Project Goal

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WITSML
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Project Goal

• The right time seamless flow of well site data
  between operators and service companies to speed
  and enhance decision-making.
• DomainDrilling, Completion, Well Services

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Existing Standards

• WITS
• Designed, implemented, and established as an
  industry standard in the mid eighties.
• WITS is a binary file format for transferring
  wellsite drilling data.
• It was great for its time, but times have
  changed.

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Limitations of Current WITS

• Outdated MWD data records
• Data is record driven, not object oriented
• Restrictions on number of drill string and casing
  sections
• Inflexibility for handling data in different
  units of measurement
• Very limited capacity for handling static well
  information
• Use of binary data formats is not platform
  independent
• WITS records are extensible but not
  self-describing
• No bi-directional (pull) capability

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Potential Scenarios
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High-level Timing

• July 2001 Working prototype
• January 2002 Commercial offering by the three
  major service companies and at least one small or
  midsize company.
• Effort initiated fall of 2000.

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Project Organization

• Steering Board
• Technical Teams
• Data Objects
• IT Architecture
• Program Manager
• Companies involved to dateBHI, BP, Halliburton,
  Schlumberger, Statoil

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Timing for Wider Input

• July 2001
• Data Objects
• IT Architecture / Functionality
• Trial Implementation

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Cast in Stone

• Deliverable Schedule
• Must be commercially available in early 2002
• XML
• Adopted XML as the data representation format

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Functional Requirements

• Ability to transfer oilfield data between
  different vendors software systems
• Standard definitions of oilfield data objects
• Objects must be extensible and self-defining
• Real-time and batch mode
• Ease of implementation

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Open Sourced 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

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Data Objects

• Well
• Wellbore
• Rig
• Rig Equipment
• Pump
• Location
• Units
• Trajectory(Survey)
• 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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• Questions / Comments?