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| Titel |
Mechanical characterization of a CO2 fractured reservoir by means of microseismicity induced by high pressure injection tests |
| VerfasserIn |
Silvia De Simone, Joaquim Soler, Jesús Carrera, Luit Jan Slooten, Gema Ortiz |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250100434
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| Publikation (Nr.) |
 EGU/EGU2014-16400.pdf |
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| Zusammenfassung |
| Reservoir characterization is an essential issue in geological storage of CO2 in Technological
Development Plant (TDP). In particular, hydromechanical characterization of the
caprock-reservoir system is crucial, in order to define the maximum suitable injection
pressure and the in-situ mechanical properties. Thus, it is possible to conjecture the
hydromechanical behavior of the system during CO2 injection.
Microseismicity induced by fluid injection may be used as instruments to find out
fractured reservoir properties. Indeed, the hydromechanical response is controlled by
permeability (k), Young modulus (E) and Poisson ratio (ν). In caprock-reservoir systems,
reservoir stiffness controls the stress transfer towards the caprock, where failure may occur.
Therefore, the location of the microseismic hypocenters could give information on the
reservoir stiffness.
In this work we propose a simulation and calibration method of the microseismicity
induced by high pressure fluid injection in a fractured reservoir. Coupled hydromechanical
models are peformed. The methology is applied to a particular case study. |
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