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Enpro Subsea completes latest subsea enhanced production campaign in Ghana

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Oilfield Technology,


Production optimisation specialist, Enpro Subsea, has completed two subsea hydraulic intervention campaigns for two operators in West Africa. Operations were conducted from a single Multi Services Support Vessel, which was mobilised out of Takoradi, Ghana.

The first of the two campaigns saw Enpro's Flow Intervention Services (FIS) team deliver scale squeeze operations on five separate subsea wells via a modified choke insert in 1800 m (6000 ft) water depth. The second campaign utilised the same vessel and hardware, and included acid stimulation operations via a hot stab connection onto a further five wells at 1300 m (4200 ft), for a different operator.

In 2017, the Aberdeen headquartered company first supplied its FIS hydraulic intervention package into the region. The system provides the capability to transfer the stimulation treatments from a vessel's pumps to the subsea well via an integrated deployment and subsea safety system - the Subsea Safety Module (SSM) - which sits on the seabed and connects to both the downline and adjacent XT or manifold via a composite pipelines. This first-generation 10 000 psig rated solution, designed for air freight and to service the maximum well stock has been deployed from a range of vessel types, offering the operator maximum flexibility.

Following the success of the 10 000 psig FIS system in Ghana, Enpro showcased its second generation 15 000 psig version at Offshore Europe 2019 in Aberdeen before sending it to the Gulf of Mexico region for further trials. Rated for 3048 m (10 000 ft) water depth, it encompasses additional functionality and enhanced safety features. In addition to hydraulic intervention of the wells, the new system is configurable for other subsea treatments, including hydrate remediation, flow line flushing and well kill.

As well as its FIS system, Enpro Subsea has seen the region adopt its patented Flow Access Module (FAM) technology. FAM provides a 'USB' within the subsea jumper envelope which is currently being used for both multi-phase and single-phase metering. The same FAM flow access hub can also be used for hydraulic intervention in the future.

Read the article online at: https://www.oilfieldtechnology.com/offshore-and-subsea/19112019/enpro-subsea-completes-latest-subsea-enhanced-production-campaign-in-ghana/

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