• Development of a New Analytical Solution for Type Curves in Repeated Radial Tracer Tests Under Transient Flow Conditions

  • Heejun Suk1ㆍJize Piao1ㆍHongil Ahn2ㆍMinjune Yang3ㆍWeon Shik Han4*

  • 1Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Republic of Korea
    2Global Cooperation Center, Universal Environment Policy Institute, Heungandaero 427 gil, Anyang 14059, Republic of Koea
    3Department of Earth and Environmental Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu,
    Busan 48513, South Korea
    4Yonsei University, Departiment of Earth System Science, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea

  • 부정류 흐름 하에서 반복적인 발산 추적자 시험을 위한 표준 곡선의 새로운 수학적 해석해 개발

  • 석희준1ㆍ박길택1ㆍ안홍일2ㆍ양민준3ㆍ한원식4*

  • 1한국지질자원연구원
    2국제환경정책연구원
    3부경대학교
    4연세대학교

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Repeated tracer tests are often conducted to improve the accuracy of parameter estimation or are sometimes inevitably performed due to mechanical issues or human errors occurred during initial tracer tests. However, residual concentrations from preceding tracer tests can interfere with the injection concentrations of subsequent tests, potentially compromising accuracy of parameter estimation in those later tests. Additionally, repeated injections and interruptions can create transient flow conditions, which have not been adequately considered to date. In this study, a new analytical solution was developed to generate a type curve for repeated tracer tests under transient flow conditions. The solution was validated through numerical simulations. By using the proposed analytical solution, the residual concentration from preceding tracer tests can be effectively accounted for, enabling more accurate parameter estimation for subsequent tracer tests under transient flow conditions.


Keywords: Repeated tracer tests, Transient flow conditions, Parameter estimation, Analytical solution, Type curves

This Article

  • 2024; 29(5): 1-13

    Published on Oct 31, 2024

  • 10.7857/JSGE.2024.29.5.001
  • Received on Aug 2, 2024
  • Revised on Aug 12, 2024
  • Accepted on Aug 26, 2024

Correspondence to

  • Weon Shik Han

  • Yonsei University, Departiment of Earth System Science, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea

  • E-mail: hanw@yonsei.ac.kr