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Journal of Remote Sensing & GIS | ISSN: 2469-4134 | Volume: 7
&
Geosciences and Remote Sensing
Geochemistry, Environmental Chemistry and
Atmospheric Chemistry
3rd International Convention on
October 19-20, 2018 | Ottawa, Canada
Empirical relationships between geomechanical parameters in one of the oil field, Persian Gulf,
Southeastern Iran
Ghafoori Mohammad
Ferdowsi University of Mashhad, Iran
Measurement of geomechanical properties of rocks, especially static properties, is a timeconsuming and costly process and
requires the preparation of samples. Therefore, indirect methods such as ultrasonic and physical tests are often used to
predict the geomechanical properties such as uniaxial compressive strength (UCS), static Young’s modulus (Es) and Poisson's
ratio. In this paper, Ilam formation in one of the oil field in Persian Gulf, has been studied. Formation lithology in the study
area is mainly composed of Cretaceous limestone and clay limestone. Core analysis for investigation of structural elements was
conducted in large scale. In order to determine the geomechanical properties of reservoir rocks, uniaxial compressive strength,
physical and ultrasonic tests were conducted on 28 core specimens. According to the collected data, empirical relationships for
predicting of UCS, Ed and Poisson's ratio were achieved and compared with previous results for limestone. Also, the UCS values
obtained from the tests were compared with theUCS predicted values from Vp and Ed respectively. Consequently, advisable
method for estimating UCS was investigated afterward, the Es values achieved from the test results were compared with the
predicted values of ES from Vp, Ed and UCS. Then the most appropriate method for estimating Es was investigated. According
to the comparisons, if ultrasonic and density data are available, estimation of the UCS value based on Ed is recommended. As
well as, estimating the Es values from UCS is also more precise.
Biography
Mohammad Ghafoori is the Professor of engineering geology and rock mechanic at Geology Department, Ferdowsi university of Mashhad, Iran. He obtained his
PhD in rock mechanic from Sydney University, Australia under the supervision of the Professor JP Carter and Professor D. W.Airey in 1995. He has published
more than 300 papers.
Ghafoori Mohammad, J Remote Sensing & GIS 2018, Volume: 7
DOI: 10.4172/2469-4134-C2-014