Open AccessDetermination of Archie’s Tortuosity Factor from Stoneley Waves in Carbonate Reservoirs
Author(s) -
Keyvan Khayer,
Adel Shirazy,
Ареф Ширази,
Abdolhamid Ansari,
Hamed Nazerian,
Ardeshir Hezarkhani
Publication year - 2021
Publication title -
international journal of science and engineering applications
Language(s) - English
Resource type - Journals
ISSN - 2319-7560
DOI - 10.7753/ijsea1008.1001
Subject(s) - tortuosity , saturation (graph theory) , porosity , geology , mineralogy , lithology , electrical resistivity and conductivity , thermodynamics , geotechnical engineering , mathematics , petrology , physics , combinatorics , quantum mechanics
One of the fundamental equations in calculate the saturation of fluid in hydrocarbon reservoirs is the Archie’s equation. In addition to the parameters measured by well logging such as porosity and resistivity, there are others parameters that called Archie’s coefficients. Archie provides constant values for this coefficient base on experimental core’s data, accordance with saturation formula in sandstone. In carbonate reservoirs nevertheless the sandstone reservoirs, high heterogeneity, variety in lithology and texture, shape and distribution of pores, due to this coefficient is not constant. So, variation of tortuosity as a coefficient that depends on the way correlation between pores, is high and considering a constant value due to error in calculation of fluid saturation. In this study, with the stoneley waves measured from DSI tools and required calculation, the value of tortuosity coefficient calculated continuously in well no.10 Darkhovin field. The regression of calculated values with the core data is 83.16 percent, that showed this method is useable for calculation the tortuosity.