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Signatures
External signatures File extension: las
Internal signatures
Name Log ASCII Standard 2.0
Description Header ASCII: ~V followed by version and standard information (VERS. 2. CWLS (LOG ASCII STANDARD|LAS) VERSION 2.) and then mandatory logging data recorded in Well Information Section (~W), Curve Information section (~C), and ASCII Log Data section (~A).
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 264
Byte order  
Value 7E56*564552532E*322E*(4C4153|43574C53)20(4C4F47204153434949205354414E44415244|4C6F67204153434949205374616E64617264|6C6F67204153434949205374616E64617264|4C4153){1-3}56(455253494F4E|657273696F6E)20322E[30:31]*7E57*7E43*7E41
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