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Underground gas collecting drilling tool

A drilling tool and earth gas technology, applied in the field of gas sampling devices, can solve the problems of affecting the gas concentration and the damage of the static environment of the soil layer, etc.

Inactive Publication Date: 2006-12-27
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the diameter of the drill bit is larger than the outer diameter of the gas-collecting helical piece, and the drill bit has great damage to the static environment of the soil layer, and the gas in the soil is easy to overflow upward along the spiral drill pipe, which affects the analysis of the gas concentration in the soil

Method used

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  • Underground gas collecting drilling tool
  • Underground gas collecting drilling tool
  • Underground gas collecting drilling tool

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Embodiment Construction

[0015] figure 1 It is an overall schematic diagram of the present invention: the handle 1 assists people to manually drill the drill bit 4 into the soil, and the handle 1 and the drill rod 2 adopt image 3 Connect the male and female bayonet fittings shown. This connection method can make the drilling tool adapt to the collection needs of different depths. The deeper the collection, the more drill pipes are needed. The bayonet butt screw fixed reverse anti-falling technology is adopted, so that the drilling tool can maintain the tightness of the connection in the state of forward rotation or reverse rotation. It ensures that the drill pipe can be added without lifting the drill during the drilling process, so as to meet the sampling requirements of different depths. The bayonet butt joint screw fixation anti-falling off technology is applied to the butt joint of each component of the present invention. There is a through hole in the center of the drill rod 2, and a capillar...

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Abstract

The invention discloses a kind of telluric effluvium collection drilling tool which is manual and the sealing effect of soil doesn't destroy when the tool is reversed. The drill bit is taper structure and there is screw thread accreted out of it. The width of the screw thread is wider and wider from the needle to the trail. There is a small hole for collecting gas on the trail part's flank of the drill bit and filter screen and spider filter protector are set out of the hole. The drill bit and closing cap spiral groupware adopt abutting joint screw fastness technique. And the there is also screw thread accreted out of the closing cap spiral groupware.

Description

Technical field [0001] The invention relates to a sampling device for testing or analyzing materials, especially gases, by means of determining their chemical properties. Background technique [0002] Chinese patent No. 99210908.6 discloses a vacuum auger for gas extraction. The advantage of this patented technology is that the existing drilling tool structure is used, and the inside of the existing drilling tool is modified, and the gas extraction parts are installed, so that the simultaneous operation of soil drilling and gas extraction is realized. The accuracy of gas sampling in soil is relatively improved. However, the diameter of the drill bit is larger than the outer diameter of the gas-collecting helical piece, and the drill bit greatly damages the static environment of the soil layer, and the gas in the soil easily overflows upwards along the auger rod, which affects the analysis of the gas concentration in the soil. Contents of the invention [0003] In order t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/08G01N1/22E21B49/00
Inventor 任春李吉鹏夏响华李武
Owner CHINA PETROLEUM & CHEM CORP
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