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Ghodusi, Farid, Jalalifar, Hossein, Jafari, Saeed. (1398). Analysis of the Casing Collapse in Terms of Geomechanical Parameters and Solid Mechanics. , 53(2), 211-225. doi: 10.22059/jchpe.2019.274240.1267
Farid Ghodusi; Hossein Jalalifar; Saeed Jafari. "Analysis of the Casing Collapse in Terms of Geomechanical Parameters and Solid Mechanics". , 53, 2, 1398, 211-225. doi: 10.22059/jchpe.2019.274240.1267
Ghodusi, Farid, Jalalifar, Hossein, Jafari, Saeed. (1398). 'Analysis of the Casing Collapse in Terms of Geomechanical Parameters and Solid Mechanics', , 53(2), pp. 211-225. doi: 10.22059/jchpe.2019.274240.1267
Ghodusi, Farid, Jalalifar, Hossein, Jafari, Saeed. Analysis of the Casing Collapse in Terms of Geomechanical Parameters and Solid Mechanics. , 1398; 53(2): 211-225. doi: 10.22059/jchpe.2019.274240.1267

Analysis of the Casing Collapse in Terms of Geomechanical Parameters and Solid Mechanics

Journal of Chemical and Petroleum Engineering
مقاله 7، دوره 53، شماره 2، اسفند 2019، صفحه 211-225    اصل مقاله (648.72 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jchpe.2019.274240.1267
نویسندگان
Farid Ghodusi1، 2؛ Hossein Jalalifar* 2؛ Saeed Jafari2
1ACECR Institute of Higher Education, Isfahan Branch, Petroleum Engineering Department, Isfahan, Iran
2Petroleum Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
چکیده
Casing collapse is one of the major problems in oil fields, imposing a lot of costs on oil companies. This problem occurs not only at drilling times in some formations but also after the completion and production can lead to many problems. Analysis of the behavior of casing collapse in terms of geo-mechanics and solid mechanics could significantly meet the needs of the oil industry of Iran. In this study, at first, casing collapse behavior is investigated by considering the formation creep and casing production defects using numerical methods. Then, the effect of some solid mechanics parameters on the casing collapse is investigated. The results showed that casing construction defects, such as ovality and eccentricity and residual stress, could greatly reduce the casing collapse resistance. The resistance reduction of the casing is about 30.37, 9.65, and 46.87 percent respectively, so that when the casing is placed into the well, it undergoes high strain and finally could be reached to collapse.  In addition, it was found that the construction defects show a higher effect on casing collapse than the salt rock creep.  
کلیدواژه‌ها
Casing Collapse؛ Casing Production Defects؛ Salt Rock Creep؛ Geomechanics Numerical Modeling
مراجع
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