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WITSML™ Drilling Standards

WITSML™ Drilling Standards. Pemex 21 August 2008 Ciudad de México Alan Doniger, Energistics. Outline. Background Data Transfer Standards, XML, Web Services, WITS Overview Evolution [2000 – the present] Use Energy companies, service/software companies Discussion. Background.

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WITSML™ Drilling Standards

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  1. WITSML™ Drilling Standards Pemex21 August 2008Ciudad de México Alan Doniger, Energistics

  2. Outline • Background • Data Transfer Standards, XML, Web Services, WITS • Overview • Evolution [2000 – the present] • Use • Energy companies, service/software companies • Discussion

  3. Background

  4. WITSML™ – WWW.WITSML.ORG “The ‘right-time’ seamless flow of well-site data between operators and service companies to speed and enhance decision-making” An Open Information Transfer Standard for the Oilfield Wellsite Information Transfer Standard Markup Language

  5. What is WITSML ? • WITSML is a framework for moving drilling data between rig and office-based computer systems. • Context: • Internet • XML Schema • Web Services • Openly available to all to implement. • www.energistics.org • www.witsml.org • Hosted by Energistics • User community is the WITSML Special Interest Group

  6. Pre-WITSML Situation (up to year 2000) • Industry Real-time Data Centers operated in 1980s • Amoco • Chevron • Mobil • WITS (Wellsite Information Transfer Standard) • Before the Internet, though it stood the test of time, it became dated. Differing approaches to WITS implementations fragmented interoperability. • Level 0 [Other levels rarely used] • 25 Record Types • Statoil (late 1990s) • DART (Drilling Automation Real Time) Project • Proprietary Systems

  7. The Origin of WITSML • DART evolved into a multi company effort • Statoil, BP, BakerHughes, Halliburton, Schlumberger • to create a new standard, replacing WITS, • based on evolving internet technology, • with much improved functionality • Improves “Plug and play” approach to moving data between systems • For Operators, reduces costs for moving data, and improves competitiveness (Selecting vendors not driven by impact of IT changes, but on the service provided) • For Contractors, reduces need to support different systems for different operators • WITSML covers not only real-time data, but also contextual data

  8. WITSML’s original goal • The “right time” seamless flow of well site data between operators and service companies to speed and enhance decision-making. Domain:Drilling (from 2000), then Completions (from 2004), and then Well Services and Maintenance (from 2008)

  9. Pre-WITSML Drilling Standards • WITS • Designed, implemented, and established as an industry standard in the mid 1980s • A binary file format for transferring wellsite drilling data • No standard programming interface • Limited data objects • It was great for it’s time, but times have changed

  10. WITS: Well Identification Record Type #23

  11. WITS: Well Identification Record Type #23

  12. WITS Compared With WITSML A WITS 0 Data Stream && 0201Operator Name 1-5a 02021 0203152 02041699 02270.973 02288871 0229484 !! && 1401 Operator Name 1-5a 14021 14088871 1419-9.25 1420266 14211484 !! • A WITSML Data Stream • <nameWell>TEST</nameWell> •   <nameWellbore>1</nameWellbore> •   <indexType>Depth</indexType> •   <startIndex>7051.0</startIndex> •   <endIndex>7851.0</endIndex> •   <indexCurve>DMEA</indexCurve> •   <stepIncrement>1.5</stepIncrement> •   <indexUnits>FT</indexUnits> •   <logCurveInfo> • <curveDescription>Measured Depth</curveDescription> •   <mnemonic>TIME</mnemonic> •   <unit>S</unit> •   <nullValue>-999.2500</nullValue> •   </logCurveInfo> • <logCurveInfo> • <curveDescription>Time</curveDescription •   <mnemonic>ACTC</mnemonic> •   <unit /> •   <nullValue>-999.2500</nullValue> • </logCurveInfo> 6

  13. WITSML: Original Use Scenario

  14. WITSML: Early History • October 2000 – Initiation by BP and Statoil • May 2001 - Data Objects defined • July 2001 – Working prototype • August 2001 - Wider industry awareness at SPE Forum + Austin workshop • October 2001 - Data standard design freeze • January 2002 – Early commercial offering by the three major service companies and at least one other company [Baker Hughes, Halliburton, Schlumberger, Kongsberg]

  15. WITSML: Early Architecture • Web Based & W3C Standards • Wide area networking • Cross-platform • XML data formats • Platform and language independent • (Web Services) SOAP for Programming Interface • Web server based • Platform and language independent • API Prototype in MS Visual BASIC

  16. WITSML: Intended Early Deliverables • Definition of Data Objects & Catalogs • Example WITSML files • Validation tool for WITSML files • Example code to read and write simple WITSML data files • Documentation

  17. WITSML: Original Data Objects • Well • Wellbore • Rig • Rig Equipment • Pump • Location • Units • Trajectory • Target • Bit Record • Bottom Hole Assembly • Wellbore Geometry • Casing Scheme • Open Hole • Daily Operations • Fluids Report • Cement Job • Log • Real Time • Mud Logging

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