Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
FAILURE ANALYSIS IN A DOWNHOLE SAFETY VALVE SUBJECTED TO TWO-PHASE PIPE FLOW
Submission Author:
Luis Felipe Acuna Alegria , SP
Co-Authors:
Luis Felipe Acuna Alegria, Oscar Mauricio Hernandez Rodriguez
Presenter: Luis Felipe Acuna Alegria
doi://10.26678/ABCM.COBEM2021.COB2021-0920
Abstract
A study of a common down hole safety valve (DHSV) that is installed in offshore oil wells is performed, with the objective to determine whether the internal flow has a relationship with the reduced life of that structural element. A fluid-structure interaction analysis is considered, to demonstrate that the vibrations of structural elements induced by flow are more likely to occur. Particularly, whether the internal two-phase flow arranged in the intermittent flow pattern could have influence on the reliability of the DHSV. The experimental work, which will be carried out in the LEMI (from Portuguese, Laboratório de Escoamentos Multifásicos Industriais) at the University of São Paulo in Brazil, will focus on determining the structural behavior of a pipe with internal dimensions similar to those of a DHSV subjected to an internal two-phase flow dynamically similar to that that occurs in real practice. The main objective is the scaling up of the results, which should allow extrapolation to full scale in the oil industry, therefore, the development of tool to predict the occurrence of failures according to the existing flow conditions.
Keywords
DHSV, Two - Phase Flow, fluid-structure interaction (FSI), Fluid-Induced Vibration (FIV)
