Title:
圧力パルス崩壊試験における不確実性減少技法
Document Type and Number:
Japanese Patent JP5544443
Kind Code:
B2
Abstract:
A method of reducing uncertainty, which exactly finds the hydraulic conductivity and the specific storativity of a rock sample in pressure pulse-decay measurement. Axial and confining pressures are applied to the rock sample, and upstream and downstream reservoirs are connected to the rock sample. Coordinate values representing minimum values of a contour of a graph of an objective function, in which the hydraulic conductivity and the specific storativity obtained through the pressure pulse-decay measurement scheme to apply pressure pulses from the outside are expressed in horizontal and vertical axes are found from the graph. The coordinate values are set as the hydraulic conductivity and the specific storativity of the rock sample. Graphs of objective functions obtained by repeating the pressure pulse-decay measurement while changing boundary conditions are shown in overlapped, thereby reducing the uncertainty of the hydraulic conductivity and the specific storativity of the rock sample.
Inventors:
Son インソン
Kim Game ジョン
Kim Game ジョン
Application Number:
JP2013187289A
Publication Date:
July 09, 2014
Filing Date:
September 10, 2013
Export Citation:
Assignee:
Korea Institute オブ Geoscience And Mineral Resaw tin
International Classes:
G01N33/24; E02D1/02
Attorney, Agent or Firm:
Kenji Sugimura
Makoto Fukuo
Takeo Yoshizawa
Makoto Fukuo
Takeo Yoshizawa