1887

Abstract

Summary

At Hassi R’Mel field, dual completions could significantly improve output from multi-zone gas wells, but results from intelligent completions look even better.

Dual completions were used for a long time to produce wells perforated in several zones, mostly for oil wells and rarely for gas wells. To improve production in the upper zones of Algerian gas wells, a study was conducted on producing gas wells with two and three zones in Hassi-R’Mel field. Discovered in 1956, this field is 500 km south of Algiers in the Sahara Desert and is one of the world’s largest wet gas reservoirs.

Engineers at the operator, Sonatrach, studied the choice of completion method and suggested installing dual completions for wells with several zones. This study would demonstrate the necessity of using dual completions in gas producers with several reservoirs, to improve upper-zone production and avoid cross-flow from one zone to another. Initial results made it possible to conduct a technical/economic study that showed the effects on the reservoir, well equipment and investment costs.

This article discusses the advantages and disadvantages of dual completions on gas wells, and shows the profit ratio on capital costs after these completions.

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/content/papers/10.3997/2214-4609.201600658
2016-05-30
2024-04-27
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References

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