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Air reverse circulation for polar region ice layer

A technology of air reverse circulation and air circulation, which is applied in the direction of ice drilling, earthwork drilling, drilling equipment, etc., can solve the problems of unsuitable for large-scale promotion and application in polar regions, high drilling labor intensity, high power consumption, etc., and achieve saving drilling The effect of increasing the auxiliary time, reducing the burden of support, and shortening the auxiliary time

Active Publication Date: 2018-11-23
JILIN UNIV
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AI Technical Summary

Problems solved by technology

However, due to the conventional air reverse circulation drilling method that requires the use of drilling rigs and double-walled drill pipes, the equipment has a heavy weight, complex structure, and high power consumption, which puts forward higher requirements for logistics support and professional quality of personnel, and it is necessary to continuously add double-walled drill pipes. Drill pipes are labor-intensive and unsuitable for large-scale application in polar regions

Method used

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  • Air reverse circulation for polar region ice layer
  • Air reverse circulation for polar region ice layer
  • Air reverse circulation for polar region ice layer

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Embodiment Construction

[0027] see Figure 1 to Figure 6 Shown:

[0028] The polar ice layer air reverse circulation rapid drilling system provided by the present invention includes an air compressor 1, an air circulation pipeline 2, an air reverse circulation double-tube drilling tool 3 and an ice debris and ice core collection device 4, wherein the air compressor 1 is connected with the air The air intake pipe 12 of the circulation pipeline 2 is connected, and the air compressor 1 provides the circulation air with pressure for the air circulation pipeline 2. The core collection device 4 is connected at the outlet of the air circulation pipeline 2 for collecting the ice cores and ice debris drilled by the air reverse circulation double-tube drilling tool 3 .

[0029] There are two air compressors 1, and the two air compressors 1 are connected in series. A gas cooling device 5 and a gas drying device 6 are provided on the pipeline connected between the air compressor 1 and the air circulation pipeli...

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Abstract

The invention discloses an air reverse circulation for a polar region ice layer. The system comprises an air compressor, an air circulating pipeline, an air reverse circulation double-pipe drilling tool and an ice flake and core collecting device. The air compressor is connected with an air inlet pipe of the air circulating pipeline, the air compressor provides circulating air with pressure for the air circulating pipeline, the air reverse circulation double-pipe drilling tool is assembled at the lower end of the air circulating pipeline, and the ice flake and core collecting device is connected to an outlet of the air circulating pipeline and used for collecting ice flakes and cores drilled out by the air reverse circulation double-pipe drilling tool. The system has the advantages that the whole system is compact, light, easy to operate, high in reliability, high in drilling speed, short in auxiliary time and suitable for coring or comprehensive drilling in the polar environment.

Description

technical field [0001] The invention relates to a reverse circulation rapid drilling system, in particular to a polar ice reverse circulation rapid drilling system. Background technique [0002] At present, the temperature in the polar regions is low and far away from human pollution. Compared with other climate proxy indicators, it has the characteristics of large amount of information, good fidelity, high time resolution, large time scale range, and wide distribution area. It is the best place to study global climate change. one of the key areas. Obtaining ancient ice cores is of great significance for reconstructing the historical evolution of the earth and predicting global climate change. Rapid collection of ice core samples or rapid acquisition of boreholes to monitor ice sheet temperature, pressure, ice flow characteristics, geomagnetic characteristics, etc. have become an important means of current international ice core research. [0003] However, affected by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B4/02E21B49/00
CPCE21B4/02E21B7/008E21B49/00
Inventor 曹品鲁曹宏宇陈宝义戚波赵齐陈卓曹金娥贺文博
Owner JILIN UNIV
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