ULTimateCO2 Project: Field Experiment in an Underground Rock Laboratory to Study the Well Integrity in the Context of CO2 Geological Storage - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Energy Procedia Year : 2013

ULTimateCO2 Project: Field Experiment in an Underground Rock Laboratory to Study the Well Integrity in the Context of CO2 Geological Storage

Abstract

Wells drilled through low-permeable caprock are potential connections between the CO 2 storage reservoir and overlying sensitive targets like aquifers and targets located at the surface. The wellbore integrity can be compromised due to in situ operations, including drilling, completion, operations and abandonment or to geochemical degradation of the caprock-cement-casing system. We present here an experimental setup in the underground rock laboratory of Mont-Terri (St Ursanne, canton of Jura, Switzerland): the drilling and well completion in the laboratory will be done in the aim of reconstructing interfaces between the caprock, the cement and the casing steel that would be close to the ones observed in situ. These well features will then be dipped within a CO 2 stream, during a given time period before a final over-coring. Such an experiment should provide new insights on the quality of bounding between casing/cement/clay interfaces and its evolution due to geochemical reactions. In parallel, a modeling effort is performed focused on both geochemical and transport aspects of the interactions between the fluids and the well compartments.
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Dates and versions

hal-03652485 , version 1 (26-04-2022)

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Jean-Charles Manceau, Pascal Audigane, Francis Claret, M. Parmentier, T.J. Tambach, et al.. ULTimateCO2 Project: Field Experiment in an Underground Rock Laboratory to Study the Well Integrity in the Context of CO2 Geological Storage. Energy Procedia, 2013, 37, pp.5722 - 5729. ⟨10.1016/j.egypro.2013.06.494⟩. ⟨hal-03652485⟩

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