Method and apparatus for seismically surveying an earth formation in relation to a borehole

Method and apparatus for seismically surveying an earth formation in relation to a borehole

The present invention provides a new and unique method, sensor, and apparatus for performing a seismic survey of an earth formation in relation to a borehole. The method includes arranging at least one strain seismic sensor in conjunction with a borehole structure, and mechanically coupling the bore...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HARDAGE BOB A, GYSLING DANIEL L, ZHAO XIAOMIN, OGLE PETER C, BOSTICK FRANCIS X, DAVIS ALLEN R, KERSEY ALAN D, WU JIAN-QUN
Format: Patent
Sprache:eng
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:The present invention provides a new and unique method, sensor, and apparatus for performing a seismic survey of an earth formation in relation to a borehole. The method includes arranging at least one strain seismic sensor in conjunction with a borehole structure, and mechanically coupling the borehole structure to the borehole to allow seismic data to be accurately transferred to the sensor. The sensor is preferably a fiber optic sensor, including a Fiber Bragg Grating which may be coupled to a relevant borehole structure in a number of ways.