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http://dx.doi.org/10.6110/KJACR.2012.24.11.784

An Analytical Study on Casing Design for Stabilization of Geothermal Well  

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.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.24, no.11, 2012 , pp. 784-791 More about this Journal
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.
Keywords
Well casing; Strength; Safety factor; Casing design Program; EGS;
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