All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Variations of attenuation and V-P/V-S ratio in the vicinity of wastewater injection: A case study of Costa Molina 2 well (High Agri Valley, Italy)

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10390344" target="_blank" >RIV/00216208:11320/18:10390344 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985891:_____/18:00502459

  • Result on the web

    <a href="https://doi.org/10.1190/GEO2017-0123.1" target="_blank" >https://doi.org/10.1190/GEO2017-0123.1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1190/GEO2017-0123.1" target="_blank" >10.1190/GEO2017-0123.1</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Variations of attenuation and V-P/V-S ratio in the vicinity of wastewater injection: A case study of Costa Molina 2 well (High Agri Valley, Italy)

  • Original language description

    By analyzing seismicity induced by the injection of wastewater into the Costa Molina 2 well, we characterized attenuation in the area. Attenuation quality factors Q P and Q S were calculated using the peak-frequency method, which is suitable for small-magnitude earthquakes registered in the region. Anomalously high attenuation with values of effective Q(P) similar to 48 and Q(P) / Q(S) ratio of less than 1 in the vicinity of the injection well was found, in comparison with Q(P) similar to 60 for the rest of the region. Furthermore, the V-P / V-S ratio was also found to be high in the close vicinity of the injection well. We determine how sedimentary rocks possibly change their geomechanical properties due to salt-water injection and find that observed changes of attenuation (increase) and V-P / V-S ratio (increase) are consistent with the geomechanical models and experiments. Our findings indicate that the observed anomaly in the vicinity of the Costa Molina 2 well is due to the (1) changes of the properties of the rock mass affected by injection and (2) 3D structure in the overburden rocks.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10500 - Earth and related environmental sciences

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Geophysics

  • ISSN

    0016-8033

  • e-ISSN

  • Volume of the periodical

    83

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    "B25"-"B31"

  • UT code for WoS article

    000443595400032

  • EID of the result in the Scopus database

    2-s2.0-85038821007