Exchanging Drilling Data Objects with XML

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Exchanging Drilling Data Objects with XML
Successes and Industry Challenges
Bill Sanstrom Landmark Graphics POSC XML
Conference July 13th 2000
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Challenge Develop Assets Faster, Better, and
Cheaper
Planning and Drilling
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(No Transcript)
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XML and Standards ?

• Historically disparate EP software systems have
  shared technical information via a myriad of
  non-standard ASCII file formats, if at all
• The Landmark Drilling and Well Services group
  faced the same challenges within our own suite of
  applications in 1997
• With the advent of the T2B and e-commerce
  revolution even more exchange formats are being
  proliferated throughout our industry making
  Hubs a dream

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Facing the Challenge

• Identified and defined the common drilling data
  objects shared amongst the broad drilling
  application suite
• Adopted a standard exchange format
• Developed a toolkit to read / write the data
  objects to facilitate the exchange of data
• Implemented this data exchange mechanism in all
  Landmark Drilling Applications
• Others followed suit

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Common Drilling Data Objects
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Current List (continues to grow)

• General Well Information
• Location
• Non-Definitive Surveys
• Perforations
• Pore Pressure
• Survey
• Wellbore
• Stimulation Job
• Wellpath Plans
• Well Costing

• Bit Record
• Bottom Hole Assembly
• Casing Scheme
• Casing Seats
• Cement Properties/Job
• Daily Operations
• Detail Well Information
• Dogleg Override
• Drilling Fluids
• Drilling Targets
• Fracture Gradient
• Formation Tops

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Exchange Format
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Exchange Format

• Self Describing
• Platform Independent
• Format independent of the API
• Extensible
• Data Objects
• Data Object Members (Elements)
• Hierarchical
• Verify Data Objects are Well Formed

Sounds like XML
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ltBusinessObject ID'General Well Information'
Author'StressCheck' Version'1.0'
WellID'Offshore Deviated Well with Salt Loads'
Date'20000712T130500000'gt ltDataDescriptiongt lt
TableDef Table'GENERAL'/gt ltFieldDef
Table'GENERAL' Field'WELLHEAD-DEPTH'
Unit'feet' Type'double'/gt ltFieldDef
Table'GENERAL' Field'REF-POINT' Unit''
Type'string'/gt ltFieldDef Table'GENERAL'
Field'DEVIATED' Unit'' Type'string'/gt ltFieldDef
Table'GENERAL' Field'ELEVATION' Unit'feet'
Type'double'/gt ltFieldDef Table'GENERAL'
Field'WELL-DESCRIPTION' Unit''
Type'string'/gt ltFieldDef Table'GENERAL'
Field'LOCATION' Unit'' Type'string'/gt ltFieldDef
Table'GENERAL' Field'COMMENT' Unit''
Type'string'/gt ltFieldDef Table'GENERAL'
Field'WATER-DEPTH' Unit'feet'
Type'double'/gt ltFieldDef Table'GENERAL'
Field'OPEN-HOLE-OD' Unit'inches'
Type'double'/gt ltFieldDef Table'GENERAL'
Field'TOTAL-MEASURED-DEPTH Unit'feet'Type'doub
le'/gt lt/DataDescriptiongt ltGENERALgt ltWELL-DESCRIPTI
ONgtOffshore Deviated Well with Salt
Loadslt/WELL-DESCRIPTIONgt ltLOCATIONgtPLATFORMlt/LOCAT
IONgt ltDEVIATEDgtDEVIATEDlt/DEVIATEDgt ltREF-POINTgtRKBlt
/REF-POINTgt ltTOTAL-MEASURED-DEPTHgt13000.000000lt/TO
TAL-MEASURED-DEPTHgt ltELEVATIONgt150.000000lt/ELEVATI
ONgt ltCOMMENTgtlt/COMMENTgt ltWATER-DEPTHgt450.000000lt/W
ATER-DEPTHgt ltWELLHEAD-DEPTHgtUNDEFlt/WELLHEAD-DEPTHgt
lt/GENERALgt lt/BusinessObjectgt
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Well Formed?

• No such thing as a DTD in 1997 so we developed
  our own using standard.dxt which is also XML
• DTDs have limitations
• Looking into XML Schema

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Development Toolkit (DEX)
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DEX API

• ANSI C Prototype
• Independent of Data Store Format and Content
• No Fixed Data Structures
• Backward Compatible / Versioned
• Fixed Standard Units (Apps convert)
• Callable by C, C, VB (COM), FORTRAN
• Non-Proprietary
• Easy

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Root Level API DexAttach DexOpen DexSave DexDetach
Utility API DexObjectExists DexStringToDate DexDat
eToString DexObjectList DexIsParent DexGetFieldDef
Object Level API DexCreateObject DexPutObject DexD
eleteObject DexCreateTableDef DexCreateFieldDef De
xGetNextObject DexGetNextValue DexPutValue
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Did it work out?
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Current Scenario

• Public Development Kit available, easy to
  integrate into existing applications Knowledge
  Systems - Pore Pressure Prediction
  (PREDICT) Maurer Engineering - Casing Wear
  Prediction (CWEAR) Geo-Mechanics Inc. (GMI)
  Borehole Stability (SFIB) Geoquest Operating
  Companies BPA, Shell, PEMEX
• HalliburtonLandmark Drilling and Well Services
  Applications
• New workflows are being enabled by this
  inter-operability
• DEX XML Schema will continue to grow and be
  supported for 3rd Parties
• Standards Organizations and eEverything.coms

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Questions / Comments bsanstrom_at_lgc.com