01677nmc a2200205 4500 20260520005606.0 260224s2001 xxu ing Inglés Drilling in High-Temperature Areas in Brazil: A Wellbore Stability Approach SPE 69516 Dallas, Texas Society of Petroleum Engineers 2001 12/09/06 ; 17/07/01 In this work the stress concentration around unlined holes in areas classified as High Temperature (HT) is determined. The thermal stress generated due to the difference between the drilling fluid and the undisturbed formation temperature is evaluated through an axysimmetric Finite Element Model (FEM) employing the Galerkinś method and four nodes quadrilateral elements, using a transient non-linear thermoelastic solution. In addition, the thermal effect is compared with the mechanical effect, induced by the drilling process (excavation and internal pressure), to assess its significance. Moreover, it is shown, through two field cases in HT areas in Brazil, that failure to consider the thermal effect can lead to misjudgments in the evaluation of the potential wellbore stability. CONGTP Falcao, José L. 6184 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Falcao, José L. 6184 131023 131023 https://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69516.pdf 0 0 0 0 201945 BVIAPG BVIAPG 2026-03-03 200003079 0 200003079 2026-03-03 01:41:10 2026-03-03 ARCHIVO