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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.〔(Wellsite Information Transfer Specification documentation )〕 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 Log Information Standard (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to use a different data exchange format, (RP66 ) Though still in active use as of 2013, the specification has been superseded by the XML-based (WITSML ). == References == 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wellsite Information Transfer Specification」の詳細全文を読む スポンサード リンク
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