CIDAI standard 7 : POSC

The following recommendations from a CIDAI standards committee were approved by the CDA Board on 15th January 1996. Work is now in progress to implement this.

Recommendations

The underlying database structure of CIDAI must be EPICENTRE based and consideration should be given to making the move before any further data sets are added.
[The aim of this recommendation is to ensure that the move to POSC is achieved at minimum cost]
The minimum acceptable level of POSC compliance is EXCHANGE using the semantics of EPICENTRE.
[The aim of this recommendation is to enable companies with POSC compliant databases to fill these with all data items that are necessary to ensure data integrity is maintained.]

Actions

A commitment to POSC must be dated or defined by a phase of work.
Put out press release for benefit of suppliers.
Map existing Phase 1 data model to EPICENTRE.
Submit existing entitlements model to POSC as logical extension to EPICENTRE.
Migrate Phase 1 data model to be a relational footprint on EPICENTRE.

Background

There is a significant commitment to POSC in the contract signed between CDA and QC Data. This commitment for the first phase of work (original format digital well log data), is:

To complete POSC Compliance Statement Template (CST) for Epicentre 2 within 3 months of signing of contract
To provide a mapping from implemented data model to Epicentre
To issue a migration plan to Epicentre for completion by 31 May 1997, plan to be subject to approval of CDA and commercial viability of Epicentre.
To submit suggested changes and updates to Epicentre to POSC by 30 June 1996.
To implement POSC Epigramme Transfer format by 30 June 1996 subject to CDA approval and commercial viability of Epigramme

This initial CIDAI database could be extended in the near future to include other data sets such as

more well data such as tops, well tests, casing , drilling ............
seismic data
licensing data
core details
production data
cultural / mapping data
pipelines data.

As this starts to happen companies will be seeking exchange of quality data. Realistically this will only be achieved with confidence if database referential integrity rules are applied following EPICENTRE rules. Without this, data quality will be difficult to maintain and companies will have to introduce their own quality checks.

Argument

There is complete agreement amongst the major players in CIDAI that CIDAI should develop as a POSC compliant system. The major arguments for this stance are :

Many companies are involved in more than one national data repository initiative and they are seeking standardisation across these initiatives as they review their global data management strategies
EPICENTRE is now a proven platform for national repositories (e.g. Norway and Algeria)
Oil companies in the short/mid/long term are seeking to replace their own corporate databases by third party commercial databases. With an internal company drive to migrate to corporate databases to POSC the migration of commercial databases to POSC is a pre-requisite to harvest the full benefits of the investments in these commercial initiatives
POSC compliance becomes a major issue as the underlying CIDAI database expands and companies begin to use the database as a focus for exchange of more digital data.
It will cost significantly more to move to POSC later.
Some companies have made substantial financial commitment to POSC, (all six sponsors of POSC are members of CIDAI).

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