Title :
Method of retrieval of media structural parameters from frequency dependence of transmission coefficient
Author_Institution :
Dept. of Appl. Space Phys., Acad. of Sci., Moscow, Russia
Abstract :
Presents the method of prompt retrieval of average radius and variance of the particle sizes of the medium. The method is based upon the scattering effect of electromagnetic wave by medium consisting of closely packed discrete scatterers, when the wavelength is comparable to scatterer´s size. In this case transmission coefficient will depend critically on electromagnetic wavelength. The author discusses the application of their method for the retrieval of structure parameters of the test samples of oil-bearing rocks (without oil). It is necessary to know these parameters for prediction of oil outflow. Oil under pressure of water is driven out from rock and this process depends on microstructure of oil-bearing rocks. It is shown that the rock microstructure parameters deduced from the author´s method agree with those obtained from photographic image processing. This agreement is accurate to 10%
Keywords :
geophysical techniques; microwave measurement; millimetre wave measurement; rocks; average radius; closely packed discrete scatterers; electromagnetic wave scattering; frequency dependence; geophysical measurement technique; laboratory method; microwave method; oil-bearing rock; particle size; petroleum geology; porous rock sample; rock microstructure; structural parameter; transmission coefficient; Electromagnetic scattering; Frequency dependence; Frequency measurement; Log-normal distribution; Particle scattering; Permittivity; Petroleum; Rough surfaces; Surface roughness; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516659