Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation
Abstract
The paper deals with the integrity assessment of API J55 steel casing pipes for drilling rigs, manufactured by high frequency contact welding procedure. The influence of corrosion defects on the pipeline load carrying capacity is determined through pressure test of a pipe with corrosion damages simulated by machining the circular holes. Finite element analysis of the damaged pipe subjected to internal pressure is used for determining the stress/strain conditions in the damaged area of the pipe. Also, numerical model was used for establishing the load carrying capacity of the pipe with different damage levels (i.e. defect depth and length). Several expressions from the literature are used for estimation of the maximum pressure in the damaged section of the pipe, and the solutions are compared with the predictions of finite element models and experimental results.
Keywords:
Casing pipe / Finite element analysis / Maximum pressure / Surface defectSource:
19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF, 2012Publisher:
- 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
Institution/Community
Tehnološko-metalurški fakultetTY - CONF AU - Rakin, Marko AU - Arsić, Miodrag AU - Šarkočević, Živče AU - Međo, Bojan AU - Tomović, N. AU - Sedmak, Aleksandar PY - 2012 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1975 AB - The paper deals with the integrity assessment of API J55 steel casing pipes for drilling rigs, manufactured by high frequency contact welding procedure. The influence of corrosion defects on the pipeline load carrying capacity is determined through pressure test of a pipe with corrosion damages simulated by machining the circular holes. Finite element analysis of the damaged pipe subjected to internal pressure is used for determining the stress/strain conditions in the damaged area of the pipe. Also, numerical model was used for establishing the load carrying capacity of the pipe with different damage levels (i.e. defect depth and length). Several expressions from the literature are used for estimation of the maximum pressure in the damaged section of the pipe, and the solutions are compared with the predictions of finite element models and experimental results. PB - 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 C3 - 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF T1 - Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation UR - https://hdl.handle.net/21.15107/rcub_technorep_1975 ER -
@conference{ author = "Rakin, Marko and Arsić, Miodrag and Šarkočević, Živče and Međo, Bojan and Tomović, N. and Sedmak, Aleksandar", year = "2012", abstract = "The paper deals with the integrity assessment of API J55 steel casing pipes for drilling rigs, manufactured by high frequency contact welding procedure. The influence of corrosion defects on the pipeline load carrying capacity is determined through pressure test of a pipe with corrosion damages simulated by machining the circular holes. Finite element analysis of the damaged pipe subjected to internal pressure is used for determining the stress/strain conditions in the damaged area of the pipe. Also, numerical model was used for establishing the load carrying capacity of the pipe with different damage levels (i.e. defect depth and length). Several expressions from the literature are used for estimation of the maximum pressure in the damaged section of the pipe, and the solutions are compared with the predictions of finite element models and experimental results.", publisher = "19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012", journal = "19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF", title = "Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation", url = "https://hdl.handle.net/21.15107/rcub_technorep_1975" }
Rakin, M., Arsić, M., Šarkočević, Ž., Međo, B., Tomović, N.,& Sedmak, A.. (2012). Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation. in 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012.. https://hdl.handle.net/21.15107/rcub_technorep_1975
Rakin M, Arsić M, Šarkočević Ž, Međo B, Tomović N, Sedmak A. Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation. in 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF. 2012;. https://hdl.handle.net/21.15107/rcub_technorep_1975 .
Rakin, Marko, Arsić, Miodrag, Šarkočević, Živče, Međo, Bojan, Tomović, N., Sedmak, Aleksandar, "Damaged welded pipes for oil and gas rigs exposed to internal pressure - Failure estimation" in 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF (2012), https://hdl.handle.net/21.15107/rcub_technorep_1975 .