Small-scale CO2 injection into a deep geological formation at Heletz, Israel

Auli Niemi, Jacob Bensabat, Fritjof Fagerlund, Martin Sauter, Julia Ghergut, Tobias Licha, Thomas Fierz, Gabriele Wiegand, Maria Rasmusson, Kristina Rasmusson, Vladimir Shtivelman, Michael Gendler

Research output: Contribution to journalConference articlepeer-review

26 Scopus citations

Abstract

This paper presents the experimental plans and designs as well as examples of predictive modeling of a pilot-scale CO2 injection experiment at the Heletz site (Israel). The overall objective of the experiment is to find optimal ways to characterize CO2 -relevant in-situ medium properties, including field-scale residual and dissolution trapping, to explore ways of characterizing heterogeneity through joint analysis of different types of data, and to detect leakage. The experiment will involve two wells, an injection well and a monitoring well. Prior to the actual CO2 injection, hydraulic, thermal and tracer tests will be carried out for standard site characterization. The actual CO2 injection experiments will include (i) a single well injection-withdrawal experiment, with the main objective to estimate in-situ residual trapping and (ii) a two-well injection-withdrawal test with injection of CO2 in a dipole mode (injection of CO2 in one well with simultaneous withdrawal of water in the monitoring well), with the objective to understand the CO2 transport in heterogeneous geology as well as the associated dissolution and residual trapping. Tracers will be introduced in both experiments to further aid in detecting the development of the phase composition during CO2 transport. Geophysical monitoring will also be implemented. By means of modeling, different experimental sequences and injection/withdrawal patterns have been analyzed, as have parameter uncertainties. The objectives have been to (i) evaluate key aspects of the experimental design, (ii) to identify key parameters affecting the fate of the CO2 and (iii) to evaluate the relationships between measurable quantities and parameters of interest.

Original languageEnglish
Pages (from-to)504-511
Number of pages8
JournalEnergy Procedia
Volume23
DOIs
StatePublished - 2012
Externally publishedYes
Event6th Trondheim Conference on CO2 Capture, Transport and Storage, TCCS 2012 - Trondheim, Norway
Duration: 16 Jun 201218 Jun 2012

Keywords

  • Injection experiment
  • Instrumention
  • Modeling

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