GEO ExPro

Exploration Update: Guyana

On 30 August 2018, ExxonMobil announced its ninth hydrocarbon discovery on the Stabroek Block, offshore Guyana.
This article appeared in Vol. 15, No. 5 - 2018

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Exploration Update Guyana: Operator ExxonMobil Announces Ninth Hydrocarbon Discovery Offshore Guyana

ExxonMobil on 30 August 2018 announced its ninth discovery on the Stabroek Block in Guyana after the Hammerhead-1 NFW encountered 60m of what it described as high-quality oil-bearing sandstone reservoir. The wildcat spud on 27 July 2018 with the Stena Carron drillship and was drilled to a TD of 4,225m. The well is located in waters of 1,150m, some 21 km southwest of Liza-1, where ExxonMobil (45%) and partners Hess (30%) and the CNOOC-subsidiary Nexen Petroleum (25%) made the first discovery in the block in 2015 in Late Cretaceous turbidite sandstones. Hammerhead, however, is updip of previous discoveries Liza, Liza Deep, Payara, Snoek, Turbot, Ranger, Pacora and Longtail and found oil in a Tertiary clastic reservoir.

Total recoverable resource of over four Bboe has been estimated by ExxonMobil for the Stabroek Block, with the potential for up to five floating production, storage and offloading (FPSO) vessels producing more than 750,000 bopd by 2025.

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