Borehole image logging has been used in various fields by measuring the dip and strike characteristics of the fractures. In this study, we conducted an experiment on the fractured borehole model to understand the possibility of estimating the aperture width using ATV data. We used ATV tool from Mount Sopris in the US and Robertson Geologging in the UK. The diameter of the borehole model is 3 inches, the dip angle are 0, 30, 60, and 90, respectively, and the aperture width are 1, 2, 3, and 5 mm, respectively. To investigate the relationship between the fracture borehole model and the ATV measured data, the amplitude and the travel-time data were carefully analysed. As a result of the test, in case of the dip angle is 0, the aperture width should be at least 3 mm. As the dip angle increases from 30 to 60 degrees, the aperture width can be more easily distinguished, but it tends to be measured larger than the actual. When the dip angle is 90 degrees, it is possible to distinguish the 2 mm aperture width. It is recommended that amplitude data be used rather than observational data when estimating aperture width


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  1. Genter, A. and Traineau, H.
    [1996] Analysis of macroscopic fractures in granite in the HDR geothermal well EPS-I, Soultz-sous-Forets, France, J. Volcanology and Geothermal Research, 72, 121–141.
    [Google Scholar]
  2. Poppelreiter, M., Carcia-Carballido, C. and Kraaijveld, M.
    [2010] Dipmeter and borehole image log technology, AAPG Momoir 92.
    [Google Scholar]
  3. Sausse, J. and Genter, A.
    [2005] Types of permeable fractures in granites, In: Havey, P. K., Brewer, T.S., Pezard, P.A. and Petrov, V.A. (Eds) Petrophysical Properties of Crystalline Rocks. Geological Society, London, Special Publications 240, 1–14.
    [Google Scholar]
  4. Williams, J. H., Paillet, F. L.
    [2002] Using flowmeter pulse tests to define hydraulic connections in the subsurface: a fractured shale example, J. Hydrology, 265, 100–117.
    [Google Scholar]
  5. Williams, J. H. and Johnson, C.D.
    [2004] Acoustic and optical borehole-wall imaging for fracturedrock aquifer studies. Journal of Applied Geophysics, 55, 151–159.
    [Google Scholar]
  6. Zemanek, J., Caldwell, R.L., Glenn, E.E., Holcomb, S. V., Norton, L. J., and Straus, A.J.
    [1969] The borehole televiwer - A new logging concept for fracture location and other types of borehole inspection, J. Pet. Tech., 21, 762–774.
    [Google Scholar]

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