Geophone calibration technique

Details Geophone calibration technique Geophone calibration technique

2007-06-05

2007-06-05

Williams, Hezron (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Apparatus for measuring by use of vibration or apparatus for...

C367S013000

Reexamination Certificate

active

10928953

ABSTRACT:
Various techniques are described which may be used to facilitate and improve seismic exploration activities. For example, one aspect of the present invention is directed to a technique for enabling in-situ measurement of geophone response parameters. Another aspect of the present invention is directed to a technique for improving geophone calibration and for improving the accuracy of measurement of geophone response parameters. Yet another aspect of the present invention is directed to a technique for compensating geophone response output data in order to improve the accuracy of such data.

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patent: WO 00/55652 (2000-09-01), None
“The Reciprocity Calibration of Piezoelectric Accelerometers,” by Mark Harrison, A.O. Sykers, and Paul G. Marcotte, The Journal of the Accoustical Society of America, vol. 24, No. 4, Jul. 1952.
Frank van Kann, John Winterflood, “Simple method for absolute calibration of geophones, seismometers, and other inertial vibration sensors”, Review of Scientific Instruments 76, 034501, Feb. 22, 2005 pp. 034501-1-034501-8, American Institute of Physics, 2005.
Lin Jin, “A reciprocity method for calibrating electro-mechanical transducers”, Acta Seismologica Sinica, vol. 2, NO. 4, No. 1980, pp. 447-452, China, Abstract.
A. MacArthur, “Geophone frequency calibration and laser verification”, Gelphysics, SEG, vol. 50, No. 1, Jan. 1985, pp. 49-55.
H-P. Liu, R.E. Warrick, “Effect of cable capacitance on In-situ borehole geophone calibration”, Geophysics, SEG, vol. 63, No. 1, Jan. 1998, pp. 18-24.

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