In an efficient and effective pipe integrity management programme, maintenance engineers often use the risk-based inspection (RBI) and maintenance strategy. Unfortunately, the calculation of risk is a daunting task because in order to calculate the risk of failure, a maintenance engineer needs to predict the rate of growth of a defect, the effect of the defect on the integrity of the structure and the consequence of failure. Unfortunately precise calculation for either of these parts is quite difficult. Fuzzy logic is a mathematical tool suitable for handling imprecise information in the real world. The benefit of this approach lies in its ability to include personal experiences along with acceptable deterministic models in the calculation. The structure of the model also allows easy calibration of the model to suit a particular plant condition. This approach can thus help to reduce the dependence upon the precise data, allow modelling even when a phenomenon is incompletely understood, and reduce the difficulties arising due to the complex computation required by more traditional methods. This paper presents a proposed methodology, based on fuzzy logic framework, for the establishment of an RBI programme for pipes. The paper also presents in detail a section of the methodology that can be used for calculating the estimated rate of CO2 corrosion in carbon steel pipes. In this technique the plant operating parameters (temperature, gas and liquid flow rates, total pressure, CO2 partial pressure and pH) are taken as fuzzy variables and used to calculate the Predicted Rate of Corrosion. The inspected rate of corrosion and the efficiency of inspection are also considered as fuzzy variables and are used to calculate Trust in Inspection Results and Trust in Predicted Results. By combining all the modules an estimated rate of corrosion is calculated. This estimated rate of corrosion can then be used for developing the risk-based inspection programme.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A methodology for risk-based inspection planning of oil and gas pipes based on fuzzy logic framework


    Weitere Titelangaben:

    Eine Methodologie für die risikobasierte Inspektionsplanung von Öl- und Gasrohrleitungen auf der Grundlage eines Fuzzy-Logik-Rahmens


    Beteiligte:
    Singh, Maneesh (Autor:in) / Markeset, Tore (Autor:in)

    Erschienen in:

    Engineering Failure Analysis ; 16 , 7 ; 2098-2113


    Erscheinungsdatum :

    2009


    Format / Umfang :

    16 Seiten, 10 Bilder, 1 Tabelle, 32 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Production Planning Based on Fuzzy Logic

    Braun, H.-J. | British Library Conference Proceedings | 1996


    Production planning based on fuzzy logic

    Braun,H.J. / Fraunhofer Inst.f.Manufacturing and Automation,IPA,DE | Kraftfahrwesen | 1996


    Methodology for risk-based inspection of pressurized systems

    Hagemeijer, P.M. / Kerkveld, G. | Tema Archiv | 1998


    Risk-based inspection planning for mooring chain

    Mathisen, Jan / Larsen, Kjell | Tema Archiv | 2004


    A risk-based inspection planning methodology for integrity management of subsea oil and gas pipelines

    Hameed, Hamad / Bai, Yong / Ali, Liaqat | Taylor & Francis Verlag | 2021