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Title: 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

2
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

5
Devons EP Value Chain
6
The Three Most Important Things!
Location, Location, Location
7
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
8
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!
9
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

10
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

11
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

12
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
13
Focus in on Seismic Data Delivery Current
Performance
14
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

15
Impact of Poorly Positioned Data
16
Land Lease Liability
Northing
Mapped Land Grid
3D Survey
Easting
17
Land Lease Liability
Location from Map Land Grid Measured relative to
True Land Grid
True Land Grid
Northing
Mapped Land Grid
3D Survey
Easting
18
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?

19
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

20
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

20
21
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

22
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

23
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.asp?SnID44
    6734262
  • http//www.energistics.org/posc/Geophysical_SIG.as
    p?SnID446734262
  • ESRI
  • http//www.esri.com/events/pug/index.html
  • APSG
  • http//apsg.info/
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