Annelida, a Robot for Removing Hydrate and Paraffin Plugs in Offshore Flexible Lines: Development and Experimental Trials

Autor: Andre Manoel Goja Ferreira, Dante Augusto Couto Barone, Eduardo André Perondi, Hugo Francisco Lisboa Santos, Hardy Leonardo da Cunha Pereira Pinto, Eduardo Donadel Basso, Mauricio Galassi, Anselmo Luis da Silva Júnior, Bruno B. Castro, Ney Robinson Salvi Dos Reis, Lincoln Homero Thomé Ferreira, André Viegas Wentz

Publikováno v: SPE Production & Operations. 35:641-653

Summary Methane hydrates and paraffin plugs on flexible lines are concerns in offshore production. They may stop wells for months, causing high financial losses. Sometimes, operators use depressurization techniques for hydrate removal. Another strate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5540ce31d5aa0f97080426233955dcc6
https://doi.org/10.2118/196015-pa

Improved objective Bayesian estimator for a PLP model hierarchically represented subject to competing risks under minimal repair regime

Autor: Hugo Francisco Lisboa Santos, Eduardo André Perondi, André Viegas Wentz, Pedro Luiz Ramos, Oilson Alberto Gonzatto Junior, Vera Tomazella, Marcus V. C. Magalhães, Paulo H. Ferreira, Dante Augusto Couto Barone, Anselmo Luis da Silva Júnior, Ivan C. Perissini, Francisco Louzada, Gustavo Bochio, Eder Angelo Milani, Oscar Mauricio Hernandez Rodriguez, Danilo Colombo, José Alberto Cuminato, Luis F. A. Alegría, Alex L. Mota

Publikováno v: PLoS ONE
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
PLoS ONE, Vol 16, Iss 8, p e0255944 (2021)

In this paper, we propose a hierarchical statistical model for a single repairable system subject to several failure modes (competing risks). The paper describes how complex engineered systems may be modelled hierarchically by use of Bayesian methods

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::357bda5024d80c0ec8a0bb98a10dc464
https://doi.org/10.1371/journal.pone.0255944

Surpassing the Challenges of a Robotic Traction System for Movement inside Long Flexible Obstructed Pipes

Autor: Anselmo Luis da Silva Júnior, André Viegas Wentz, Eduardo André Perondi, Eduardo Donadel Basso, Dante Augusto Couto Barone, Henrique Mendel, Hugo Francisco Lisboa Santos

Publikováno v: Day 3 Wed, October 02, 2019.

The obstruction inside flexible lines with hydrates or paraffins is quite common in offshore production systems. In these cases, in order to perform the clearance of the pipes, many different techniques, usually time consuming and expensive, are curr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b77105a6dc86aae74d33a31a2300ed6e
https://doi.org/10.2118/195925-ms