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Underground automatic soil sampling device for collapsible loess exploratory well

A technology of collapsible loess and soil borrowing device, applied in sampling devices and other directions, can solve problems such as well collapse and casualties of workers

Pending Publication Date: 2021-04-30
河南中核五院研究设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned related technologies, the inventor believes that there are the following defects. When the soil quality is relatively soft during the exploration well sampling process, the well body is prone to collapse, resulting in frequent safety accidents such as casualties of staff

Method used

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  • Underground automatic soil sampling device for collapsible loess exploratory well
  • Underground automatic soil sampling device for collapsible loess exploratory well
  • Underground automatic soil sampling device for collapsible loess exploratory well

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Embodiment Construction

[0042] The following is attached Figure 1-13 The application is described in further detail.

[0043] The embodiment of the present application discloses an automatic downhole soil fetching device for collapsible loess exploration wells. refer to figure 1 , the downhole automatic soil fetching device for collapsible loess exploration wells and includes a hoisting device 1 and a sampling device 2, the hoisting device 1 is fixedly connected to the sampling device 2, the hoisting device 1 includes a gantry frame 10, an unwinding device 11 and a suspension rope 12, and the gantry The frame 10 is erected at the wellhead, the unwinding device 11 is installed on the gantry frame 10, the suspension rope 12 is arranged on the unwinding device 11, and one end of the suspension rope 12 is connected with the sampling device 2, and the sampling device 2 is used for sampling operations. The winding device 11 can release the suspension rope 12, so that the sampling device 2 is put into th...

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PUM

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Abstract

The invention relates to the field of exploratory well sampling, in particular to an underground automatic soil sampling device for a collapsible loess exploratory well, which comprises a sampling device. The sampling device comprises a protective shell, a sampling structure and a push-out structure, the sampling structure and the push-out structure are arranged in the protective shell, the sampling structure is arranged on the push-out structure. An operation window for the sampling structure to extend out of the protective shell is formed in the protective shell, the sampling structure comprises a connecting seat, a sampling knife group and a driving assembly for pushing out the driving knife group, the driving assembly is mounted on the connecting seat, and the sampling knife group is mounted on the driving assembly. The exploratory well sampling device has the effect of improving the safety of exploratory well sampling operation.

Description

technical field [0001] The present application relates to the field of exploratory well sampling, in particular to an automatic downhole earth-taking device for collapsible loess exploratory wells. Background technique [0002] In engineering and scientific research work, because soil samples taken mechanically will disturb the soil, in order to obtain the real physical and mechanical indicators of the soil, it is usually necessary to take samples from exploratory wells in the field. Exploratory wells are a means (method) of geological surveys. Exploratory well sampling has little effect on soil disturbance, and its test data is relatively more accurate. The current operation of exploratory well sampling is basically to take out soil samples by manually digging into the well. Collapsible loess is a special kind of soil. Collapsible loess refers to the soil that undergoes significant additional deformation due to the structural damage of the soil after soaking under the acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 马英明刘淑清张团飞李磊代亚锋田亚萍尹新帅高玉增
Owner 河南中核五院研究设计有限公司