1887

Abstract

Summary

Direct observations of propagating hydraulic fractures are currently not possible. Therefore, models of injection operations are needed for the understanding of the fracturing process. We have developed a simple finite element model of hydraulic fracturing based on Biot’s linear poroelasticity and a criterion for fracture propagation. The model is non-linear due to the feed-back from the fracture propagation on the pressure field. The model is calibrated against pressure observations from a well drilled and tested in the valley Adventdalen at Svalbard. The simulation results capture the qualitative behaviour of the observed well pressure. The simulations assume an average lateral permeability in the interval of measured sandstone permeabilities, but the modelling suggests that only 1/5 of the reservoir layer is permeable. The final linear fracture that develops during the injection test extends nearly 1000m long on each side of the injection well.

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/content/papers/10.3997/2214-4609.201412791
2015-06-01
2020-05-31
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References

  1. Braathen, A., Balum, K., Christiansen, H.H., Dahl, T., Eiken, O., Elvebakk, H., Hansen, F., Hanssen, T.H., Jochmann, M., Johansen, T.A., Johnsen, H., Larsen, L., Lie, T., Mertes, J., Mork, M.B., Nemec, W., Olaussen, S., Oye, V., Rod, K., Titlestad, G.O., Tveranger, J. and Vagle, K.
    [2012] The Longyearbyen CO2 Lab of Svalbard, Norway – Initial assessment of the geological conditions for CO2 sequestration. Norwegian Journal of Geology, 92, 353–376.
    [Google Scholar]
  2. Wang, H.F.
    [2000] Theory of Linear Poroelasticity with Applications to Geomechanics and Hydrogeology. Princeton Univ. Press.
    [Google Scholar]
  3. Wangen, M.
    [2011] Finite element modelling of hydraulic fracturing on a reservoir scale in 2D. Journal of Petroleum Science and Engineering, 77, 274–285.
    [Google Scholar]
  4. [2013] Finite element modeling of hydraulic fracturing in 3D. Computational Geosciences, doi:10.1007/s10596‑013‑9346‑2.
    https://doi.org/10.1007/s10596-013-9346-2 [Google Scholar]
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