OREDA

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OREDA
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WHAT OREDA IS

• A project organization with 10 oil companies as
  members (as per January 2001)
• A comprehensive databank with Exploration
  Production (EP) reliability data collected from
• Offshore topside and subsea equipment
• Onshore E P equipment
• A forum for exchange and development of
  reliability methods and knowhow within the oil
  and gas industry

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GENERAL OREDA OBJECTIVES

• Improve safety
• by providing experience and data on risks
• Improve reliability and availability
• by use of reliability data to select most
  reliable equipment and configuration, and reveal
  weak designs for future improvement
• Improve maintenance effectiveness
• by using failure data to refine maintenance
  strategies
• Enhance industry reputation
• by demonstrating a high degree of understanding
  of equipment performance and characteristics

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SPECIFIC OBJECTIVES

• Collect and exchange operating experience in a
  common format
• Promote reliability engineering in E P projects
• Develop a reference for the collection and
  analysis of reliability data in the oil and gas
  industry
• Develop cost-efficient data collection methods
  and tools
• Feed back operating experience to the equipment
  manufacturers
• Co-operate with other organizations and research
  institutes on data collection and analysis

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ORGANISATION
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OREDA HISTORY
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ACHIEVEMENTS

• Common standard and references for reliability
  information (e.g. ISO 14 224) issued July 1999
• Comprehensive databank with offshore reliability
  data
• Reliability Data Handbooks (3) with compiled data
• Development of guidelines and software for data
  collection and analysis
• Increased cost-efficiency in data collection
  (automated data collection)
• Enhancement and exchange of knowledge in
  reliability technology through research projects,
  courses and workshops
• Cooperation between OREDA, users and
  manufacturers
• Enhanced credibility of availability, risk and
  maintenance analyses by comprehensive
  reliability statistics

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RESULT OF QUESTIONNAIRE ON NEED FOR RELIABILITY
DATA IN RAM ANALYSES (OREDA companies)

• 82 consider lack of reliability data a problem
  in RAM studies
• 77 use databases as main source for RAM analyses
• 71 spend 10 - 30 of time during RAM analyses
  to get hold of sufficient reliability data
• These advantages of OREDA were emphasized
• large populations
• high quality data
• easy access to relevant data
• standardization of concept and formats

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DATA COLLECTED IN THE VARIOUS OREDA PHASES -
STORED IN DATABASES
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DATA COLLECTED IN OREDA PHASE I - CONTAINED IN
HANDBOOKS ONLY (84 and 92 edition)
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NUMBER OF MANUFACTURERS/VENDORS
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EQUIPMENT CLASSES PHASE V
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THE NEED FOR DATA
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APPLICATION OF DATA

• Availability studies
• Availability estimates
• Design optimization
• Equipment selection
• Risk analysis
• Estimate probabilities of critical events
• Estimate survival time for safety-critical items
• LCC
• Benchmarking

• Maintenance planning and optimization
• RCM
• Spare parts requirements
• Analyze reliability characteristics
• Reveal weak designs/design improvements
• Operations
• Condition monitoring
• Trend monitoring

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Maintenance Optimization Process
OREDA
Set Maintenance Objectives
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Reliability Data Input
Reliability Centered Maintenance
-Integrity -Production -Costs
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Update With Optimum Strategies
Adjust
Input RCM- Based Strategies
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System Effectiveness Modeling
Performance Measurement
Implement Optimum Strategies
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OREDA SOFTWARE MODULES
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USE OF OREDA DATA - Case A

• Application Overpressure protection
• Installation Offshore gas platform
• Case Tie-in of new gas fields could result in
  cold temperature problems on existing blowdown
  and flare system. In addition overpressure may
  occur from large export compressors. A new system
  according to API specification was originally
  planned
• Solution An alternative instrument based
  overpressure protection system on export gas
  manifold to control both cold gases and the
  compressors was devised. Analysis proved this to
  be safer than the API design
• Cost saving US 30 Million
• Analysis Risk and Reliability study
• Use of OREDA data Analysis based on OREDA data
  convinced the operator, and subsequently the
  authorities, as to the confidence of the devised
  solution

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USE OF OREDA DATA - Case B

• Application Oil export
• Installation Offshore oil and gas platform
• Case Tie-in of a new field to an existing
  platform. The new euipment module includes
  separators, compressors, gas turbine etc. A 2 x
  100 oil export system was originally planned.
• Solution A 1 x 100 oil export system was
  selected consisting mainly of a booster pump and
  an export pump. Estimated production availability
  reduced by 0.4
• Cost saving Cost NOK 50 millions. Weight 20
  tons of equipment,
• 40 tons bulk. More space available.
• Analysis RAM assessment
• Use of OREDA data OREDA Phase III pump data used
  as input to the RAM assessment

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CONTENT OF ISO Standard 14 224

• A. Normative part
• Introduction
• Scope
• Definitions
• Quality of data
• Equipment boundary and hierarchy
• Information structure
• Equipment-, failure and maintenance data

• B. Informative Annexes
• Equipment class attributes
• Failure and maintenance notations
• Quality control checklist