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| Titel |
Transient two-phase injection of CO2 in a wellbore |
| VerfasserIn |
Víctor Bezos, Jesús Carrera, Luit Jan Slooten, Juan J. Hidalgo |
| 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 |
250100501
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| Publikation (Nr.) |
 EGU/EGU2014-16475.pdf |
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| Zusammenfassung |
| Fluid injection in a pipeline is commonly modeled solving the momentum, energy and mass
balance equations averaged across the section of the pipe. We propose simplifying this set of
complex equations, for cases of moderate velocities, where inertial terms can be neglected.
We approximate momentum conservation by generalizing traditional water conduit
equations (e.g. Darcy-Weisbach equation, Manning’s formula, Hazen-Williams
equation) for compressible, variable density and viscosity fluids. Temperature, density
and mass fractions are computed using the Span and Wagner equation of state.
Viscosity and thermal conductivity are obtained from Vesovic et al and Fenghour et al,
respectively.
We test the validity of the proposed formulation using a model of CO2 injection in a
vertical pipe with wall heat transfer. We consider different inflows and temperatures of the
injected fluid in order to study optimal and safety conditions in the procedure of the injection.
Using boundary conditions, the pipeline model can be coupled to a reservoir model, adding
realism to both.
This work will help to design CO2 injection procedure in the CCS project that will take
place in Hontomín (Burgos, Spain). |
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