TITLE:
Prediction of Porosity and Density of Calcarenite Rocks from P-Wave Velocity Measurements
AUTHORS:
Abdelaali Rahmouni, Abderrahim Boulanouar, Mohamed Boukalouch, Yves Géraud, Abderrahim Samaouali, Mimoun Harnafi, Jamal Sebbani
KEYWORDS:
Calcarenite Rocks; Porosity; Density; P-Wave Velocity; Regression Analysis; T Student
JOURNAL NAME:
International Journal of Geosciences,
Vol.4 No.9,
November
29,
2013
ABSTRACT: Petrophysical proprieties such as porosity, density,
permeability and saturation have a marked impact on acoustic proprieties of rocks.
Hence, there has been recently a strong incentive to use new geophysical
techniques to invert such properties from seismic or sonic measurements for
rocks characterization. The P-wave velocity, which is non-destructtive and easy
method to apply in both field and laboratory conditions, has increasingly been
conducted to determine the geotechnical properties of rock materials. The
P-wave velocity of a rock is closely related to the intact rock properties, and been measuring the velocity in rock masses describes the rock structure
and texture. The present work deals with the use of a simple and
non-destructive technique, ultrasonic velocity, to predict the porosity and
density of calcarenite rocks that are characteristic in historical monument.
The ultrasonic test is based on measuring the propagation time of a P-wave in
the longitudinal direction. Good correlations between P-wave velocity, porosity
and density were found, which indicated them as an appropriate technique for
estimating the porosity and density.