Research Article
Acoustic Logging Methods in Fractured and Porous Formations
Sudad H Al*
University of Hayat, Erbil, Iraq
- *Corresponding Author:
- Sudad H Al
Professor
University of Hayat
Erbil, Iraq
Tel: + 964 750 977 1896
E-mail: drsudad@gmail.com
Received Date: May 04, 2017; Accepted Date: May 11, 2017; Published Date: May 19, 2017
Citation: SH (2017) Acoustic Logging Methods in Fractured and Porous Formations. Oil Gas Res 3: 139. doi: 10.4172/2472-0518.1000139
Copyright: © 2017 Al SH. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Formation fractures have significance importance in the rocks permeability of oil and gas reservoirs. In real conditions, the opening of vertical fractures exceeds the opening of horizontal fractures and the permeability of reservoirs in conditions of horizontal wells is higher than in vertical conditions. For the sonic log longitudinal waves, unlike the transverse waves, the attenuation rate strongly depends on the wave path direction. It is shown that the mechanism of attenuation of sound waves in porous rocks is represented by the scattering of “soft” microheterogeneous inclusions. For reservoir rocks with a porosity coefficient (φ) of (10-20)%, the attenuation decrement is several times higher than the decrement of the other mechanisms.