Methods and systems for calibrating acoustic receivers

A method for in-situ calibrating acoustic receivers while the tool is in an open or cased borehole or during a logging run in a borehole. The method and system facilitate calibrating the acoustic receivers while they are mounted to a downhole acoustic tool. Calibrating the acoustic receivers in situ...

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Bibliographische Detailangaben
Hauptverfasser: Garcia-Osuna, Fernando, Ikegami, Toru, Pistre, Vivian, Chang, Shu-Kong, Morikami, Yoko
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for in-situ calibrating acoustic receivers while the tool is in an open or cased borehole or during a logging run in a borehole. The method and system facilitate calibrating the acoustic receivers while they are mounted to a downhole acoustic tool. Calibrating the acoustic receivers in situ provides more accurate results than previously available. The method and system provide separate compensation factors for the acoustic receivers at different frequencies and for different transmission sources. The separate compensation factors facilitate more accurate signal acquisition over a wider range of conditions.