Prediction of Porosity and Density of Calcarenite Rocks from P-Wave Velocity Measurements

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-destructive 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 we have been measuring the velocity in rock masses and describe 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.

Dimension Effect on the Ultrasonic Pulse Velocity

“…Number of researchers (Kahraman, 2001;Kahraman, 2002;Yasar and Erdogan, 2004;Kilic, 2006;Khandelwal and Ranjith, 2010;Fener, 2011;Rahmouni et al, 2013;Zulfahmi, 2013;Arman et al, 2014;Parent et al, 2015;Arman et al, 2016) have already studied the possible relationships between rock properties and SV values and found that SV values are somehow related with rock properties.…”

Determination of Thermal Conductivity and Porosity of Building Stone from Ultrasonic Velocity Measurements

“…In general, we observe that the high value of the P-wave velocity is obtained for the samples saturated and the low value is obtained for dry samples. The authors Boulanouar et al [7], Guéguen et al [17] and Rahmouni et al [18] compared the velocities P-wave in dry and saturated with water. They generally observed that V P (dry) < V P (saturated).…”

PETROGRAPHIC, PHYSICAL AND MECHANICAL PROPERTIES OF SANDSTONE OF MIRPUR DISTRICT AREA STATE OF AJ&K, PAKISTAN

“…The UCS can be also related to sonic pulse velocity [26]. By regression analysis equation of coefficient determination (R 2 ) the best appropriate relationships were acquired to be well signified by linear regression [17], it enhanced predictable UCS values concluded a broader variety of Sonic Pulse Velocity values . It is possible with Sonic Pulse velocity range of saturated samples from 26.2 to 49.0 km/s and for dry sample the range from 28.4 to 55.8 km/s.…”

“…Misleading result produce for high and low values of Sonic Pulse velocity. Therefore, not be used to validate .The lithology is a estimated aspect for the intention of P-wave velocity [17]. In sedimentary rocks Pwave velocity are great for carbonates and at low P-wave velocity of the sandstones [17].…”

“…Therefore, not be used to validate .The lithology is a estimated aspect for the intention of P-wave velocity [17]. In sedimentary rocks Pwave velocity are great for carbonates and at low P-wave velocity of the sandstones [17]. The exponential function offered a enhanced estimate at lower standards of Sonic Pulse Velocity but it overvalued UCS at higher standards.…”