| Title |
An Analytical Study on Casing Design for Stabilization of Geothermal Well |
| Authors |
이은지(Eun-Ji Lee) ; 전용석(Yong Seok Jeon) ; 김용찬(Yongchan Kim) ; 전종욱(Jongug Jeon) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2012.24.11.784 |
| Keywords |
지열정케이싱 ; 강도 ; 안전계수 ; 케이싱설계프로그램 ; 인공저류층생성기술 Well casing ; Strength ; Safety factor ; Casing design Program ; EGS |
| 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. |