The Importance of the Geospatial Component of Geophysical Data Management in the E

1
The Importance of the Geospatial Component of
Geophysical Data Management in the EP Workflow
Jonathan P. Stigant Devon Energy Corporation

• IAGC Annual General Meeting
• February 19th 2009

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Introduction and Overview

• Introduction to Devon
• Big Picture
• Long Term Industry Goal and Geospatial Trends
• Devon EP Workflow
• Geospatial EP Quality Workflow
• Geospatial Seismic Quality Workflow
• Some Case Histories and Statistics
• Focus on
• Industry Connections and Standards
• Geophysical Data Management Best Practices
• Conclusions and Recommendations

3
Devon Operations

• Largest US Independent
• Specialties
• Unconventional Shale Plays
• GOM/Brazil/China Deepwater
• Canada Tar Sands

4
Industry Focus Long Term

• Hydrocarbons especially Oil
• Increased demand Developing World NOCs
• Slow Growth of Alternatives
• Increasing EP Costs

• General Promoted Solutions
• New technology
• Opening More Areas to Drilling
• Encouraging Alternatives
• Not Generally Mentioned
• Doing the Basics Better
• Collaborating on Industry Standards (NOCs)
• Better Data Management for Identity and
  Location of assets

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Devons EP Value Chain
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The Three Most Important Things!
Location Location Location
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Geospatial Trends

• Mapping Principles/No Change
• Understanding Geodesy is the foundation of all
  good surveying and maps
• Cartography describes the mpping science
• Technique/Revolutionary Changes
• GPS is the survey utility of the 21st century
• GIS is the mapping utility of the 21st century
• Over 75 of our data is spatially referenced
  whether we know it or not!

Bottom Line - Doing it right the first time can
save our Industry millions of dollars
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Geospatial Trends

• Mapping Principles/No Change
• Understanding Geodesy is the foundation of all
  good surveying and maps
• Cartography describes the mapping science
• Technique/Revolutionary Changes
• GPS is the survey utility of the 21st century
• GIS is the mapping utility of the 21st century
• Over 75 of our data is spatially referenced
  whether we know it or not!

The corollary is also true!
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Geospatial Management in the EP Workflow

• Application Management
• GIS
• Interpretation System
• Middleware
• Well Data Apps
• Reservoir Modeling and Engineering

• Data Management
• Boundaries
• Culture (Coastline Roads Rivers etc)
• Wells
• Raster/Imagery

• Load Sheets
• Data Loading

• 2D 3D Seismic
• Acquisition Purchase
• Seismic Processing
• Velocity/Gathers

• Drilling
• Directional Drilling
• Site Survey

• Pipelines/Facilities
• Reservoir Management
• 4D Seismic
• Production

• Pre-Lease
• Lease Contract
• Boundary Definitions
• Prospect Evaluation

• Interpretation
• Proposed Well
• Volumetric Analysis

Functional Activities
System Activities
GIS and Mapping Management Requirement Reformattin
g Re-referencing and Re-presenting Spatial Data
Auditing

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Tipping Point!

• Data Types
• Seismic
• Well
• Boundary

• Components
• Substance
• Identity
• Location

• Current Industry Data Status (Databases and
  Projects)
• Seismic 35-40 missing or mis-reported data
• Surface Well 40 misplaced by gt 100 ft
• Sub-surface Well 25 misplaced by gt200 ft
• US Land Boundary 30-50 misplaced

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Some Causes

• Lack of
• Poor Cross Functional Collaboration
• Education And Training
• Geospatial Detail
• Spatial Metadata (Datum Projection Convergence)
• Spatial Quality Attributes
• Geospatial Design In Applications
• Supplier Contract Specifications And QC
• Defined Supporting Deliverables
• Checking Documented Coordinates (Typos)
• Desire For Automation At The Expense Of Accuracy

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Geospatial (Geodetic) Review Process

• Utilizing project data verify that
• The Survey is located correctly
• The Geodesy relating to the project is right
• The various data sets containing coordinate data
  are in agreement
• Evaluate Proposed Well Location versus Original
  Geophysical Data
• Project Data Utilized
• Navigation Bin Center Coordinates in industry
  standard formats of UKOOA P1 or SEG P1
• Work Station LoadSheet
• SEG Y Trace header Data
• Survey Perimeter Outline Point file

Link
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Focus in on Seismic Data Delivery Current
Performance
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Wrong SEGY EBCDIC Header Information

• Navigation Bin Centers and LoadSheet comparisons
  on initial data delivery
• Navigation P1 SegY seismic data LoadSheet
  Survey outline had different errors and all were
  replaced

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Impact of Poorly Positioned Data
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Land Lease Liability
Northing
Mapped Land Grid
3D Survey
Easting
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Land Lease Liability
Location from Map Land Grid Measured relative to
True Land Grid
True Land Grid
Northing
Mapped Land Grid
3D Survey
Easting
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Proposed Drilling Location

• Two Surveys
• Interpreter complained that one was mismatched
  with the other
• One survey loaded with new corners but datum
  labeling not changed
• Result 250 meter error
• Question would we have found it if there was
  only one survey

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Industry Collaboration Examples

• Communication with Geophysical Contractors on
  Deliverables
• International Oil and Gas Producers Association
  (OGP)
• Survey and Positioning Committee
• EPSG Geospatial parameter Database
• Spatial Formats
• Regional Petroleum Survey Groups APSG
• APSG Americas Petroleum Survey Group
• Houston Based
• Two Meetings per year (February 26 2009)
• ESRI Petroleum Users Group
• Annual Meeting in February (Feb 23-25 2009)
• Energistics (POSC)
• Data Management SIG
• Geophysical SIG
• WITSML

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Geospatial Integrity of GG Software JIP

• Participation
• 13 Operators
• 6 major Vendors

• Applications
• OW/Seisworks
• Geoframe
• ESRI ArcGIS
• Petra (If time and budget allow)

• Objectives
• Software improvement guidance to vendors
• Development of accepted industry standards and
  specifications
• Create a vendor self verification process of
  geospatial integrity by 2010

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Application Geospatial Reviews

• Introduction of Geodetic and Cartographic
  Functionality
• Already Done
• Geoframe (2005)
• Petrosys (2006)
• Petra (2008)
• None achieved without significant problems
• Others as yet unchecked
• Finder
• Trango
• FME
• Forthcoming
• Petrel 2009
• R5000

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Conclusions and Recommendations

• Industry and Company Focus
• Promote Standards - Collaboration to have one set
  of industry standards
• Across All EP Disciplines
• Operational and Data Management Support
• Independent Quality Assurance (Field and Office)
• Geospatial Standards for
• Field Operations Data Processing Data
  Licensing Application Licensing
• Detailed Workflows (Link) (Link)
• EP as Data Custodians (vs. IT)
• Fit for Purpose/Quality Measures in DBs
• Geospatial Component of GGE Applications
• Review before Implementation
• Strategic Collaboration
• Education in Mapping Sciences - Geodesy
  Cartography
• Training in College
• Companies

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Links and Contacts

• OGP SP Committee
• Guidance Notes
• http//www.ogp.org.uk/
• Fly over Committees
• Select Survey and Positioning Committee
• Under Recent Publications select
• Geodetic Awareness Guidance Note (SP 01)
• Look for Download free (Bottom Right)
• Energistics SIGs
• http//www.energistics.org/posc/DM_SIG.aspSnID44
  6734262
• http//www.energistics.org/posc/Geophysical_SIG.as
  pSnID446734262
• ESRI
• http//www.esri.com/events/pug/index.html
• APSG
• http//apsg.info/