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Format

Log ASCII Standard Format

Summary

Name
Log ASCII Standard Format
Version
3.0
Identifiers
PUID: fmt/391
Format type
  • Text (Structured)
  • Dataset
Description
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
Release date
06 Jun 2000
Format encoding
Text
Note
Specifications available at: http://www.cwls.org/las_info.php
File extensions
las
Submitted by
Digital Preservation Department / The National Archives
Developed by
Canadian Well Logging Society / Canadian Well Logging Society

Relationships

Is subsequent version of

Internal signatures

Log ASCII Standard 3.0

Description
Header ASCII: ~VERSION or ~Version, followed by version and standard information (VERS. 3.0 CWLS (LOG ASCII STANDARD|LAS) VERSION 3.0 and then mandatory logging Well Information section beginning ~W (ELL|ell)
Provenance
Ongoing DROID research

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
7E56(455253494F4E|657273696F6E)*564552532E*332E30{0-1}3A{0-3}43574C5320(4C4F47204153434949205354414E44415244|4C4153){1-3}56455253494F4E20332E30*7E57(454C4C|656C6C)
Endianness
None

Changelog

  • V55

    Release date
    4 January 2012
    • Added format

      Log ASCII Standard Format 3.0: Outline entry added.

    • Added signature

      Log ASCII Standard Format 3.0: Signature developed through PRONOM Research.