of geological prospecting is to obtain samples to analyze the stratum structure, determine whether there are mineral deposits or whether it is suitable to build buildings. Existing drilling equipment adopts a structure in which a drill bit, a strata sampler and a drill pipe are connected in sequence. The drill pipe is pushed into the strata sampler and the drill bit to drill downward. As the drilling equipment retracts the drill pipe, the rock formation sample and the rock formation sampler are taken out of the ground together, and the information of the rock formation sample is saved and recorded. [0003] There is also a large amount of gas in the formation structure, such as natural gas and petroleum gas as mineral resour...

Claims

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Application Information

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IPC IPC(8): G01N1/08G01N1/24
CPCG01N1/08G01N1/2294
Inventor 刘世峰
Owner 佛山市高明区科企生产力促进中心
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