Role of the ChairOGP - update

by

Richard WyldeGeodetic Advisor, ExxonMobil

Chair OGP Geomatics Committee

User needs on energy and minerals data and services

Energistics W Europe Region Meeting

31st May 2011 London, UK

Who are the OGP?

• Formed 1974.

• Members produce half world’s oil and one

third of its gas.

• London office (global affairs) since 1974.

• Brussels office (EU) since 1992.

• Representing some 30 OGP members

active in Europe and 72 worldwide.

International Association of Oil and Gas Producers (OGP)

Global standards used locally worldwide

The OGP Geomatics Committee

• Formed in 2005 from the European Petroleum Survey Group (EPSG).

• Previously known as the Surveying & Positioning Committee.

• Comprises of specialists from OGP member companies working in the areas

of surveying, geodesy, cartography and geo-spatial information/coordinate

data management.

• It is the single global source for positioning

advice, guidance and formats provision for

the upstream oil and gas industry.

Global standards used locally worldwide

• EPSG Geodetic Registry http://epsg-registry.org/

• GIGS (Geospatial Integrity of Geoscience Software – shortly to be released)

• Data Exchange Formats• P1, P2 positioning data (under revision, shortly to be released)

• P6 Seismic Bin Grid definition (soon to be revised)

• P7 Wellbore Deviation Survey (soon to be revised)

• Data Models• SSDM (Seabed Survey Data Model – recently released at ESRI PUG)

• Standard Legend (under consideration)

• Liaison and technical co-operation with other standards bodies • SEG (SEG Y, SEG D, SPS & Seismic Data Management Technical Committee)

• Energistics (WITSML, PRODML, RESQML)

• ISO (TC211)

Main Deliverables

Global standards used locally worldwide

The OGP Geomatics Committee

North

PARENT WELL

INCLINATION

SIDETRACK WELL

AZIMUTH

WELL REFERENCE POINT (WRP)(eg. mud line, ground level)

VERTICAL REF. DATUM (VRD)(eg. MSL, LAT)

ZERO MEASURED DEPTH (ZMD)(eg. rotary table,kelly bushing)

Note: ZERO TRUE VERTICAL DEPTH

(ZTVD) will typically coincidewith either the ZMD or the VRD

SIDETRACK DEPTH(KICK-OFF DEPTH)

• GN-14 CRSs in Reserves Unitisation Agreements.• GN-16 QC of proposed Well coordinates.• GN-17 Coordinate Transformation in Gulf of

Mexico.• GN-18 Guidelines for the conduct of offshore

drilling hazard surveys (recently released).• GN-19 Guidelines for GNSS positioning in the Oil

& Gas industry (shortly to be released).

Technical Guidance Notes

Global standards used locally worldwide

• GN-1 (Geodetic Awareness).• GN-2 (Use of Bin Grids in Workstations).• GN-3 Contract Area Definition.• GN-4 Use of the ITRF.• GN-5 CRS definition.• GN-7 EPSG Geodetic Parameter Dataset.• GN-10 Geodetic Transformations offshore Norway.• GN-13 Datum Transformation evaluation & use.

The OGP Geomatics Committee

Recent developments

• Seabed Survey Data Model • Oil and Gas Earth Observation Group (OGEO) • Industry Guideline or Specification for Cartographic

Symbology• General Geo-Information Guidance note• Development of Ice Atlas methodologies• Spatially Enable the EPSG Database

Geodesy

Subcommittee

Geophysics Support

Subcommittee

Geo Information Management

Subcommittee

Sub-Surface Support

Subcommittee

Geomatics Committee

Survey Operations

Subcommittee

In progress.......

Recent developments

• 3D Bin Grid Task Force Removing the ambiguity and improving interoperability

between applications • A P6 format description, possibly integrated in P1/11• A Guidance Note• A possible extension to the GIGS test data set • A shape file standard for 3D bin grids

• GIGSGeospatial Integrity of Geoscience Software• To provide geoscience software developers and users

with recommended industry best practice to:o evaluate the capabilities of their software with respect to

- establishing and maintaining geospatial data integrity

What is a GIGS software review?

A GIGS software review is a structured approach to evaluating the geospatial integrity aspects of software and consists of:• a qualitative evaluation of the software’s geospatial

capability by means of a series of checklists;• a quantitative evaluation of the software’s capabilities

by means of test data.

Software developers and users (i.e. both software vendors and clients) may execute such a GIGS review and both will benefit from its results.

Useful Glossary of Terms(the GIGS review)

Thank You

Questions?

The GIGS Review Process

To facilitate ease of understanding, the review process has been split into a number of aspects, for each of which a test procedure has been defined:

1. Documentation and Release Notes2. Pre-defined Geodetic Parameter Library 3. User Defined Geodetic Parameter Library4. The User Interface5. Data Operations6. Audit Trail 7. Deprecation (related to use of EPSG Dataset – see section

2.5.1)8. Error Trapping

These aspects are reflected in groupings, referred to as Test Series. The individual tests are numbered for the purpose of reporting

Test Series banner

Header line

Test criterion

Response to test criterion reflecting software capability

Evaluation results

The GIGS Checklist