Characterization of the mechanisms controlling the permeability changes of fractured cements flowed through by CO2-rich brine.

@article{Abdoulghafour2013CharacterizationOT,
  title={Characterization of the mechanisms controlling the permeability changes of fractured cements flowed through by CO2-rich brine.},
  author={Halidi Abdoulghafour and Linda Luquot and Philippe Gouze},
  journal={Environmental science & technology},
  year={2013},
  volume={47 18},
  pages={
          10332-8
        }
}
Experiments were conducted to assess the potential impact of fractured well-cement degradation on leakage rate. Permeability was monitored while CO2-enriched reservoir-equilibrated brine was flowed at constant rate through a single fracture in a class G cement core under conditions mimicking geologic sequestration environments (temperature 60 °C, pressure 10 MPa). The results demonstrate that, at least for the conditions used in the experiment, an initial leakage in a 42 μm aperture fracture… CONTINUE READING
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