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Patent Searching and Data


Title:
TEST DEVICE FOR ROCK PERMEABILITY
Document Type and Number:
Japanese Patent JP2018035500
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a test device for rock permeability that enables water injection pressure to be adjusted in a short time lag, thereby enabling highly accurate data to be easily collected.SOLUTION: The test device for rock permeability is provided, comprising a packer 2 disposed in a test hole H drilled into a rock and partitioning a test section A inside the test hole, a rod 1 penetrating through the packer 2 and pressure-feeding test water into the test hole H, water injection pipe 6 inserted into the rod 1 and causing the test water to flow into the rod, a pump 7 for feeding the test water to the water injection pipe 6, and pressure detection means 5 for detecting pressure in the test section. Furthermore, an on/off valve 17 is provided at a tip of the water injection pipe 6, for closing the water injection pipe when pressure is below a preset pressure value and opening the water injection pipe when the pressure exceeds the preset pressure value for supplying the test water into the rod 1.SELECTED DRAWING: Figure 1

Inventors:
HORINOUCHI TOMIO
SATO MITSUO
HIRAYAMA NOBUYUKI
Application Number:
JP2016166421A
Publication Date:
March 08, 2018
Filing Date:
August 29, 2016
Export Citation:
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Assignee:
OYOKS CO LTD
International Classes:
E02D1/02; E21B33/12; E21B49/00
Attorney, Agent or Firm:
清水 千春