Title:
DURABILITY EVALUATION METHOD AND APPARATUS OF IMPROVEMENT BODY OR POROUS ROCK IN FLUID PERMEATION CONDITION
Document Type and Number:
Japanese Patent JP2021116520
Kind Code:
A
Abstract:
To provide a method and an apparatus suitable for an evaluation test of deterioration characteristics or durability of an improvement body, an artificial water stop layer, a water shield wall and a porous rock subjected to conditions of high water pressure and penetration flow in the improvement body, solidification sand, artificial sandstone, a dam, a tunnel and the like that are constructed in a reservoir and have permeability.SOLUTION: A specimen 1 is provided in a proof pressure constant temperature core cell to construct a pressure, temperature, and geochemical environment equivalent to a target stratum. A test fluid equivalent to or similar to an actual stratum fluid around a well is forcibly infiltrated into the specimen for a certain period of time. Thus, not only deterioration phenomenon of an improvement body due to ion elution into stratum water, but also physical deterioration and chemical deterioration at the time of production of underground fluid resources can be evaluated. Furthermore, time-series prediction of deterioration and an evaluation of durability are possible. In addition, by the above system, an environment having high pressure and penetration flow such as a dam and a tunnel can be reproduced, and deterioration of the improvement body and water stop layer due to penetration of groundwater can be evaluated.SELECTED DRAWING: Figure 2
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Inventors:
LIU YUCHEN
Application Number:
JP2020007937A
Publication Date:
August 10, 2021
Filing Date:
January 21, 2020
Export Citation:
Assignee:
JAPAN E&P INT CORP
International Classes:
E21C50/00; E21B47/00; G01N3/00; G01N3/04; G01N17/00
Attorney, Agent or Firm:
Uemura Takaaki