PARK POSITION FOR A SURVEY TOOL

A gyroscope assembly is maintained in a park position during drilling activities. In the park position, a sensitive axis of a gyroscope in the gyroscope assembly is perpendicular or approximately perpendicular to a longitudinal axis of a downhole tool. Maintaining the park position during drilling a...

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Bibliographische Detailangaben
Hauptverfasser: Katayama, Makito, Steimetz, Julien, Orooq, Zainab, Urbain, Joffroy Dominique Daniel
Format: Patent
Sprache:eng
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Zusammenfassung:A gyroscope assembly is maintained in a park position during drilling activities. In the park position, a sensitive axis of a gyroscope in the gyroscope assembly is perpendicular or approximately perpendicular to a longitudinal axis of a downhole tool. Maintaining the park position during drilling activities reduces the drift bias caused by overloading the input signal of the gyroscope due to rotation of the downhole tool.