The Norwegian National Data Repository for Petroleum data



4C is an abbreviation for data reported according to the first version of the “Blue Book” where data was delivered on four 8mm cassettes.

The cassettes contained:

  • C1: Raw data
  • C2: Composited data
  • C3: CPI data
  • C4: Scanned images of raw logs and completion logs

This project included in total data from 1378 exploration and development wellbores from the period 1993-2000.

The project name in Diskos is "NPD 4 Cassettes reporting" and there are 41 000 files available from this project.

Updated: 25/07/2022

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