scholarly journals Chlorite coating patterns and reservoir quality in deep marine depositional systems – Example from the Cretaceous Agat Formation, northern North Sea Norway

2021 ◽  
Author(s):  
Henrik Nygaard Hansen ◽  
Kristoffer Løvstad ◽  
Gildas Lageat ◽  
Sylvain Clerc ◽  
Jens Jahren
Keyword(s):  
North Sea ◽  
Reservoir Quality ◽  
Depositional Systems ◽  
Northern North Sea

The Osprey Field, Blocks 211/18a & 211/23a, UK North Sea*

1991 ◽  
Vol 14 (1) ◽  
pp. 183-189 ◽  
Author(s):  
John W. Erickson ◽  
C. D. Van Panhuys
Keyword(s):  
Crude Oil ◽  
North Sea ◽  
Water Depth ◽  
Middle Jurassic ◽  
Reservoir Quality ◽  
Shetland Islands ◽  
Delta System ◽  
Reservoir Sandstones ◽  
Northern North Sea ◽  
The Uk

AbstractThe Osprey Oilfield is located 180 km northeast of the Shetland Islands in Blocks 211/23a and 211/18a in the UK sector of the northern North Sea. The discovery well 211/23-3 was drilled in January 1974 in a water depth of 530 ft. The trap is defined at around 8500 ft TVSS by two dip and fault closed structures, the main 'Horst Block' and the satellite 'Western Pool'. The hydrocarbons are contained in reservoir sandstones belonging to the Middle Jurassic Brent Group which was deposited by a wave-dominated delta system in the East Shetlands Basin. The expected STOIIP and ultimate recovery are estimated at 158 MMBBL and 60 MMBBL of oil respectively, which represents a recovery factor of 38%. The 'Horst Block' contains 85% of the reserves with an OOWC about 150 ft shallower than in the 'Western Pool'. Reservoir quality is excellent, with average porosities varying from 23-26% and average permeabilities varying from 35-5300 md. The development plan envisages eleven satellite wells, six producers and five water injectors, closely clustered around two subsea manifolds. First production is expected in late 1990/early 1991. The wet crude oil will be piped to the Dunlin 'A' platform for processing and from there to the Cormorant Alpha platform into the Brent System pipeline for export to the Sullom Voe terminal.

Diagnetic history and reservoir quality of a Brent Sand sequence

Clay Minerals ◽  
1984 ◽  
Vol 19 (3) ◽  
pp. 377-389 ◽  
Author(s):  
G. A. Blackbourn
Keyword(s):  
North Sea ◽  
Late Stage ◽  
Middle Jurassic ◽  
Reservoir Quality ◽  
Pore Filling ◽  
Mineral Phases ◽  
Carbonate Cementation ◽  
Early Carbonate ◽  
Northern North Sea

AbstractThe Etive Formation of the Middle Jurassic Brent Group in part of the Northern North Sea comprises dominantly clean, fine- to medium-grained sands, deposited as part of a barrier-bar complex. The overlying Ness Formation was deposited on supra- or intertidal fiats, and comprises silty channel sands with silts, muds and thin coals. The sands of both Formations are mainly quartz-rich, with up to 12% by volume of feldspar, and variable proportions of clayey matrix. Early carbonate cementation preceded a phase of quartz overgrowth, which continued during burial. Later dissolution of unstable grains, dominantly feldspars, was followed by precipitation of pore-filling kaolinite and minor late-stage mineral phases. Better permeability of the Ness sands (up to 500 mD) relative to the Etive (mostly <10 mD) is mainly due to the effects of diagenesis on different lithofacies. Silty sands escaped intense quartz cementation and were thus more affected by acid groundwaters which improved permeability.

scholarly journals Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life history dynamics

2021 ◽  
Author(s):  
Audrey J. Geffen ◽  
Jon Albretsen ◽  
Bastian Huwer ◽  
Richard D.M. Nash
Keyword(s):  
Life History ◽  
North Sea ◽  
Early Life ◽  
Multidisciplinary Approach ◽  
Early Life History ◽  
Northern North Sea

scholarly journals Reconstructing early Holocene seasonal bottom-water temperatures in the northern North Sea using stable oxygen isotope records of Arctica islandica shells

2021 ◽  
Vol 567 ◽  
pp. 110242
Author(s):  
Tamara Trofimova ◽  
Carin Andersson ◽  
Fabian G.W. Bonitz ◽  
Leif-Erik Rydland Pedersen ◽  
Bernd R. Schöne
Keyword(s):  
Oxygen Isotope ◽  
North Sea ◽  
Bottom Water ◽  
Early Holocene ◽  
Arctica Islandica ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen ◽  
Northern North Sea

Hydrocarbon plays in the northern North Sea

1990 ◽  
Vol 50 (1) ◽  
pp. 441-470 ◽  
Author(s):  
R. M. Pegrum ◽  
A. M. Spencer
Keyword(s):  
North Sea ◽  
Northern North Sea

Variations in Temperature and Salinity in the Northern North Sea

1936 ◽  
Vol 11 (2) ◽  
pp. 169-182
Author(s):  
P. M. v. Riel
Keyword(s):  
North Sea ◽  
Northern North Sea

Magnetic mineralogy of sandstones from the Lunde Formation (late Triassic), northern North Sea, UK: origin of the palaeomagnetic signal

1995 ◽  
Vol 98 (1) ◽  
pp. 119-147 ◽  
Author(s):  
Mark W. Hounslow ◽  
Barbara A. Maher ◽  
Laurence Thistlewood
Keyword(s):  
North Sea ◽  
Late Triassic ◽  
Magnetic Mineralogy ◽  
Northern North Sea

Late Jurassic-Early Cretaceous inversion of the northern East Shetland Basin, northern North Sea

1995 ◽  
Vol 88 (1) ◽  
pp. 275-306 ◽  
Author(s):  
D. W. Thomas ◽  
M. P. Coward
Keyword(s):  
North Sea ◽  
Early Cretaceous ◽  
Late Jurassic ◽  
Northern North Sea

Copepod grazing during a declining spring phytoplankton bloom in the Northern North Sea

1978 ◽  
Vol 49 (4) ◽  
pp. 303-315 ◽  
Author(s):  
J. C. Gamble
Keyword(s):  
North Sea ◽  
Phytoplankton Bloom ◽  
Spring Phytoplankton Bloom ◽  
Copepod Grazing ◽  
Northern North Sea

Deep channels in the Cenomanian–Danian Chalk Group of the German North Sea sector: Evidence of strong constructional and erosional bottom currents and effect on reservoir quality distribution

AAPG Bulletin ◽  
2008 ◽  
Vol 92 (11) ◽  
pp. 1565-1586 ◽  
Author(s):  
Finn Surlyk ◽  
Solvejg Kolbye Jensen ◽  
Michael Engkilde
Keyword(s):  
North Sea ◽  
Reservoir Quality ◽  
Bottom Currents
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