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Presentation RSE 17001265

Geological and numerical modeling to support the production and storage of natural gas

Presentation

ENEA Simulazione del sistema energetico e della sua sostenibilitĂ , 5, Luglio-2016.

Request Document (9.63 MB, .pdf)

G. Agate (RSE SpA), R. Guandalini (RSE SpA) , F. Moia (RSE SpA) , F. Colucci (RSE SpA)

ACCUMULO 2016 - Energy storage materials and technologies for the electric system

The present research has been performed with the goal to study a methodology to characterize the hydrocarbon reservoirs and its application to a test case has been shown. More precisely, by means of numerical simulations, the industrial process related to the production and storage of natural gas in Lombardia region (close to the Concessione Sergnano Stoccaggio) is discussed.

The natural gas storage in underground structures known as geological reservoirs plays a key role in the Italian energy system. The gas storage satisfies various needs such as responding to the gas market demands,ensuring wide margins in the management of production facilities and transport nets and ensuring the maintenance of strategic reserves that are used exclusively to deal with exceptional situations.

The present research has been performed with the goal to study a methodology to characterize the hydrocarbon reservoirs and its application to a test case has been shown. More precisely, by means of numerical simulations, the industrial process related to the production and storage of natural gas in Lombardia region (close to the Concessione Sergnano Stoccaggio) is discussed.

The methodology pointed out for the site characterization foresees the information collection about the geological formations, the creation of a static geological model and then the realization of a corresponding3D fluid dynamic model.

In the shown case, the geological reservoir suitable for gas storage is located in the conglomerate formation known as Sergnano Gravel while the caprock is identified in the overlying clay formation known as SanternoClay.

The numerical simulation results have confirmed the sustainability of the gas extraction and injection processin safety conditions, being the overpressures and underpressures occurring during the cycle always in the allowed range.

These results also confirmed the goodness of the methodology and reliability of the instruments used when they are applied to the gas field analyses.

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