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Site overview

The Beynes underground natural gas storage site located around 20 kilometres west of Versailles in the Parisian region was the first aquifer storage site in France.

This site has two superimposed reservoirs, Upper Beynes* and Deep Beynes**, at different depths and in different geological strata. The surface facilities are at the same location.

The site renovation project, now in progress, is designed to maintain the facilities’ operation for several more decades and improving safety while reducing the site’s environmental impact.

The compressors for the new facilities will have a more efficient technology thereby eliminating all greenhouse gas emissions and significantly reducing noise pollution. Located at a major junction in the natural gas transport network, Beynes plays a key role in securing gas supply to the Parisian region.


Technical characteristics:
Type: aquifer storage
Commissioning: 1956
Type of gas stored: type H (high calorific)
The Beynes site is composed of two superimposed reservoirs: Upper Beynes* and Deep Beynes**
Geological strata: lower cretaceous*/upper jurassic**
Reservoir depth: 430 metres* and 740 metres**
Number of operation wells: 13*/23**
Number of control wells: 14*/12**
Maximum storage volume: 1,185 million m³ at STP***

***m³ at STP = cubic metres at standard temperature and pressure: quantity of natural gas which at 0°C and under atmospheric pressure occupies a volume of one cubic metre.


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Community involvement

Year after year, Storengy renews its commitment to the social and cultural life of the Beynes community. The company works with the Beynes City council and the "Touches de Jazz" association. Storengy also sponsors the Beynes Minibus, a social and sports initiative.

Learn more

The structure of an aquifer site

storage in natural aquifers

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