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BW sinks new probe at Hibiscus

Norwegian operator aims to dig up more resources for third development phase at Dussafu Marin permit off Gabon

BW Energy has kicked off drilling of an exploration well at the Hibiscus Updip prospect in the Dussafu Marin licence off Gabon with the aim of boosting resources for a third development phase.

The so-called DHIBM-1 probe is targeting the productive Gamba and Dentale reservoirs at a location about 1.5 kilometres updip from the Hibiscus-1 well drilled by the former Arco in 1991.

It is being drilled using jack-up Borr Norve in a water depth of 116 metres, about 56 kilometres off the West African country.

The fresh prospect, matured from 3D seismic, “has the potential, if successful, to add substantial resources” that could be exploited under Phase 3 of the ongoing development of the tract alongside the Ruche and Ruche North East fields, according to partner Panoro Energy’s chief executive John Hamilton.

It is the first probe of a six-well drilling campaign on the Dussafu Marin licence operated by BW Energy, the exploration and production unit of Oslo-listed BW Offshore.

The Borr Drilling-owned jack-up will subsequently be used to sink four consecutive horizontal production wells at the producing Tortue field in the permit under the second phase of development at a cost of $275 million.

The wells will be tied back to the BW Adolo floating production, storage and offloading vessel at Tortue and are due to be brought online in the first quarter of next year.

BW targets third phase at Dussafu

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Once these holes are completed, the rig will be used to drill a further exploration well in the permit next year, with the location yet to be determined from 3D seismic that is presently being reprocessed.

Another two exploration wells could then be drilled based on the results of the preceding wells, according to Oslo-listed Panoro.

BW is looking to looking to invest around $400 million to exploit up to 30 million barrels of oil at the Ruche and Ruche North East discoveries using a wellhead platform at Central Ruche, around 16 kilometres to the north-west of the FPSO, under the third development phase.

Separately, Panoro said it was planning to drill an exploration well at the Salloum West prospect in its operated Sfax Offshore permit off Tunisia later this year.

The permit, operated by Panoro with a 52.5% stake, hosts the Salloum, Ras El Besh, and Jawahra, discoveries with estimated gross recoverable oil resources of 20 million barrels.

However, there is an unrisked gross proven and probable resource estimate of 250 million barrels from “considerable” exploration potential in the permit, according to Panoro.

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