Geophysics SIG

1
Geophysics SIG

• Work Meetings
• Houston, 12 March 2009
• Web Conference, 26 March 2009

2
Energistics Meeting Policies

• Intellectual Property
• Participation indicates agreement to abide
• Do not disclose confidential
• Disclosures are deemed public
• Contributions are made with grant of rights to
  use, modify, etc.

• Competitive Information
• Do not disclose pricing, costs, sales, plans,
  schedules, etc.
• Or your participation may be terminated
• If you are uncomfortable regarding such legal
  matters, leave the meeting and report your
  concerns.

3
Meeting Agenda

• Welcome and Introductions 
• Meeting Objectives
• Highlights of the 2008 Study
• ONGC Presentation
• Topics for Discussion
• Best practice elaborations
• Input to or promotional activities for SEG TSC
• Specifications definition
• RESQML coordination activities
• OGP (Positioning and Survey) Initiative
• Refinement of practical suggestions discussion
  of next steps
• Adjourn

4
Welcome and Introductions

• Welcome and Logistics
• Introductions
• Please state
• Your name and company
• Your current role and responsibilities
• Your reasons and expectations for participating
  today

5
Meeting Objectives

• To begin to identify
• work practice improvement opportunities that can
  be promoted by the SIG
• collaboration opportunities that can be taken
  forward by the SIG
• To agree on several high value collaborative
  activities for the SIG

6
Membership and SIGs
EnergisticsBoard of Directors Management
Staff Advisory CouncilMembership

SIGs are standardsuser communities
PRODML SIGParticipants
WITSML SIG
RESQML SIG
Other SIGs
Energistics StandardsWITSML, PRODML, etc.
7
Energistics Subject Areas
Asset/DataManagementSIG
AssetManagement
ltRESQML/gt
Reservoir

Reservoir

Production

Production

SIG
Geology SIG
Engineering
Engineering
Geology
Geology
eRegulatory SIG
Expl

Petrophysics
Petroleum

Expl

Petrophysics
Petroleum

Geology
Engineering
Geology
Engineering
Industry Services SIG
Drilling

Production

Facilities

Drilling

Production

Facilities

ltenergyML/gt
Engineering
Engineering
Engineering
Engineering
Engineering
Engineering
Completion
Drilling
Production

Drilling

Completion

Production



Geophysics
Operations
Workover
Operations
Geophysics
Operations
Workover
Operations
Geophysics SIG
ltWITSML/gt
ltPRODML/gt
SIG
SIG
7
8
Geophysics SIG

• Headlines
• Formal assessment study of work practice
  improvement opportunities published
• A member review meeting (October)
• Plans
• SEG relationship strengthening
• RESQML relationship
• Interpretation models
• Presence in India
• Identify viable activities for the SIG
• Member meetings (March 12, )
• Recruiting participation
• Collaboration site

GeophSIG
Geophysics
9
(No Transcript)
10
Best Practice Recommendations

• Principles
• Life cycle data procedures
• Data ownership responsibilities
• Sufficient resources to manage data
• Use industry standards
• Work Practice Improvement Opportunities
• Geodetics and CRS
• Service and data acquisition agreements
• Data compression
• Survey and line names
• SEG-Y rev1, SEG-D rev 3, SEG-Y/SEG-D alignment
• Integrate position and trace data
• Improve logs and reports
• Improve trade data evaluations

11
Highlights of the 2008 Study

• Identifies typical delays in Acquisition,
  Processing, Interpretation (API) and Data
  Management life cycle
• Identifies opportunities for improved use of
  existing and rapid uptake of imminent SEG
  standards
• Recognizes need for greater standardization to
  enable geophysics role in Integrated Operations
• Recognizes need for collaboration with SEG and
  OGP
• Outlines guidelines for improved work practices

12
Energistics Study on Delays
13
ONGC Presentation Dr J.V.S.S.N. Murthy
14
Topics for Discussion

• Geophysical Best practices elaborated
• Input to or promotional activities for SEG TSC
• Specifications definition
• RESQML coordination activities

15
Geophysical Best practices elaborated

• Guiding Principles
• Enabling Work Practice Improvements
• Routine Work Practice Improvements

16
Guiding Principles

• Define Life Cycle Data Procedures
• Define Ownership Responsibilities
• Assign Sufficient Data Resources
• Use Available Data Standards

17
Enabling Work Practice Improvements

• Geodetic and Projected Coordinate Reference
  Systems
• Service and Acquisition Agreement Templates
• Data Compression Techniques
• Survey and Line Names

• SEG-D revision 3, SEG-Y revision 1
• SEG-Y / SEG-D Alignment
• SEG SPS / SEG-D Alignment Data Management
• Data Management
• General Metadata for data management and auditing

Note Underlined subjects were high priority on
March 12th.
18
Routine Work Practice Improvements

• Position and Trace Data Integration
• EPSG Geodetic and Projected Coordinate Reference
  System List Use
• Observers Log Use
• Position Data and Survey Report Use

• Processors Log Use
• Acquisition Agreement Template Use
• Trade Data Evaluation
• SPS Land 3-D Survey QC

19
Collaboration with SEG

• Possible inputs or promotional activities 
• Units of Measure in SEG-D Rev 3
• Usage guidelines for SEG-D Rev 3 ?
• Promotion of SEG-Y Rev 1, SEG-D Rev 3 ?
• Requirements for SEG-Y / SEG-D alignment ?
• Other??

