North Sea Natural Resources (NSNR) is offering equity in licence P2321, which contains the Devil's Hole Horst structure, to interested joint venture partners/investors in return for an investment in the seismic and exploration/appraisal well work program. The Devil's Hole Horst primary target is a Jurassic sand, which is estimated to contain mean prospective resources of 1.26 Bbbl with a chance of success of 34%. The Upper Zechstein Dolomite Z3 target has mean prospective resources of 34 MMbbl and the Lower Zechstein Dolomite Z1 target is estimated to hold mean prospective resources of 531 MMbbl. NSNR has derived a 75% and 60% chance of success for the Z3 and Z1 dolomitic intervals, respectively. The future work program involves the acquisition of 284 km of high resolution 2D seismic that is to be acquired in 2020 (estimated cost USD 315,000), 225 sq km of high resolution 3D seismic survey that is to be acquired before May 2021 (estimated cost USD 3.8 million) and an exploration/appraisal well to 1,990 m (P50 gross cost: USD 26.8 million). A drill or drop decision will be taken before 15 May 2021. If a drilling decision is taken, drilling will be carried out between 15 May 2021 and 15 May 2023. The work already carried out in the licence involved 3,000 km of 2D seismic acquisition and a well calibrated IGI oil migration study. As of July 2020, NSNR stated the opportunity was still available.   The licence was awarded in the 29th Offshore Licensing Round in May 2017. Devilâs Hole Horst prospect is located in shallow waters of approximately 75 to 80 m. The Jurassic sand primary reservoir target is interpreted as a large stratigraphically closed structure with an area of 282 sq km. The reservoir is charged by a Jurassic graben source kitchen and located on a Palaeozoic structural high. The prospect has similarities to the Johan Sverdrup field in Norway. The Lower Zechstein Dolomite Z1 prospect is a four-way dip closured structure with an aerial extent of 459 sq km. At around five meters thickness, the Upper Dolomite Z3 prospect is too thin to be reliably mapped but is interpreted with confidence to be a four-way closure at the top salt level.  The structure was first targeted in July 1967 by Amoco's 27/3-1 well that discovered a 5 m pay with oil and gas shows. The dry tests on the discovery well failed because of cement damage to the reservoir. Amoco drilled the 27/10-1 well in June 1970, it encountered 53 m net Z1 and Z2 dolomite reservoir with a 0.5 m pay zone and reservoir porosities ranging from 20 â 24%. The ODT was calculated at a depth of 1,365.5 m TVDSS.  Interest in P2321 is currently held solely by North Sea Natural Resources Ltd (100%).
United Kingdom (Forth Approaches B.), P2321, North Sea Natural Resources (NSNR) is offering equity in licence P2321, which contains the Devil's Hole Horst structure, to interested joint venture partners/investors in return for an investment in the seismic and exploration/appraisal well work program. 