Objectives/deliverables
To develop methods, tools and guidance to support the implementation of condition-based O&M strategies. Fields of application range from drilling, to subsea, topside and onshore operations. In particular, the sub-project will deliver novel methods for technical health monitoring and remaining useful life (RUL) calculations, deliver a modular and expandable toolbox where condition-based O&M applications are developed, and deliver guidance for the implementation of condition-based O&M strategies in an IO setting.

The project has focus on further development of a standards-based modular platform and toolbox (Mímir) to support development, testing, benchmarking, integration, and distribution of condition monitoring, early fault detection, health assessment, and lifetime and performance prediction technology

• The methods and tools to achieve this is to investigate technical health indicators and remaining useful life (RUL) estimators. In adition to implement condition monitoring and lifetime & performance prediction modules in the Mímir platform.
  
  

A significant obstacle hampering the widespread implementation of condition-based maintenance and health monitoring solutions in Integrated Operations is the unavailability of a standardised platform onto which monitoring applications can be built, tested, and integrated with centralised data repositories. The Mímir platform being developed by IFE within the IO Centre is based on accepted industry standards, such as ISO 13374 and the Mimosa OSA-CBM, and is designed to fill this gap.

Mímir aims at providing a standardised and expandable set of tools that can be easily combined to quickly implement and deploy advanced decision support functions and business solutions.

The Mímir Builder used to assemble a condition monitoring system made of a network of predefined standard modules

Recently the graphical application development tool Mímir Builder (see Figure) was developed together with the Mímir Run-Time Manager. These tools are using the XML-based Mímir System Definition Language, to define and exchange system definitions and setup information. This approach for developing systems has already been successfully tested on several demonstration cases, where applications were built within the Mímir platform by seamlessly linking pre-developed modules independently implemented in different programming languages (i.e. C#, Matlab, Fortran and Java).

Case Studies - Implementation of condition-based O&M techniques in Mímir.

Cooperation and case studies with sub-project 1.2. Focus on implementation in Mímir of data-driven interpretation methods for early diagnosis of drilling anomalies (e.g. kick detection, stuck pipe, poor hole cleaning, and drillstring washout). Evaluate the use of Mímir for quality assurance of drilling data (signal validation) Pursue additional industrial case studies (Statoil R&D (Rotvoll) choke erosion, Statoil Rotating Machinery Operations Center (Bergen)) (Possible case study in cooperation with sub-project 3.2 on condition monitoring of production separators – possibility to be evaluated during second half of 2010)

A paper on Mímir was presented at the NPIC&HMIT 2009 conference in Knoxville, TN.

Work related to the project’s PhD candidate has involved the following:

• The PhD project description and research plan of the candidate was submitted. The main objective of the PhD project is to clarify the concept of technical health, to derive it’s relationship with RUL, to develop an overall framework for RUL prediction and thus to provide an input for decision regarding life extension of a subsea equipment.
  
• A paper on life extension of machinery in oil and gas industry was submitted and accepted for publication and presentation at the ESREL 2009 conference.

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