20
Specifications definition

• Content standard for Observers Log
• Content standard for Survey Report (ref OGP)
• Content standard for Processing Log
• Exchange standard for Velocity Data
• Proposal in hand
• Will re-use Energistics XML assets (content and
  architecture)

21
Velocity Function Outline Schema

• velocityFunctionSetdocumentInformation
  seismicSurvey surveyKind
  (e.g. 2D or 3D)
  seismicWaveKind indexKind
  indexUnit coordinateReferenceSystem
  velocityFunction velocityFunctionID
  (Choice of (2-D seismic, 3-D seismic, well))
  positionTuple
  
  seismicDatum (to be clarified)
  listOf(velocityKind
  , velocityUnit)
  VelocityTupleSet indexValue,
  listOf(velocityValue), reflectorID, horizonName
  indexValue, listOf(velocityValue),
  reflectorID, horizonName
  indexValue, listOf(velocityValue), reflectorID,
  horizonName indexValue,
  listOf(velocityValue), reflectorID, horizonName
  indexValue, listOf(velocityValue),
  reflectorID, horizonName
  indexValue, listOf(velocityValue), reflectorID,
  horizonName indexValue,
  listOf(velocityValue), reflectorID, horizonName
  indexValue, listOf(velocityValue),
  reflectorID, horizonName
  indexValue, listOf(velocityValue), reflectorID,
  horizonName ... ...
  velocityFunction
  ... ...

22
Velocity Function - Issues

• Is there value in using the same XML schema for
  velocities from wells as from seismic?
• Who will add to the list of velocity types
  (average, rms, interval, etc.?
• Is there ever a need to mingle velocities for
  different wave types in one data set?
• What is the meaning of seismicDatum, or Datum
  Time? Is the seismicDatum always a time, never a
  depth? (What about in well data?)
• Do we need to handle anisotropy? Now or later?
  What are the detailed requirements for this?
• The method (algorithm, interpolation technique,
  manual) by which the velocity function was
  created should be captured. (Doug Gregory,
  Chevron, raised at SIG meeting Houston 12 March
  2009)
• Others?

23
Velocity Function Enumerated Lists

• indexKind
• one-way-time, two-way-time, depth, measured
  depth
• surveyKind
• well check-shot, VSP, uphole, 2-D seismic, 3-D
  seismic ...
• velocityKind
• average, rms, interval, stacking, migration ...
• seismicWaveKind
• P, S, SH, SV ...

24
 RESQML coordination activities

• RESQML is the successor to the RESCUE C
  libraries for exchange between Geological
  (static) and Reservoir Simulation (dynamic)
  models
• RESQML will be compliant with other Energistics
  MLs
• Geophysical Interpretations produce structural
  and property models which provide horizon, fault
  and other data into Geological and Reservoir
  models
• There is a requirement that the data and
  meta-data of the geological objects should be
  consistently represented at both levels
• Process history and audit data are also needed

25
OGP (Survey Positioning) Initiative

• Oil and Gas Producers Association
• Have custodianship of former UKOOA and SEG
  seismic position data formats and of EPSG
  Geodetic Dataset
• New Initiative proposes to modernise
• P1 (post-processing) position data exchange
  formats
• P2 (pre-processing) position data exchange
  formats
• P6 seismic binning standard
• P7 (post-processing, archive) deviated well path
  data
• Requirements Questionnaire gathering user
  requirements results to be presented in April
• Plan to complete revisions by end 2009
• SEG D revision 3 will reference current PN
  formats

26
Practicalities

• Refine suggestions
• Recommendations from March 12 Meeting
• General metadata for data management and auditing
• Agreement templates by work practice profile
• Standard dataset names and identifiers
• Processor Log work practice improvements
• Velocity function specifications
• Coordination with RESQML SIG
• Next steps
• Web conference on March 26 at 0900 Houston,
  1400 UK, 1500 Europe, 1930 India
• Refinement of proposed collaborative activities
  into timelines and calls for participation.

27
Adjourn
Questions?Thank You!
More Information fromAlan Doniger
ltAlan.Doniger_at_energistics.orggtPaul Maton
ltPaul.Maton_at_ energistics.orggt