EG06 P: Investigation of seismic wave attenuation in carbonate rocks

Fateh Bouchaala, Mohammed Y. Ali, Mohamad S. Jouini, Aala Awad Idriss Mohamed, Jun Matsushima, Syed Nizamuddin

    Research output: Contribution to conferencePaperpeer-review


    Seismic wave attenuation has a great potential for studying saturated and fractured media, due to its high sensitivity to the geotechnical properties of geological media. However, getting an accurate estimation of this parameter is challenging due to its high sensitivity to seismic noise, particularly in heterogeneous media such as saturated and fractured carbonate media. This explains the few numbers of attenuation studies carried out in carbonate rocks compared to sandstones, and still existing ambiguity about attenuation mechanism. To add more light on the topic, we conducted an experimental study to generate ultrasonic waveform signals (0.5-3 MHz) reordered under dry and fully saturation conditions in thirteen samples covering a wide range of geotechnical properties, and subjected them to effective pressure. The resulting increase in attenuation magnitudes and their variation with pressure due to brine saturation were more pronounced than in velocity magnitudes, confirming the higher sensitivity of attenuation to fluid content. However, understanding the relationship between attenuation and geotechnical properties required a careful examination of the results and a good understanding of attenuation mechanism. We suggested that multiple attenuation mechanisms coexist in carbonate rocks, including scattering, cracks slipping, solid frictional relative motion, global and squirt flow.

    Original languageBritish English
    Number of pages6
    StatePublished - 2024
    Event7th International Conference on Engineering Geophysics, ICEG 2023 - Al Ain City, United Arab Emirates
    Duration: 16 Oct 202319 Oct 2023


    Conference7th International Conference on Engineering Geophysics, ICEG 2023
    Country/TerritoryUnited Arab Emirates
    CityAl Ain City


    Dive into the research topics of 'EG06 P: Investigation of seismic wave attenuation in carbonate rocks'. Together they form a unique fingerprint.

    Cite this