Wellsite Information Transfer Specification

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The Wellsite Information Transfer Specification (WITS) is a specification for the transfer of drilling rig-related data. This petroleum industry standard is recognized by a number of companies internationally and is supported by many hardware devices and software applications.[citation needed]

WITS is a multi-layered specification:

  • Layer 0 describes an ASCII-based transfer specification
  • Layer 1 describes a binary-based format based on 25 predefined fixed-size records and the (LIS) data-transmission specification
  • Layer 2 describes bidirectional communication using LIS Comment records
  • Layer 2b describes buffering of data
  • Layer 4 extends the previous layers to use a different data exchange format, RP66

Though still in active use as of 2013, the specification has been superseded by the XML-based WITSML.

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