LogGraphicsML Log Format Descriptions in XML

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LogGraphicsMLLog Format Descriptions in XML

• Kanai Pathak Schlumberger, Austin
• pathak_at_slb.com

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The Idea
Data

Text Log Description
3
Goal

• Define a common file format to describe Oil Field
  Log Graphics that
• Allows interchange between software systems
• Is simple, easy to construct and easy to read
• Allows for modification of the graphic format on
  receiving system
• Is text with support for internationalization
• Can be used with data in any format
• LAS, DLIS, proprietary database
• Can be shared by oil companies and service
  companies

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Scenarios

• Job planning
• client provides log formats in LogGraphicsML
  format
• During job, real-time data delivery over web
• Log formats are stored in LogGraphicsML format on
  a web server
• Log formats are stored in LogGraphicsML format on
  a local machine
• Post job
• Data and log formats are delivered in standard
  formats
• Data and log formats are exchanged in standard
  formats between oil field personals

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Proposal

• Use the eXtensible Markup Language (XML)
• Separate data from graphics
• Combine data and graphics at run-time by a
  viewer
• Refer to data using channel specification
• Define simple objects with clearly defined
  properties using an XML schema which defines the
  text syntax

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Example
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How it Works

• Divide oil field log graphics into a few simple
  objects such as tracks, curves, grids, etc.
• Organize objects into a tree-like structure
• Define object and property tags in the Schema
• Use these objects and properties in XML files for
  particular log descriptions

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Status Schedule

• Weve provided POSC with a proposal for a
  standard for the basic objects
• http//www.posc.org/ebiz/LogGraphicsML
• Last meeting Sep 20, 2000 at Schlumberger, Austin
• Schedule
• Resolve open issues and submit updated document
  by Oct 6,00
• Standardize LogGraphicsML vesion 1.0 by Oct 30,00
• Submit proposal for version 2.0 by end of 2000

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Graphical Objects
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Example continued

• ltLogGraphicsgt
• ltVerticalScalegt
• lt/VerticalScalegt
• ltFontgt
• ltFontgt
• lt/IndexGridgt
• ltIndexLinegt
• lt/IndexLinegt
• lt/IndexGridgt
• ltTrackgt
• ltLinearGridgt
• lt/LinearGridgt
• ltCurvegt
• lt/Curve
• lt/Trackgt
• lt/LogGraphicsgt

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Graphical object properties

• ltLogGraphicsgt
• ltTrackgt
• ltLeftPositiongt0.0lt/LeftPositiongt
• ltRightPositiongt2.5lt/RightPositiongt
• ltCurvegt
• lt!- data reference, by channel name property --gt
• ltChannelNamegtROPlt/ChannelNamegt
• ltLeftLimitgt0.0lt/LeftLimitgt
• ltRightLimitgt150.0lt/RightLimitgt
• ltColorgt000000lt/Colorgt
• lt/Curvegt
• lt/Trackgt
• lt/LogGraphicsgt

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Thank you

• Questions?