Whalsay Energy Limited is offering the opportunity for interested partners to farm-in to licence P1078 which contains the heavy oil Bentley field. Whalsay Energy, which holds 100% interest in the field, is looking for a partner(s) to farm-in, take operatorship and move the field through to development. Bentley lies in block 9/3b in the Northern North Sea. It was discovered in 1977 by Amoco with well 9/3-1. The proposed development comprises a standalone development concept, initially targeting the core area of the field. The platform would likely have a 20 well slot design and conventional topside fluid handling facilities based on some of the UK's heavy oil field analogues (Kraken and Mariner) with processing and blending of Bentley crude to export specification. Production capacity would be designed to 45,000 bo/d and 180,000 bw/d. The platform would be connected to a leased Floating Storage and Offloading unit. The 20 wells would likely include 17 dual lateral and Electronic Submersible Pump (ESP) producing wells and three water-injectors. All produced oil will be exported via shuttle tanker. The full field is thought to hold P50 resources of 912 MMbo with the Phase I core area holding 578 MMbo of that. Reserves from Phase I are thought to be 131 MMbo in the P50 case. Cost to first oil is estimated to be USD 729 million at an oil price of USD 60/bbl (Brent). The economic field life is planned to be 35 years. Whalsay Energy see incremental projects as well in the area and is offering flexible farm-out terms.   Bentley is a four-way dip closure with reservoirs in the Dornoch Sandstone Formation and in the Upper Paleocene and Lower Eocene. Porosities of 34% have been seen within the reservoirs and in-situ viscosities of 1,500 cP at a reservoir temperature of 37.5Â°C have been recorded. An oil leg of 120 ft has been proven from the wells, reaching up to 200 ft on seismic interpretation. Xcite was awarded the Bentley block in 2003 under the promote licence scheme and converted it into a Traditional Licence in 2005. The field is classed as heavy with API values ranging from 10 to 12 degrees. Xcite first appraised Bentley in 2007 with well 9/3b-5 which was tested and flowed to surface. Following this well Xcite drilled 9/3b-6 and 6Z which again were successful and proved commercial flow-rates of 2,900 bo/d. In September 2012 Xcite completed a pre-production test with two horizontal wells 9/3b-7 and 7Z. Well 9/3b-7 was drilled into the reservoir close to the OWC to enable water production during the test and the sidetrack was geo-steered for a distance of 2,000 ft (610 m) close to the top of the reservoir. Control valves were installed to control flow from each well. The results of the test highlighted a number of key factors in the analysis of the reservoir and the fluid characteristics. During the test less water was produced than expected, impacting the ratio of oil to water produced and in-turn improving modelling on long-term oil production. The 68 day test produced a total of 148,599 bo that was sold to a refiner in Europe. In 2017 the nearby EnQuest operated Kraken field came onstream and in 2019, also in Quad 9, we have seen Equinor's heavy oil field Mariner also come onstream.   Whalsay Energy Limited holds 100% interest in P1078.  For further information on the opportunity please contact:  Jon Fitzpatrick â jon.fitzpatrick@gneissenergy.com (+44 7780 708900)  Paul Weidman â paul.weidman@gneissenergy.com (+44 7717 426958)  Rosemary Johnson-Sabine â rosemary.johnson-sabine@gneissenergy.com (+44 7565 087386)
Whalsay Energy Limited is offering the opportunity for interested partners to farm-in to licence P1078 which contains the heavy oil Bentley field. Whalsay Energy, which holds 100% interest in the field, is looking for a partner(s) to farm-in, take operatorship and move the field through to development. 