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The UK Continental Shelf – petroleum geology and future opportunities “Breathing new life into a mature province”. Peter Haile and Jim Munns UK DTI. AAPG Salt Lake City 13 th May 2003. British Geological Survey. UKCS Structural Elements. Stratigraphy. Structural Development.
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The UK Continental Shelf – petroleum geology and future opportunities“Breathing new life into a mature province” Peter Haile and Jim Munns UK DTI AAPG Salt Lake City 13th May 2003 British Geological Survey
UKCS Structural Elements
Structural Development Intraplate setting since Permian times: five main tectonic events control HC distribution • Permo-Triassic rifting and thermal subsidence • Middle Jurassic domal uplift • Late Jurassic to Early Cretaceous crustal extension • Post Rift thermal subsidence • Rifting on the Atlantic Margin
Focus of future activity • Syn-rift Upper Jurassic combination /stratigraphic play at basin margin • Lower Cretaceous stratigraphic play • Deep basin axis HPHT play • Lower Permian Rotliegende pinchout play • Atlantic Margin Play • Palaeogeographic play
Source Rock Distribution ? Jurassic mudstones Jurassic mudstones – uncertain distribution Carboniferous coal measures Carboniferous basinal mudstones Regional cross-section
Upper Jurassic stratigraphic play Instantaneous amplitude section: prospect 12/23. Updip pinchout of Ur Jurassic basin-floor sandstones Seismic line courtesy of Fugro-Geoteam AS
Deep basin (HPHT) play 6km offset 2D Seismic Data data Acquired Q4 2000 'Seismic data sample supplied courtesy of Veritas DGC Limited'
Promote Licence – tap into new thinking • Split 4 year Initial Term • First 2 years to enable work up of prospects and attract resource/commitment • Second 2 years to fulfil ‘significant activity’ – normally a well • Low cost • 10% of normal licence fee (first 2 years)
21st Round best since the 1970’s 1 4 7 2 • 30 Traditional • 40 Promote • 140 blocks bid • 75 companies • 36 new companies 5 3 6 2 8
Fiscal Position • Corporation Tax 40% • Decreases • Removal of Royalty • Improved First Year Allowance • Tax reduction on new tariff business • Treasury consultation on stimulating exploration
Summary – why the UKCS? • 10 BBOE plus Yet to Find • 2001 BUZZARD largest UKCS discovery since 1993 • Deep water Atlantic Margin under-explored • Subtle traps and non-conventional plays in the North Sea • 35% E&A well success rate
Conclusions • Full spectrum of opportunities remain • Trying to make the UK a better place to do business – stable, responsive, transparent, competitive • Want to get licenses in hands of those who are ‘hungry and innovative’ – Brian Wilson (UK Energy Minister)