Authors
LP Gouveia*, ET Lima Junior, WWM Lira, ASR Barboza
Publication date
2024/4/29
Conference
Offshore Technology Conference
Pages
D041S051R002
Publisher
OTC
Description
This work presents a casing integrity study that begins with data collected from an ultrasonic log inspection and progresses to the estimation of the residual collapse strength of damaged tubes, using a probabilistic-based Finite Element (FE) modeling. The goal is to provide a data-driven enhanced assessment of the structural integrity of tubular components in a high complexity and risk environment, as in the case of the Brazilian pre-salt region. Damage identification employs a technique that seeks an ellipse geometry resembling the probable intact shape of the casing's inner wall. Then, the residual collapse strength is estimated by using physically and geometrically nonlinear FE modeling. The probabilistic analysis is carried out using the First Order Reliability Method (FORM), considering the FE modeling limit state and random variables associated with material and geometry of the tubulars, as well as …
Scholar articles
LP Gouveia*, ETL Junior, WWM Lira, ASR Barboza - Offshore Technology Conference, 2024