A contribution to safety and reliability of pipelines and risers in the petroleum industry applications of mathematical inverse problems techniques

• Grant number: 15/50461-0
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2016
• End date: March 31, 2018
• Field of knowledge: Physical Sciences and Mathematics - Mathematics - Applied Mathematics
• Agreement: Groupe des Écoles Centrales (GEC)
• Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
• Principal Investigator: Alexandre Kawano
• Grantee: Alexandre Kawano
• Principal researcher abroad: Abdelmalek
• Institution abroad: Ecole Centrale de Lyon, France
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 15/17560-4 - Uniqueness in the identification of damage in Euler-Bernoulli beams in the non linear case, AP.R

Abstract

This research project is strongly linked to the main theme of the Associated French-Brazilian International Research Laboratory (LIA): "Energy and Environment". In fact, the goal of this work is to analyze the safety and reliability of the long tubes, known as risers, that carry oil from the sea bottom to the surface. These tubes can be several kilometers long and are not easily inspected for verifying the presence of dangerous defects. Unchecked, defects may grow in size bringing about long term catastrophic ecological consequences. Here we analyze from the mathematical point of view the possibility of identifying, as well as their eventual numerical recovery, the presence of defects in risers. Furthermore, we propose a numerical method for the recovery of the function that models the perturbation in the flexural rigidity of the riser. From this recovery we intend to estimate the reliability of the structure against fatigue failures. The project is multidisciplinary. It brings together the expertise of researchers in numerical analysis, solid mechanics and structures. It establishes and strengthens the scientific collaboration links between Brazil and France. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

KAWANO, ALEXANDRE; ZINE, ABDELMALEK. Reliability evaluation of continuous beam structures using data concerning the displacement of points in a small region. ENGINEERING STRUCTURES, v. 180, p. 379-387, FEB 1 2019. (17/06452-1, 15/50461-0)

KAWANO, ALEXANDRE; ZINE, ABDELMALEK; HOFMANN, B; LEITAO, A; ZUBELLI, JP. Bayesian Updating in the Determination of Forces in Euler-Bernoulli Beams. NEW TRENDS IN PARAMETER IDENTIFICATION FOR MATHEMATICAL MODELS, v. N/A, p. 16-pg., 2018-01-01. (15/50461-0)

TRIGO, C. C. O.; MOROOKA, C. K.; ASME. MODEL TEST WITH A VERTICAL PIPE TO ELEVATE COLD SEA WATER. PROCEEDINGS OF THE ASME 38TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2019, VOL 7A, v. N/A, p. 7-pg., 2018-01-01. (06/01036-5, 15/50461-0)

KAWANO, ALEXANDRE; ZINE, ABDELMALEK; MOROOKA, CELSO; ICHCHOU, MOHAMED. Analysis of the vibration of risers considering coupled longitudinal and transversal displacements and a new numerical approach. OCEAN ENGINEERING, v. 222, FEB 15 2021. (15/50461-0)