WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES
Nediljka Gaurina Međimurec
APA 6th Edition
Pašić, B., Gaurina Međimurec, N. & Matanović, D. (2007). WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES. Rudarsko-geološko-naftni zbornik, 19 (1), 87-98. Retrieved from https://hrcak.srce.hr/19296
MLA 8th Edition
Pašić, Borivoje, et al. "WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES." Rudarsko-geološko-naftni zbornik, vol. 19, no. 1, 2007, pp. 87-98. https://hrcak.srce.hr/19296. Accessed 30 Sep. 2022.
Chicago 17th Edition
Pašić, Borivoje, Nediljka Gaurina Međimurec and Davorin Matanović. "WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES." Rudarsko-geološko-naftni zbornik 19, no. 1 (2007): 87-98. https://hrcak.srce.hr/19296
Pašić, B., Gaurina Međimurec, N., and Matanović, D. (2007). 'WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES', Rudarsko-geološko-naftni zbornik, 19(1), pp. 87-98. Available at: https://hrcak.srce.hr/19296 (Accessed 30 September 2022)
Pašić B, Gaurina Međimurec N, Matanović D. WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES. Rudarsko-geološko-naftni zbornik [Internet]. 2007 [cited 2022 September 30];19(1):87-98. Available from: https://hrcak.srce.hr/19296
B. Pašić, N. Gaurina Međimurec and D. Matanović, "WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES", Rudarsko-geološko-naftni zbornik, vol.19, no. 1, pp. 87-98, 2007. [Online]. Available: https://hrcak.srce.hr/19296. [Accessed: 30 September 2022]
Wellbore instability is one of the main problems that engineers meet during drilling. The causes of wellbore instability are often classified into either mechanical (for example, failure of the rock around the hole because of high stresses, low rock strength, or inappropriate drilling practice) or chemical effects which arise from damaging interaction between the rock, generally shale, and the drilling fluid. Often, field instances of instability are a result of a combination of both chemical and mechanical. This problem might cause serious complication in well and in some case can lead to expensive operational problems. The increasing demand for wellbore stability analyses during the planning stage of a field arise from economic considerations and the increasing use of deviated, extended reach and horizontal wells. This paper presents causes, indicators and diagnosing of wellbore instability as well as the wellbore stresses model.
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