• A Study on Feasibility of Hydraulic Fracturing with Evaluation of Yield Variance by Rock Types
  • Kim Jin-Hoon;Kim Hyoung-Soo;Suk Hejun;
  • Korea Water Resources Corporation, Korea Institute of Water and Environment;Korea Water Resources Corporation, Korea Institute of Water and Environment;Korea Water Resources Corporation, Korea Institute of Water and Environment;
  • 암종별 산출량 변화 평가를 통한 수압파쇄기법의 타당성 연구
  • 김진훈;김형수;석희준;
  • 한국수자원공사 수자원연구원;한국수자원공사 수자원연구원;한국수자원공사 수자원연구원;
Abstract
Hydraulic fracturing is guaranteed to create or enlarge fracture, so the hydraulically created fracture acts as a conduit in the rock, allowing the groundwater to flow more freely through the fracture system. In a recent study, it showed that 12 wells where hydraulic fracturing was performed increased well production. However, it was estimated not to present representation by rock type due to not enough wells. Therefore, this study was performed to clarify the application of hydraulic fracturing at 19 water wells. Rocks were divided into igneous rocks (9 sites), metamorphic rocks (4 sites), and sedimentary rocks (6 sites) to evaluate representative features. As a result, the average of well yield increases $93.4\%$ in the igneous rocks, $103\%$ in the metamorphic rocks, and $42.2\%$ in the sedimentary rocks. Accordingly, hydraulic fracturing presented in this study provides an effective method for increasing well production

수압파쇄 기법은 암반 내에 파쇄를 수압을 이용하여 생성하거나 확장시키는 기술로서, 이렇게 생성된 파쇄대는 지반 안에서의 흐름의 통로 역할을 하며, 지하수가 자유롭게 흐르도록 한다. 본 연구에서는 최근에 수압파쇄 기법이 수행된 12개 관정 결과를 바탕으로 암종별 특성을 분명하게 파악하기 위하여 7개의 관정에서 추가로 수압파쇄를 실시하였다. 총 19개소에 대해 화성암(9개소), 변성암(4개소), 퇴적암(6개소)으로 대분하여 암종에 따른 수압파쇄의 가능성을 평가하였으며, 시험결과 화성암은 평균 $93.4\%$, 변성암은 평균 $103\%$, 퇴적암은 $42.2\%$의 산출량 증가를 보였다. 본 연구에서 수행된 수압파쇄의 적용은 암종별로 차이를 보이지만, 전반적으로 관정의 산출량을 증대시키는 효과적인 방법임을 확인하였다.

Keywords: Hydraulic fracturing;Well production increase;

Keywords: 수압파쇄;산출량 증대;

References
  • 1. 건설교통부, 한국수자원공사, 2003, 지하수조사연보, p. 301-327
  •  
  • 2. 대한광산지질학회, 1992, 지하수자원의 활용과 보전, 제8회 공동학술강연회, 대한지질학회, p. 114
  •  
  • 3. 백건하, 김형수, 윤윤영, 전재수, 2003, 수압파쇄기법에 의한 우물 산출성 증대효과 검증, 2003년 한국지하수토양환경학회 총회 및 춘계학술발표회, 한국지하수토양환경학회, 경원대학교, p. 283-286
  •  
  • 4. 서울특별시, 1996, 지반조사편람, p. 84-87
  •  
  • 5. 정창희, 1986, 지질학개론, 박영사, p. 585-589
  •  
  • 6. 한정상, 안종성, 윤윤영, 김형수, 백건하, 2002, 인공수압파쇄기법에 의한 지하수 양수량 증대, 지하수토양환경, 7(2), 23-33
  •  
  • 7. ASTM, 1997, Standard Test Method for Determination of the In-Situ Stress in Rock Using the Hydraulic Fracturing Method, ASTM, PA, USA, p. 6-11
  •  
  • 8. Baski, H., 1987, Hydrofracturing of water wells, Water Well Journal, 41(6), p. 34-35
  •  
  • 9. Clark, J.B., 1949, A hydraulic process for increasing the productivity of wells, Petroleum Transactions of the AIME, 186, p. 1-8
  •  
  • 10. Gale, J.E., 1982, Assessing the Permeability Characteristics of Fractured Rock, Geological Society of America, Special Paper, 189, 163-181
  •  
  • 11. Hubbert, M.K., 1972, Natural and induced fracture orientation, Underground Waste Management and Environmental Implications, AAPG Memoir 18, American Association of Petroleum Geologists, Tulsa, OK, p. 235-238
  •  
  • 12. Koenig, L., 1960, Economic aspects of well stimulation, Journal American Water Works Association. 52(5), 613-637
  •  
  • 13. Macaulay, D. 1987, Hydro-fracturing the hard rock well, Groundwater Age, 21(7), 22-25
  •  
  • 14. Swanson, G., 1986, Inflatable packers, Water Well Journal, 40(4), 49-52
  •  
  • 15. Waltz, J.P., 1988, Hydro-frac basics, Groundwater Age., 22(7), 26-29
  •  
  • 16. Williamson, W.H. and Wooley, D.R., 1980, Hydraulic Fracturing to Improve the Yield of Bores in Fractured Rock, Australian Water Resources Council Technical Paper 55, Australian Govemment Publishing Service, Canberra, Australia
  •  

This Article

  • 2005; 10(6): 10-19

    Published on Dec 1, 2005