000			01477nab a2200181 4500
005			20260520001850.0
008			260224s2010 xxu
245	0	0	_aAcoustic impedance inversion approach from petrophysical data
260			_a _b _cago. 2010
270			_a20/09/2010 ; 20/09/2010
300			_a4 p. ; 181-184
520			_aTranscripción del resumen del autor. Acoustic impedance; is a key parameter for seismic and direct geologic interpretation and for detecting lateral lithologic variation; can be defined as the product of density and velocity, in the absence of density data or if the well suffers from rough hole condition and/or irregularities, another approach to determine such important parameter must be used. This paper aims to introduce an empirical relationship for estimating Z (acoustic impedance) using sonic, neutron, gamma ray data and shale, fluid and matrix densities, which is usually available in most wells. This formula depends mainly upon the density response equation and the elastic definition of the impedance. Test and application of the suggested approach in two different wells located in the Gulf of Suez basin in Egypt and in Williston Basin, USA indicates the reliability of proposed formula to calculate such parameters with very high degree of accuracy.
581			_a1-2
773	0		_tJournal of Petroleum Science & Engineering _g73
942			_cARTICULO
100	1		_aMabrouk, W.M. _946900
999			_c177007 _d177007