CORE SAMPLING BORING SYSTEM AND CORE SAMPLING BORING METHOD

Japanese Patent JP2006070619

A

To provide a core sampling boring method superior in deoxidation efficiency more than a conventional oxygen free water generating system, and including inert gas of the optional mixing ratio in response to a sampling-boring advancing condition.

This core sampling boring system has a suspended bubble water generator 100 for generating suspended bubble water of an oxygen free state, and an excavation core sampling device for excavating a core by using the bubble water generated by the bubble water generator 100. The suspended bubble water generator 100 has a first gas-liquid mixer 108 for generating the suspended bubble water by mixing the inert gas with water, a gas-liquid separator 112 for generating oxygen free water by separating gas from the suspended bubble water generated by the first gas-liquid mixer 108, and a second gas-liquid mixer 126 for generating the suspended bubble water by mixing the inert gas with the oxygen free water generated by the gas-liquid separator 112.

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ARAKI KUNIO
OSHIKA AKIFUMI
IWATA MASARU
SEKO ICHIRO

JP2004257299A

March 16, 2006

September 03, 2004

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CHUO KAIHATSU

E21B25/00; E02D1/04

JP2004077054A	2004-03-11
JPS62131998A	1987-06-15
JP2002295169A	2002-10-09
JP2002301305A	2002-10-15

Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeo Takeuchi

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