Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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An Analytical Study on Casing Design for Stabilization of Geothermal Well

지열정 안정화를 위한 케이싱 설계에 대한 해석적 연구

  • Lee, Eun-Ji (Department of Mechanical Engineering, Graduate School of Korea University) ;
  • Jeon, Yong Seok (Department of Mechanical Engineering, Graduate School of Korea University) ;
  • Kim, Yongchan (Department of Mechanical Engineering, Korea University) ;
  • Jeon, Jongug (Department of System Development, INNOGEO Technologies Inc.)
  • 이은지 (고려대학교 기계공학과 대학원) ;
  • 전용석 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 전종욱 ((주)이노지오 테크놀로지)
  • Received : 2012.08.14
  • Published : 2012.11.10
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Abstract

The casing has been used as a protective conduit during all phases of drilling operations and productions for the oil and gas industries. The casing is manufactured in various diameters, wall thicknesses, lengths, strengths, and connections. When the casing is designed, it has to be considered to withstand a variety of forces, such as collapse, burst, and tensile failure, as well as chemically aggressive brines. Once the casing is damaged, serious problems in geothermal well have been detected continuously. Therefore, this paper describes the casing design for stability of geothermal well to determine influence of casing parameters on the strength and load. In addition, the casing design program was developed. The estimated collapse, burst, tension and depth pressure can provide benefit in the casing design and completion method. This program provides a safety factor and predicts the casing stress more easily.

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References

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