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POSC Special Interest GroupPractical Well Log Standards (PWLS)

Norwegian Petroleum Directorate

Tuesday June 15 2004

Eric Toogood, Project Manager Diskos

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Diskos: The Norwegian National Database for Seismic, Well, and Production Data

Objectives Overall

To build and maintain a National Digital Library for well data from the Norwegian Continental Shelf - NCSTo serve the needs of the NPD and allow

access to entitled oil companies The Reporting Procedures

Reported data must be structured and named to be compatible with the National DatabaseThe activity of reporting is aligned as

closely as possible with the oil companies’ normal business needs

The Reporting StandardsThese are set by the database structure.

Now HIGHER than previous industry practice

reportsreports

reportsreports

reportsreports

reportsreports

Well Data is a key data type:

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Well Data in Norway - History

The Diskos group of companies has had an ongoing focus on improving access to well data since the late 1990’s

There has been collaboration with POSC on this issue throughout this period Work performed in Diskos Well Data Work Group in collaboration

with: Petrodata, Flare Consultants, POSC and now Schlumberger (Sinas)

Focus on the clean up and loading of historical (legacy) data Establish streamlined procedures for handling well data throughout

the workflow

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The Importance of PWLS in Norway

Quick and efficient loading procedures and efficient retrieval and transfer of well log data is essential to the Diskos initiative

In order to make the standard work we must have commitment from all the stakeholders

Authorities (NPD) Data base operator (Schlumberger) Operating Oil companies

+ Licence Partners

Service Companies

POSC to develop and manage the standard

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The Aim: Curve level filtering

Load and Index

Index Only

Ignore

Numbers of Curves Business Value

Data Overload “Business Value” is concentrated in a relatively small number of data curves - filtered

views focus on high value data

50,000+'Visible'

AcquisitionCurves

500+‘Useful’Curves

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PWLS Aims

Objectives:

define standards necessary for the creation of an organized,

clearly labeled and accessible well-log database

Concentrate on the long-term data storage problems

Build on existing work and standards where possible

Concepts should be equally applicable to both 'Data' and

'Hard Copy'

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Business Benefits

Reduced costs or increased efficiency significantly lower costs to maintain 'load lists'

less time wasted in identifying data for experts and non-experts

faster data preparation and acceptance for exchange/sale

trades, asset/licence swaps and disposals, mergers

Increased Effectiveness

clear data organisation and naming will improve use and maximise value-add potential

Creating value for Oil Companies and the Norwegian State

More efficient exploration and development

More time spent on “useful work” (rather than looking for data)

Improved decisions

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Transfer of Data and Operations

At the end of 2002 the contract for the management of the Diskos database was awarded to Schlumberger (2004-2008) Through 2003 Diskos focused on the transfer of data and operations

from Petrodata to Schlumberger Diskos was not able to give attention to the PWLS initiative

Last PWLS meeting was held in October 2002

PWLS is again a major priority in Norway Aims:

- Improved access to data already stored in the Diskos database

- Streamline loading procedures for all new well data

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June 2004 meetings (Stavanger/Houston)

Renewed focus on the initiative

POSC must: Identify the most pressing issues that need to be addressed from

- The operator point of view (receipt and loading of data)

- The service company point of view

- The end-user point of view (use of the data)

Decide on a list of “Actions” and time scale for deliverables Coordinate other groups through similar meetings in USA (Houston) Examine and discuss mechanisms for the maintenance and further

development of the standard